🥀
This commit is contained in:
parent
8e4b18c590
commit
5c260f9740
15
.idea/dataSources.xml
generated
Normal file
15
.idea/dataSources.xml
generated
Normal file
@ -0,0 +1,15 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="DataSourceManagerImpl" format="xml" multifile-model="true">
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<data-source source="LOCAL" name="testbed_i_think@localhost" uuid="ba7bd11e-a526-49f4-ab27-28ba42665ce5">
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<driver-ref>postgresql</driver-ref>
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<synchronize>true</synchronize>
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<jdbc-driver>org.postgresql.Driver</jdbc-driver>
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<jdbc-url>jdbc:postgresql://localhost:5432/testbed_i_think</jdbc-url>
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<jdbc-additional-properties>
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<property name="JdbcLog.Enabled" value="true" />
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</jdbc-additional-properties>
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<working-dir>$ProjectFileDir$</working-dir>
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</data-source>
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</component>
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</project>
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81
diamond.go
Normal file
81
diamond.go
Normal file
@ -0,0 +1,81 @@
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package orm
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import (
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"context"
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"github.com/jackc/pgx/v5/pgxpool"
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"time"
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)
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type Engine struct {
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modelMap *ModelMap
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conn *pgxpool.Pool
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m2mSeen map[string]bool
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dryRun bool
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cfg *pgxpool.Config
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ctx context.Context
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}
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func (e *Engine) Models(v ...any) {
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e.modelMap = makeModelMap(v...)
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}
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func (e *Engine) Model(val any) *Query {
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qq := &Query{
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engine: e,
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ctx: context.Background(),
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wheres: make(map[string][]any),
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joins: make(map[*Relationship][3]string),
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orders: make([]string, 0),
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relatedModels: make(map[string]*Model),
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}
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return qq.Model(val)
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}
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func (e *Engine) Migrate() error {
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failedMigrations := make(map[string]*Model)
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var err error
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for mk, m := range e.modelMap.Map {
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err = m.migrate(e)
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if err != nil {
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failedMigrations[mk] = m
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}
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}
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for len(failedMigrations) > 0 {
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e.m2mSeen = make(map[string]bool)
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for mk, m := range failedMigrations {
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err = m.migrate(e)
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if err == nil {
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delete(failedMigrations, mk)
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}
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}
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}
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return err
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}
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func Open(connString string) (*Engine, error) {
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e := &Engine{
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modelMap: &ModelMap{
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Map: make(map[string]*Model),
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},
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m2mSeen: make(map[string]bool),
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dryRun: connString == "",
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ctx: context.Background(),
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}
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if connString != "" {
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var err error
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e.cfg, err = pgxpool.ParseConfig(connString)
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e.cfg.MinConns = 5
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e.cfg.MaxConns = 10
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e.cfg.MaxConnIdleTime = time.Minute * 2
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if err != nil {
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return nil, err
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}
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e.conn, err = pgxpool.NewWithConfig(e.ctx, e.cfg)
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if err != nil {
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return nil, err
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}
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}
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return e, nil
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}
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133
field.go
Normal file
133
field.go
Normal file
@ -0,0 +1,133 @@
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package orm
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import (
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"fmt"
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"net"
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"reflect"
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"time"
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)
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type Field struct {
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Name string
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ColumnName string
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ColumnType string
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Type reflect.Type
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Original reflect.StructField
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Model *Model
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Index int
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AutoIncrement bool
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PrimaryKey bool
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Nullable bool
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isForeignKey bool
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fk *Relationship
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}
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func (f *Field) alias() (string, string) {
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columnName := f.Model.Fields[f.Model.IDField].ColumnName
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if f.ColumnType != "" {
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columnName = f.ColumnName
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}
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return fmt.Sprintf("%s.%s", f.Model.TableName, columnName), fmt.Sprintf("%s_%s", f.Model.TableName, f.ColumnName)
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}
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func (f *Field) aliasWith(a string) (string, string) {
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first := fmt.Sprintf("%s.%s", a, f.ColumnName)
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second := fmt.Sprintf("%s_%s", a, f.ColumnName)
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return first, second
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}
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func (f *Field) key() string {
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return fmt.Sprintf("%s.%s", f.Model.Name, f.Name)
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}
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func columnType(ty reflect.Type, isPk, isAutoInc bool) string {
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it := ty
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switch it.Kind() {
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case reflect.Ptr:
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for it.Kind() == reflect.Ptr {
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it = it.Elem()
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}
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case reflect.Int32, reflect.Uint32:
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if isPk || isAutoInc {
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return "serial"
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} else {
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return "int"
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}
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case reflect.Int64, reflect.Uint64, reflect.Int, reflect.Uint:
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if isPk || isAutoInc {
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return "bigserial"
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} else {
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return "bigint"
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}
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case reflect.String:
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return "text"
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case reflect.Float32:
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return "float4"
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case reflect.Float64:
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return "double precision"
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case reflect.Bool:
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return "boolean"
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case reflect.Struct:
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if canConvertTo[time.Time](ty) {
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return "timestamptz"
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}
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if canConvertTo[net.IP](ty) {
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return "inet"
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}
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if canConvertTo[net.IPNet](ty) {
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return "cidr"
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}
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default:
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return ""
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}
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return ""
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}
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func parseField(f reflect.StructField, minfo *Model, modelMap map[string]*Model, i int) *Field {
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field := &Field{
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Name: f.Name,
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Original: f,
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Index: i,
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}
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tags := parseTags(f.Tag.Get("d"))
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if tags["-"] != "" {
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return nil
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}
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field.PrimaryKey = tags["pk"] != "" || tags["primarykey"] != "" || field.Name == "ID"
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field.AutoIncrement = tags["autoinc"] != ""
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field.Nullable = tags["nullable"] != ""
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field.ColumnType = tags["type"]
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if field.ColumnType == "" {
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field.ColumnType = columnType(f.Type, field.PrimaryKey, field.AutoIncrement)
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}
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field.ColumnName = tags["column"]
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if field.ColumnName == "" {
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field.ColumnName = pascalToSnakeCase(field.Name)
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}
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if field.PrimaryKey {
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minfo.IDField = field.Name
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}
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elem := f.Type
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for elem.Kind() == reflect.Ptr {
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if !field.Nullable {
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field.Nullable = true
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}
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elem = elem.Elem()
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}
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field.Type = elem
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switch elem.Kind() {
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case reflect.Array, reflect.Slice:
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elem = elem.Elem()
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fallthrough
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case reflect.Struct:
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if canConvertTo[Document](elem) && f.Anonymous {
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minfo.TableName = tags["table"]
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return nil
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} else if field.ColumnType == "" {
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minfo.Relationships[field.Name] = parseRelationship(f, modelMap, minfo.Type, i)
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}
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}
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return field
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}
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1
go.mod
1
go.mod
@ -12,6 +12,7 @@ require (
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require (
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github.com/davecgh/go-spew v1.1.1 // indirect
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github.com/henvic/pgq v0.0.4 // indirect
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github.com/huandu/xstrings v1.4.0 // indirect
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github.com/jackc/pgpassfile v1.0.0 // indirect
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github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
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2
go.sum
2
go.sum
@ -4,6 +4,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/go-loremipsum/loremipsum v1.1.4 h1:RJaJlJwX4y9A2+CMgKIyPcjuFHFKTmaNMhxbL+sI6Vg=
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github.com/go-loremipsum/loremipsum v1.1.4/go.mod h1:whNWskGoefTakPnCu2CO23v5Y7RwiG4LMOEtTDaBeOY=
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github.com/henvic/pgq v0.0.4 h1:BgLnxofZJSWWs+9VOf19Gr9uBkSVbHWGiu8wix1nsIY=
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github.com/henvic/pgq v0.0.4/go.mod h1:k0FMvOgmQ45MQ3TgCLe8I3+sDKy9lPAiC2m9gg37pVA=
|
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github.com/huandu/go-assert v1.1.6 h1:oaAfYxq9KNDi9qswn/6aE0EydfxSa+tWZC1KabNitYs=
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github.com/huandu/go-assert v1.1.6/go.mod h1:JuIfbmYG9ykwvuxoJ3V8TB5QP+3+ajIA54Y44TmkMxs=
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github.com/huandu/go-sqlbuilder v1.35.1 h1:znTuAksxq3T1rYfr3nsD4P0brWDY8qNzdZnI6+vtia4=
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|
297
model.go
Normal file
297
model.go
Normal file
@ -0,0 +1,297 @@
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package orm
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import (
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"fmt"
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"github.com/jackc/pgx/v5"
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"github.com/jackc/pgx/v5/pgxpool"
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"reflect"
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"strings"
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)
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type Model struct {
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Name string
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Type reflect.Type
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Relationships map[string]*Relationship
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IDField string
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Fields map[string]*Field
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FieldsByColumnName map[string]*Field
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TableName string
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embeddedIsh bool
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}
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func (m *Model) addField(field *Field) {
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field.Model = m
|
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m.Fields[field.Name] = field
|
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m.FieldsByColumnName[field.ColumnName] = field
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}
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func (m *Model) getAliasFields() map[string]string {
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fields := make(map[string]string)
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for _, f := range m.Fields {
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if f.fk != nil {
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continue
|
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}
|
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fields[f.Name] = fmt.Sprintf("%s.%s as %s_%s", m.TableName, f.ColumnName, strings.ToLower(m.Name), f.ColumnName)
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}
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return fields
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}
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func (m *Model) getPrimaryKey(val reflect.Value) (string, any) {
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colField := m.Fields[m.IDField]
|
||||
if colField == nil {
|
||||
return "", nil
|
||||
}
|
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colName := colField.ColumnName
|
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idField := val.FieldByName(m.IDField)
|
||||
if idField.IsValid() {
|
||||
return colName, idField.Interface()
|
||||
}
|
||||
return "", nil
|
||||
}
|
||||
|
||||
func (m *Model) insert(v reflect.Value, e *Query, parentFks map[string]any) (any, error) {
|
||||
var isTopLevel bool
|
||||
var err error
|
||||
var cn *pgxpool.Conn
|
||||
if e.tx == nil && !e.engine.dryRun {
|
||||
isTopLevel = true
|
||||
var tx pgx.Tx
|
||||
cn, err = e.engine.conn.Acquire(e.ctx)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
tx, err = cn.Begin(e.ctx)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
e.tx = tx
|
||||
defer func() {
|
||||
if err != nil {
|
||||
e.tx.Rollback(e.ctx)
|
||||
}
|
||||
fmt.Printf("[DBG] discarding tx @ %p\n", e.tx)
|
||||
fmt.Printf("[DBG] discarding conn @ %p\n", e.tx.Conn())
|
||||
fmt.Printf("[DBG] discarding outer conn @ %p\n", cn)
|
||||
e.tx = nil
|
||||
cn.Release()
|
||||
}()
|
||||
}
|
||||
for v.Kind() == reflect.Pointer {
|
||||
v = v.Elem()
|
||||
}
|
||||
t := v.Type()
|
||||
var cols []string
|
||||
var placeholders []string
|
||||
var args []any
|
||||
var returningField *Field
|
||||
for k, vv := range parentFks {
|
||||
cols = append(cols, k)
|
||||
placeholders = append(placeholders, fmt.Sprintf("$%d", len(placeholders)+1))
|
||||
args = append(args, vv)
|
||||
}
|
||||
for _, ff := range m.Fields {
|
||||
//ft := t.Field(ff.Index)
|
||||
var fv reflect.Value
|
||||
if ff.Index > -1 {
|
||||
fv = v.Field(ff.Index)
|
||||
}
|
||||
|
||||
mfk := ff.fk
|
||||
if mfk == nil {
|
||||
mfk = m.Relationships[ff.Name]
|
||||
}
|
||||
if mfk != nil {
|
||||
af := v.FieldByName(mfk.FieldName)
|
||||
if af.Kind() == reflect.Struct {
|
||||
idField := af.FieldByName(ff.fk.RelatedModel.IDField)
|
||||
cols = append(cols, ff.ColumnName)
|
||||
placeholders = append(placeholders, fmt.Sprintf("$%d", len(placeholders)+1))
|
||||
if !idField.IsValid() {
|
||||
var nid any
|
||||
nid, err = ff.fk.RelatedModel.insert(af, e, make(map[string]any))
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
args = append(args, nid)
|
||||
} else {
|
||||
args = append(args, idField.Interface())
|
||||
}
|
||||
}
|
||||
continue
|
||||
}
|
||||
col := ff.ColumnName
|
||||
if ff.PrimaryKey {
|
||||
returningField = ff
|
||||
if fv.IsValid() && !fv.IsZero() {
|
||||
cols = append(cols, col)
|
||||
placeholders = append(placeholders, fmt.Sprintf("$%d", len(placeholders)+1))
|
||||
args = append(args, fv.Interface())
|
||||
}
|
||||
continue
|
||||
}
|
||||
if fv.IsValid() {
|
||||
cols = append(cols, col)
|
||||
placeholders = append(placeholders, fmt.Sprintf("$%d", len(placeholders)+1))
|
||||
args = append(args, fv.Interface())
|
||||
}
|
||||
}
|
||||
var rfc = "id"
|
||||
if returningField != nil {
|
||||
rfc = returningField.ColumnName
|
||||
}
|
||||
scols := fmt.Sprintf("(%s)", strings.Join(cols, ", "))
|
||||
svals := fmt.Sprintf("VALUES (%s) ", strings.Join(placeholders, ", "))
|
||||
sql := fmt.Sprintf("INSERT INTO %s ",
|
||||
m.TableName,
|
||||
)
|
||||
if len(cols) > 0 {
|
||||
sql += scols
|
||||
sql += " "
|
||||
sql += svals
|
||||
} else {
|
||||
sql += "DEFAULT VALUES "
|
||||
}
|
||||
sql += fmt.Sprintf("RETURNING %s", rfc)
|
||||
fmt.Printf("[INSERT] %s { %s }\n", sql, logTrunc(args, 200))
|
||||
var id any
|
||||
{
|
||||
if v.FieldByName(m.IDField).IsValid() {
|
||||
id = v.FieldByName(m.IDField).Interface()
|
||||
}
|
||||
}
|
||||
if !e.engine.dryRun {
|
||||
qr := e.engine.conn.QueryRow(e.ctx, sql, args...)
|
||||
err = qr.Scan(&id)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
}
|
||||
{
|
||||
retField := v.FieldByName(returningField.Name)
|
||||
if retField.IsValid() {
|
||||
retField.Set(reflect.ValueOf(id))
|
||||
}
|
||||
}
|
||||
for i := range t.NumField() {
|
||||
ft := t.Field(i)
|
||||
fv := v.Field(i)
|
||||
if ft.Type.Kind() == reflect.Slice {
|
||||
for j := range fv.Len() {
|
||||
child := fv.Index(j).Addr()
|
||||
cm := e.engine.modelMap.Map[child.Type().Elem().Name()]
|
||||
if cm != nil && cm.embeddedIsh {
|
||||
cfk := map[string]any{
|
||||
m.TableName + "_id": id,
|
||||
}
|
||||
if m.Relationships[ft.Name] != nil {
|
||||
cfk = map[string]any{
|
||||
pascalToSnakeCase(m.Relationships[ft.Name].JoinField()): id,
|
||||
}
|
||||
}
|
||||
_, err = cm.insert(child, e, cfk)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
} else if cm != nil {
|
||||
rel := m.Relationships[ft.Name]
|
||||
if rel != nil {
|
||||
err = rel.joinInsert(child, e, id)
|
||||
if err != nil {
|
||||
return 0, err
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if isTopLevel && !e.engine.dryRun {
|
||||
err = e.tx.Commit(e.ctx)
|
||||
}
|
||||
return id, err
|
||||
}
|
||||
|
||||
func (m *Model) update(val reflect.Value, q *Query, parentFks map[string]any) error {
|
||||
var isTopLevel bool
|
||||
var err error
|
||||
if q.tx == nil && !q.engine.dryRun {
|
||||
isTopLevel = true
|
||||
var tx pgx.Tx
|
||||
tx, err = q.engine.conn.Begin(q.ctx)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
q.tx = tx
|
||||
defer func() {
|
||||
if err != nil {
|
||||
q.tx.Rollback(q.ctx)
|
||||
q.tx = nil
|
||||
}
|
||||
}()
|
||||
}
|
||||
cnt := 1
|
||||
sets := make([]string, 0)
|
||||
vals := make([]any, 0)
|
||||
for val.Kind() == reflect.Pointer {
|
||||
val = val.Elem()
|
||||
}
|
||||
for _, field := range m.Fields {
|
||||
if field.fk != nil || field.ColumnType == "" || field.Name == m.IDField {
|
||||
continue
|
||||
}
|
||||
if field.Index > -1 && field.Index < val.NumField() && field.fk == nil {
|
||||
f := val.Field(field.Index)
|
||||
sets = append(sets, fmt.Sprintf("%s = $%d", field.ColumnName, cnt))
|
||||
vals = append(vals, f.Interface())
|
||||
cnt++
|
||||
} else if _, ok := parentFks[field.ColumnName]; ok {
|
||||
sets = append(sets, fmt.Sprintf("%s = $%d", field.ColumnName, cnt))
|
||||
vals = append(vals, parentFks[field.ColumnName])
|
||||
cnt++
|
||||
}
|
||||
}
|
||||
mcol, mpk := m.getPrimaryKey(val)
|
||||
sql := fmt.Sprintf("UPDATE %s SET %s WHERE %s = %v", m.TableName, strings.Join(sets, ", "), mcol, mpk)
|
||||
fmt.Printf("[UPDATE] %s { %s }\n", sql, logTrunc(vals, 200))
|
||||
if !q.engine.dryRun {
|
||||
if _, err = q.tx.Exec(q.ctx, sql, vals...); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
for _, rel := range m.Relationships {
|
||||
if rel.Idx > -1 && rel.Idx < val.NumField() {
|
||||
f := val.Field(rel.Idx)
|
||||
if f.Kind() == reflect.Slice ||
|
||||
f.Kind() == reflect.Array {
|
||||
err = diffSlices(q.engine, q, val, rel)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else if rel.RelatedModel.embeddedIsh && !m.embeddedIsh {
|
||||
elemish := f.Type()
|
||||
for elemish.Kind() == reflect.Ptr {
|
||||
elemish = elemish.Elem()
|
||||
}
|
||||
if elemish.Kind() == reflect.Struct {
|
||||
err = rel.RelatedModel.update(f, q, map[string]any{
|
||||
pascalToSnakeCase(rel.JoinField()): mpk,
|
||||
})
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
var finerr error
|
||||
if isTopLevel && !q.engine.dryRun {
|
||||
finerr = q.tx.Commit(q.ctx)
|
||||
}
|
||||
return finerr
|
||||
}
|
||||
|
||||
/*func (m *Model) ensure(q *Query, val reflect.Value) error {
|
||||
if _, pk := m.getPrimaryKey(val); pk != nil && !reflect.ValueOf(pk).IsZero() {
|
||||
return nil
|
||||
}
|
||||
|
||||
}*/
|
106
model_internals.go
Normal file
106
model_internals.go
Normal file
@ -0,0 +1,106 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"strings"
|
||||
)
|
||||
|
||||
func parseModel(model any) *Model {
|
||||
t := reflect.TypeOf(model)
|
||||
for t.Kind() == reflect.Ptr {
|
||||
t = t.Elem()
|
||||
}
|
||||
minfo := &Model{
|
||||
Name: t.Name(),
|
||||
Relationships: make(map[string]*Relationship),
|
||||
Fields: make(map[string]*Field),
|
||||
FieldsByColumnName: make(map[string]*Field),
|
||||
Type: t,
|
||||
}
|
||||
for i := range t.NumField() {
|
||||
f := t.Field(i)
|
||||
if !f.IsExported() {
|
||||
continue
|
||||
}
|
||||
//minfo.Fields[f.Name] = parseField(f, minfo, i)
|
||||
}
|
||||
if minfo.TableName == "" {
|
||||
minfo.TableName = pascalToSnakeCase(t.Name())
|
||||
}
|
||||
return minfo
|
||||
}
|
||||
|
||||
func parseModelFields(model *Model, modelMap map[string]*Model) {
|
||||
t := model.Type
|
||||
for i := range t.NumField() {
|
||||
f := t.Field(i)
|
||||
fi := parseField(f, model, modelMap, i)
|
||||
if fi != nil {
|
||||
model.addField(fi)
|
||||
}
|
||||
}
|
||||
}
|
||||
func makeModelMap(models ...any) *ModelMap {
|
||||
modelMap := &ModelMap{
|
||||
Map: make(map[string]*Model),
|
||||
}
|
||||
//modelMap := make(map[string]*Model)
|
||||
for _, model := range models {
|
||||
minfo := parseModel(model)
|
||||
// modelMap.Mux.Lock()
|
||||
modelMap.Map[minfo.Name] = minfo
|
||||
// modelMap.Mux.Unlock()
|
||||
}
|
||||
for _, model := range modelMap.Map {
|
||||
// modelMap.Mux.Lock()
|
||||
parseModelFields(model, modelMap.Map)
|
||||
// modelMap.Mux.Unlock()
|
||||
}
|
||||
tagManyToMany(modelMap)
|
||||
for _, model := range modelMap.Map {
|
||||
// modelMap.Mux.Lock()
|
||||
for _, ref := range model.Relationships {
|
||||
if ref.Type != ManyToMany && ref.Idx != -1 {
|
||||
addForeignKeyFields(ref)
|
||||
}
|
||||
}
|
||||
// modelMap.Mux.Unlock()
|
||||
}
|
||||
return modelMap
|
||||
}
|
||||
|
||||
func tagManyToMany(models *ModelMap) {
|
||||
hasManys := make(map[string]*Relationship)
|
||||
for _, model := range models.Map {
|
||||
for relName := range model.Relationships {
|
||||
hasManys[model.Name+"."+relName] = model.Relationships[relName]
|
||||
}
|
||||
}
|
||||
for _, model := range models.Map {
|
||||
// models.Mux.Lock()
|
||||
for relName := range model.Relationships {
|
||||
|
||||
mb := model.Relationships[relName].RelatedModel
|
||||
var name string
|
||||
for n, reltmp := range hasManys {
|
||||
if !strings.HasPrefix(n, mb.Name) || reltmp.Type != HasMany {
|
||||
continue
|
||||
}
|
||||
if reltmp.RelatedType == model.Type {
|
||||
name = reltmp.FieldName
|
||||
break
|
||||
}
|
||||
}
|
||||
if rel2, ok := mb.Relationships[name]; ok {
|
||||
if name < relName &&
|
||||
rel2.Type == HasMany && model.Relationships[relName].Type == HasMany {
|
||||
mb.Relationships[name].Type = ManyToMany
|
||||
mb.Relationships[name].m2mInverse = model.Relationships[relName]
|
||||
model.Relationships[relName].Type = ManyToMany
|
||||
model.Relationships[relName].m2mInverse = mb.Relationships[name]
|
||||
}
|
||||
}
|
||||
}
|
||||
// models.Mux.Unlock()
|
||||
}
|
||||
}
|
10
model_map.go
Normal file
10
model_map.go
Normal file
@ -0,0 +1,10 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"sync"
|
||||
)
|
||||
|
||||
type ModelMap struct {
|
||||
Map map[string]*Model
|
||||
Mux sync.RWMutex
|
||||
}
|
110
model_migration.go
Normal file
110
model_migration.go
Normal file
@ -0,0 +1,110 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
)
|
||||
|
||||
func (m *Model) createTableSql() string {
|
||||
var fields []string
|
||||
var fks []string
|
||||
for _, field := range m.Fields {
|
||||
isStructOrSliceOfStructs := field.Type.Kind() == reflect.Struct ||
|
||||
((field.Type.Kind() == reflect.Slice || field.Type.Kind() == reflect.Array) &&
|
||||
field.Type.Elem().Kind() == reflect.Struct)
|
||||
if field.PrimaryKey {
|
||||
fields = append(fields, fmt.Sprintf("%s %s PRIMARY KEY", field.ColumnName, field.ColumnType))
|
||||
} else if (field.fk != nil && field.fk.Type != HasMany && field.fk.Type != ManyToMany) && field.isForeignKey {
|
||||
colType := serialToRegular(field.ColumnType)
|
||||
if !field.Nullable {
|
||||
colType += " NOT NULL "
|
||||
}
|
||||
ffk := field.fk.RelatedModel.Fields[field.fk.RelatedModel.IDField]
|
||||
if ffk != nil {
|
||||
fks = append(fks, fmt.Sprintf("%s %s REFERENCES %s(%s)",
|
||||
field.ColumnName, colType,
|
||||
field.fk.RelatedModel.TableName,
|
||||
field.fk.RelatedModel.Fields[field.fk.RelatedModel.IDField].ColumnName))
|
||||
}
|
||||
} else if !isStructOrSliceOfStructs || field.ColumnType != "" {
|
||||
lalala := fmt.Sprintf("%s %s", field.ColumnName, field.ColumnType)
|
||||
if !field.Nullable {
|
||||
lalala += " NOT NULL"
|
||||
}
|
||||
fields = append(fields, lalala)
|
||||
}
|
||||
}
|
||||
inter := strings.Join(fields, ", ")
|
||||
if len(fks) > 0 {
|
||||
inter += ", "
|
||||
inter += strings.Join(fks, ", ")
|
||||
}
|
||||
return fmt.Sprintf("CREATE TABLE IF NOT EXISTS %s (%s);",
|
||||
m.TableName, inter)
|
||||
}
|
||||
|
||||
func (m *Model) createJoinTableSql(relName string) string {
|
||||
ref, ok := m.Relationships[relName]
|
||||
if !ok {
|
||||
return ""
|
||||
}
|
||||
aTable := m.TableName
|
||||
joinTableName := ref.JoinTable()
|
||||
fct := serialToRegular(ref.Model.Fields[ref.Model.IDField].ColumnType)
|
||||
rct := serialToRegular(ref.RelatedModel.Fields[ref.RelatedModel.IDField].ColumnType)
|
||||
pkSection := fmt.Sprintf(",\nPRIMARY KEY (%s, %s_id)",
|
||||
fmt.Sprintf("%s_%s",
|
||||
aTable, pascalToSnakeCase(ref.FieldName),
|
||||
),
|
||||
ref.RelatedModel.TableName,
|
||||
)
|
||||
if ref.Type == HasMany || ref.Type == ManyToMany {
|
||||
pkSection = ""
|
||||
}
|
||||
return fmt.Sprintf(`CREATE TABLE IF NOT EXISTS %s (
|
||||
%s %s REFERENCES %s(%s),
|
||||
%s_id %s REFERENCES %s(%s)%s
|
||||
);`,
|
||||
joinTableName,
|
||||
fmt.Sprintf("%s_%s",
|
||||
aTable, pascalToSnakeCase(ref.FieldName),
|
||||
),
|
||||
fct,
|
||||
ref.Model.TableName, ref.Model.Fields[ref.Model.IDField].ColumnName,
|
||||
ref.RelatedModel.TableName,
|
||||
rct,
|
||||
ref.RelatedModel.TableName, ref.RelatedModel.Fields[ref.RelatedModel.IDField].ColumnName,
|
||||
pkSection,
|
||||
)
|
||||
}
|
||||
|
||||
func (m *Model) migrate(engine *Engine) error {
|
||||
sql := m.createTableSql()
|
||||
fmt.Println(sql)
|
||||
if !engine.dryRun {
|
||||
_, err := engine.conn.Exec(engine.ctx, sql)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
for relName, rel := range m.Relationships {
|
||||
relkey := rel.Model.Name
|
||||
if (rel.Type == ManyToMany && !engine.m2mSeen[relkey]) ||
|
||||
(rel.Model.embeddedIsh && !rel.RelatedModel.embeddedIsh && rel.Type == HasMany) {
|
||||
if rel.Type == ManyToMany {
|
||||
engine.m2mSeen[relkey] = true
|
||||
engine.m2mSeen[rel.RelatedModel.Name] = true
|
||||
}
|
||||
jtsql := m.createJoinTableSql(relName)
|
||||
fmt.Println(jtsql)
|
||||
if !engine.dryRun {
|
||||
_, err := engine.conn.Exec(engine.ctx, jtsql)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
174
model_misc.go
Normal file
174
model_misc.go
Normal file
@ -0,0 +1,174 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"reflect"
|
||||
)
|
||||
|
||||
func fetchJoinTableChildren(e *Engine, ctx context.Context, childRel *Relationship, pid any) (map[any]struct{}, error) {
|
||||
rsql := fmt.Sprintf("SELECT %s_%s FROM %s where %s_id = $1",
|
||||
childRel.Model.TableName, pascalToSnakeCase(childRel.FieldName),
|
||||
childRel.JoinTable(), childRel.RelatedModel.TableName)
|
||||
res := make(map[any]struct{})
|
||||
if !e.dryRun {
|
||||
rows, err := e.conn.Query(ctx, rsql, pid)
|
||||
defer rows.Close()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
for rows.Next() {
|
||||
var id any
|
||||
if err = rows.Scan(&id); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
res[id] = struct{}{}
|
||||
}
|
||||
}
|
||||
return res, nil
|
||||
}
|
||||
|
||||
func fetchChildren(e *Engine, childRel *Relationship, pid any) (map[any]reflect.Value, error) {
|
||||
res := make(map[any]reflect.Value)
|
||||
qq := e.Model(reflect.New(childRel.RelatedModel.Type).Elem().Interface())
|
||||
rrel := childRel.RelatedModel.Relationships[childRel.Model.Name]
|
||||
rfield := childRel.RelatedModel.Fields[rrel.FieldName]
|
||||
/*if rrel == nil {
|
||||
return res, fmt.Errorf("please report this, it shouldn't have happened :(")
|
||||
}*/
|
||||
rawRows, err := qq.Where(fmt.Sprintf("%s.%s = $1", childRel.RelatedModel.TableName, rfield.ColumnName), pid).Find()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
inter := make([]any, 0)
|
||||
rrv := reflect.ValueOf(rawRows)
|
||||
for i := range rrv.Len() {
|
||||
inter = append(inter, rrv.Index(i).Interface())
|
||||
}
|
||||
for _, row := range inter {
|
||||
v := reflect.ValueOf(row)
|
||||
bv := v
|
||||
for bv.Kind() == reflect.Ptr {
|
||||
bv = bv.Elem()
|
||||
}
|
||||
id := v.FieldByName(childRel.RelatedModel.IDField).Interface()
|
||||
res[id] = v
|
||||
}
|
||||
|
||||
return res, nil
|
||||
}
|
||||
|
||||
func preDiff(e *Engine, value reflect.Value) (*Model, error) {
|
||||
ptype := value.Type()
|
||||
for ptype.Kind() == reflect.Pointer {
|
||||
ptype = ptype.Elem()
|
||||
}
|
||||
model, ok := e.modelMap.Map[ptype.Name()]
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("model '%s' not found", ptype.Name())
|
||||
}
|
||||
return model, nil
|
||||
}
|
||||
|
||||
func diffManySlices(e *Engine, q *Query, value reflect.Value, rel *Relationship) error {
|
||||
model, err := preDiff(e, value)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
_, ppk := model.getPrimaryKey(value)
|
||||
dbChildren, err := fetchChildren(e, rel, ppk)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
memChildren := make(map[any]reflect.Value)
|
||||
fv := value.FieldByName(rel.FieldName)
|
||||
for i := range fv.Len() {
|
||||
child := fv.Index(i)
|
||||
_, cpk := rel.RelatedModel.getPrimaryKey(child)
|
||||
if cpk != nil {
|
||||
memChildren[cpk] = child
|
||||
}
|
||||
}
|
||||
// deletions //
|
||||
for pk := range dbChildren {
|
||||
if _, found := memChildren[pk]; !found {
|
||||
table := rel.RelatedModel.TableName
|
||||
idField := rel.RelatedModel.Fields[rel.RelatedModel.IDField]
|
||||
_, err = q.tx.Exec(q.ctx, fmt.Sprintf("DELETE FROM %s where %s = $1", table, idField.ColumnName), pk)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
mField := model.Fields[model.IDField]
|
||||
mpks := map[string]any{}
|
||||
if !model.embeddedIsh {
|
||||
mpks[mField.ColumnName] = ppk
|
||||
}
|
||||
// update || insert //
|
||||
for i := range fv.Len() {
|
||||
cur := fv.Index(i)
|
||||
_, cpk := rel.RelatedModel.getPrimaryKey(cur)
|
||||
if cpk == nil || reflect.ValueOf(cpk).IsZero() {
|
||||
|
||||
_, err = rel.RelatedModel.insert(cur, q, mpks)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
err = rel.RelatedModel.update(cur, q, mpks)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func diffManyToManySlices(e *Engine, q *Query, value reflect.Value, rel *Relationship) error {
|
||||
model, err := preDiff(e, value)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
_, ppk := model.getPrimaryKey(value)
|
||||
ids, err := fetchJoinTableChildren(e, q.ctx, rel, ppk)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
memIds := make(map[any]reflect.Value)
|
||||
fv := value.FieldByName(rel.FieldName)
|
||||
for i := range fv.Len() {
|
||||
child := fv.Index(i)
|
||||
_, cpk := rel.RelatedModel.getPrimaryKey(child)
|
||||
if cpk != nil {
|
||||
memIds[cpk] = child
|
||||
}
|
||||
}
|
||||
for memId := range memIds {
|
||||
if _, found := ids[memId]; !found {
|
||||
err = rel.joinInsert(memIds[memId], q, ppk)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
for id := range ids {
|
||||
if _, found := memIds[id]; !found {
|
||||
err = rel.joinDelete(ppk, id, q)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func diffSlices(e *Engine, q *Query, value reflect.Value, rel *Relationship) error {
|
||||
if rel.Type == ManyToMany || rel.m2mIsh() {
|
||||
return diffManyToManySlices(e, q, value, rel)
|
||||
}
|
||||
if rel.Type == HasMany {
|
||||
return diffManySlices(e, q, value, rel)
|
||||
}
|
||||
return nil
|
||||
}
|
211
query.go
Normal file
211
query.go
Normal file
@ -0,0 +1,211 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
sb "github.com/henvic/pgq"
|
||||
"github.com/jackc/pgx/v5"
|
||||
"reflect"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type Query struct {
|
||||
model *Model
|
||||
relatedModels map[string]*Model
|
||||
wheres map[string][]any
|
||||
orders []string
|
||||
limit int
|
||||
offset int
|
||||
joins map[*Relationship][3]string
|
||||
engine *Engine
|
||||
ctx context.Context
|
||||
tx pgx.Tx
|
||||
}
|
||||
|
||||
func (q *Query) totalWheres() int {
|
||||
total := 0
|
||||
for _, w := range q.wheres {
|
||||
total += len(w)
|
||||
}
|
||||
return total
|
||||
}
|
||||
|
||||
func (q *Query) Model(val any) *Query {
|
||||
tt := reflect.TypeOf(val)
|
||||
for tt.Kind() == reflect.Ptr {
|
||||
tt = tt.Elem()
|
||||
}
|
||||
q.model = q.engine.modelMap.Map[tt.Name()]
|
||||
return q
|
||||
}
|
||||
|
||||
func (q *Query) Where(cond any, args ...any) *Query {
|
||||
switch v := cond.(type) {
|
||||
case string:
|
||||
q.wheres[strings.ReplaceAll(v, "$?", fmt.Sprintf("$%d", q.totalWheres()+1))] = args
|
||||
default:
|
||||
rv := reflect.ValueOf(cond)
|
||||
for rv.Kind() == reflect.Ptr {
|
||||
rv = rv.Elem()
|
||||
}
|
||||
rt := rv.Type()
|
||||
for i := range rv.NumField() {
|
||||
field := rt.Field(i)
|
||||
fieldValue := rv.Field(i)
|
||||
if isZero(fieldValue) {
|
||||
continue
|
||||
}
|
||||
mm, ok := q.engine.modelMap.Map[rv.Type().Name()]
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
ff, ok := mm.Fields[field.Name]
|
||||
if !ok || ff.ColumnType == "" {
|
||||
continue
|
||||
}
|
||||
whereClause := fmt.Sprintf("%s.%s = ?", mm.TableName, ff.ColumnName /*, q.totalWheres()+1*/)
|
||||
args = append(args, fieldValue.Interface())
|
||||
q.wheres[whereClause] = args
|
||||
}
|
||||
}
|
||||
return q
|
||||
}
|
||||
|
||||
func (q *Query) Order(order string) *Query {
|
||||
q.orders = append(q.orders, order)
|
||||
return q
|
||||
}
|
||||
|
||||
func (q *Query) Limit(limit int) *Query {
|
||||
q.limit = limit
|
||||
return q
|
||||
}
|
||||
|
||||
func (q *Query) Offset(offset int) *Query {
|
||||
q.offset = offset
|
||||
return q
|
||||
}
|
||||
|
||||
func (q *Query) buildSelect() sb.SelectBuilder {
|
||||
var fields []string
|
||||
|
||||
for _, f := range q.model.Fields {
|
||||
if f.ColumnType == "" {
|
||||
continue
|
||||
}
|
||||
tn, a := f.alias()
|
||||
fields = append(fields, fmt.Sprintf("%s AS %s", tn, a))
|
||||
}
|
||||
seenModels := make(map[string]bool)
|
||||
processField := func(f *Field, m *Model, pfk *Relationship) {
|
||||
if f.ColumnType == "" {
|
||||
if rel, ok := m.Relationships[f.Name]; ok {
|
||||
data, ok2 := q.joins[rel]
|
||||
if ok2 && f.ColumnType != "" {
|
||||
tn, a := f.aliasWith(data[0])
|
||||
fields = append(fields, fmt.Sprintf("%s AS %s", tn, a))
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
{
|
||||
fk := f.fk
|
||||
if fk == nil {
|
||||
fk = m.Relationships[f.Name]
|
||||
}
|
||||
if fk == nil {
|
||||
fk = pfk
|
||||
}
|
||||
if fk != nil && fk.FieldName == f.Name {
|
||||
data, ok2 := q.joins[fk]
|
||||
if ok2 {
|
||||
var (
|
||||
tn, a string
|
||||
)
|
||||
if fk.Type == HasOne {
|
||||
tn, a = fk.RelatedModel.Fields[fk.RelatedModel.IDField].aliasWith(data[0])
|
||||
} else {
|
||||
tn, a = f.aliasWith(data[0])
|
||||
}
|
||||
fields = append(fields, fmt.Sprintf("%s AS %s", tn, a))
|
||||
}
|
||||
return
|
||||
}
|
||||
}
|
||||
if f.Name == pfk.FieldName {
|
||||
f.aliasWith(q.joins[pfk][0])
|
||||
} else {
|
||||
tn, a := f.alias()
|
||||
fields = append(fields, fmt.Sprintf("%s AS %s", tn, a))
|
||||
}
|
||||
|
||||
}
|
||||
for r := range q.joins {
|
||||
if !seenModels[r.aliasThingy()] {
|
||||
seenModels[r.aliasThingy()] = true
|
||||
for _, f := range r.Model.Fields {
|
||||
processField(f, r.Model, r)
|
||||
}
|
||||
}
|
||||
if !seenModels[r.relatedAlias()] {
|
||||
seenModels[r.relatedAlias()] = true
|
||||
for _, f := range r.RelatedModel.Fields {
|
||||
processField(f, r.RelatedModel, r)
|
||||
}
|
||||
}
|
||||
}
|
||||
return sb.Select(fields...)
|
||||
}
|
||||
|
||||
func (q *Query) buildSQL() (string, []any) {
|
||||
sqlb := q.buildSelect().From(q.model.TableName)
|
||||
whereargs := make([]any, 0)
|
||||
if len(q.wheres) > 0 {
|
||||
cnt := 0
|
||||
for w, where := range q.wheres {
|
||||
sqlb = sqlb.Where(w, where...)
|
||||
|
||||
whereargs = append(whereargs, where...)
|
||||
cnt++
|
||||
}
|
||||
}
|
||||
for _, j := range q.joins {
|
||||
sqlb = sqlb.LeftJoin(fmt.Sprintf("%s as %s ON %s", j[1], j[0], j[2]))
|
||||
}
|
||||
ool:
|
||||
for _, o := range q.orders {
|
||||
ac, ok := q.model.Fields[o]
|
||||
if !ok {
|
||||
var rel = ac.fk
|
||||
if ac.ColumnType == "" || rel == nil {
|
||||
rel = q.model.Relationships[o]
|
||||
}
|
||||
if rel != nil {
|
||||
if strings.Contains(o, ".") {
|
||||
split := strings.Split(strings.TrimSuffix(strings.TrimPrefix(o, "."), "."), ".")
|
||||
cm := rel.Model
|
||||
for i, s := range split {
|
||||
if rel != nil {
|
||||
cm = rel.RelatedModel
|
||||
} else if i == len(split)-1 {
|
||||
break
|
||||
} else {
|
||||
continue ool
|
||||
}
|
||||
rel = cm.Relationships[s]
|
||||
}
|
||||
lf := split[len(split)-1]
|
||||
ac, ok = cm.Fields[lf]
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
sqlb = sqlb.OrderBy(ac.ColumnName)
|
||||
}
|
||||
if q.limit > 0 {
|
||||
sqlb = sqlb.Limit(uint64(q.limit))
|
||||
}
|
||||
return sqlb.MustSQL()
|
||||
}
|
165
query_populate.go
Normal file
165
query_populate.go
Normal file
@ -0,0 +1,165 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
)
|
||||
|
||||
const PopulateAll = "~~~ALL~~~"
|
||||
|
||||
func join(r *Relationship) (string, string, string) {
|
||||
rtable := r.RelatedModel.TableName
|
||||
field := r.Model.Fields[r.FieldName]
|
||||
var fk, pk, alias string
|
||||
if !r.RelatedModel.embeddedIsh && !r.Model.embeddedIsh {
|
||||
alias = pascalToSnakeCase(field.Name)
|
||||
fk = fmt.Sprintf("%s.%s", alias, r.RelatedModel.Fields[r.RelatedModel.IDField].ColumnName)
|
||||
pk = fmt.Sprintf("%s.%s", r.Model.TableName, field.ColumnName)
|
||||
alias = pascalToSnakeCase(field.Name)
|
||||
} else if !r.Model.embeddedIsh {
|
||||
alias = pascalToSnakeCase(r.FieldName)
|
||||
sid := strings.TrimSuffix(r.JoinField(), "ID")
|
||||
fk = fmt.Sprintf("%s.%s", alias, r.RelatedModel.Fields[sid].ColumnName)
|
||||
pk = fmt.Sprintf("%s.%s", r.Model.TableName, r.Model.Fields[r.Model.IDField].ColumnName)
|
||||
}
|
||||
return alias, rtable, fmt.Sprintf("%s = %s", fk, pk)
|
||||
}
|
||||
|
||||
func m2mJoin(r *Relationship) [][3]string {
|
||||
result := make([][3]string, 0)
|
||||
jt := r.JoinTable()
|
||||
first := [3]string{
|
||||
pascalToSnakeCase(r.FieldName),
|
||||
jt,
|
||||
fmt.Sprintf("%s = %s",
|
||||
fmt.Sprintf("%s.%s",
|
||||
jt,
|
||||
r.RelatedModel.Fields[r.RelatedModel.IDField].ColumnName,
|
||||
),
|
||||
fmt.Sprintf("%s.%s",
|
||||
r.Model.TableName,
|
||||
r.Model.Fields[r.Model.IDField].ColumnName,
|
||||
),
|
||||
),
|
||||
}
|
||||
second := [3]string{
|
||||
pascalToSnakeCase(r.m2mInverse.FieldName),
|
||||
r.RelatedModel.TableName,
|
||||
fmt.Sprintf("%s = %s",
|
||||
fmt.Sprintf("%s.%s", r.RelatedModel.TableName, r.RelatedModel.Fields[r.RelatedModel.IDField].ColumnName),
|
||||
fmt.Sprintf("%s.%s", jt, r.m2mInverse.JoinField()),
|
||||
),
|
||||
}
|
||||
|
||||
/*first := fmt.Sprintf("%s AS %s ON %s = %s",
|
||||
jt,
|
||||
fmt.Sprintf("%s.%s",
|
||||
jt,
|
||||
r.RelatedModel.Fields[r.RelatedModel.IDField].ColumnName,
|
||||
),
|
||||
fmt.Sprintf("%s.%s",
|
||||
r.Model.TableName,
|
||||
r.Model.Fields[r.Model.IDField].ColumnName,
|
||||
),
|
||||
)
|
||||
second := fmt.Sprintf("%s ON %s = %s",
|
||||
r.RelatedModel.TableName,
|
||||
fmt.Sprintf("%s.%s", r.RelatedModel.TableName, r.RelatedModel.Fields[r.RelatedModel.IDField].ColumnName),
|
||||
fmt.Sprintf("%s.%s", jt, r.m2mInverse.JoinField()),
|
||||
)*/
|
||||
result = append(result, first, second)
|
||||
return result
|
||||
}
|
||||
|
||||
func nestedJoin(m *Model, path string) (joins [][3]string, ree []*Relationship) {
|
||||
splitPath := strings.Split(path, ".")
|
||||
prevModel := m
|
||||
for _, f := range splitPath {
|
||||
rel, ok := m.Relationships[f]
|
||||
if !ok {
|
||||
break
|
||||
}
|
||||
var (
|
||||
fk, pk string
|
||||
)
|
||||
if !rel.Model.embeddedIsh && !rel.RelatedModel.embeddedIsh {
|
||||
pk = prevModel.Fields[rel.FieldName].ColumnName
|
||||
fk = rel.RelatedModel.Fields[rel.RelatedModel.IDField].ColumnName
|
||||
} else if !rel.Model.embeddedIsh {
|
||||
pk = prevModel.Fields[prevModel.IDField].ColumnName
|
||||
fk = rel.RelatedModel.Fields[strings.TrimSuffix(rel.JoinField(), "ID")].ColumnName
|
||||
}
|
||||
ree = append(ree, rel)
|
||||
j2 := [3]string{
|
||||
rel.Model.Fields[rel.FieldName].ColumnName,
|
||||
rel.RelatedModel.TableName,
|
||||
fmt.Sprintf("%s.%s = %s.%s",
|
||||
rel.RelatedModel.TableName, fk,
|
||||
prevModel.TableName, pk),
|
||||
}
|
||||
|
||||
/*j2 := fmt.Sprintf("%s AS %s ON %s.%s = %s.%s",
|
||||
rel.RelatedModel.TableName,
|
||||
rel.Model.Fields[rel.FieldName].ColumnName,
|
||||
rel.RelatedModel.TableName, fk,
|
||||
prevModel.TableName, pk,
|
||||
)*/
|
||||
joins = append(joins, j2)
|
||||
prevModel = rel.RelatedModel
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func (q *Query) Populate(relation string) *Query {
|
||||
if relation == PopulateAll {
|
||||
for _, rel := range q.model.Relationships {
|
||||
if rel.Type == ManyToMany {
|
||||
mjs := m2mJoin(rel)
|
||||
for _, ajoin := range mjs {
|
||||
q.joins[rel] = [3]string{
|
||||
ajoin[0],
|
||||
ajoin[1],
|
||||
ajoin[2],
|
||||
}
|
||||
}
|
||||
//q.joins = append(q.joins, m2mJoin(rel)...)
|
||||
} else {
|
||||
alias, tn, cond := join(rel)
|
||||
q.joins[rel] = [3]string{
|
||||
alias,
|
||||
tn,
|
||||
cond,
|
||||
}
|
||||
//q.joins = append(q.joins, tn)
|
||||
}
|
||||
q.relatedModels[rel.RelatedModel.Name] = rel.RelatedModel
|
||||
}
|
||||
} else {
|
||||
if strings.Contains(relation, ".") {
|
||||
njs, rmodels := nestedJoin(q.model, relation)
|
||||
for i, m := range rmodels {
|
||||
curTuple := njs[i]
|
||||
q.joins[m] = [3]string{
|
||||
curTuple[0],
|
||||
curTuple[1],
|
||||
curTuple[2],
|
||||
}
|
||||
q.relatedModels[m.Model.Name] = m.Model
|
||||
}
|
||||
//q.joins = append(q.joins, njs...)
|
||||
} else {
|
||||
rel, ok := q.model.Relationships[relation]
|
||||
if ok {
|
||||
alias, tn, j := join(rel)
|
||||
q.joins[rel] = [3]string{
|
||||
alias,
|
||||
tn,
|
||||
j,
|
||||
}
|
||||
//q.joins = append(q.joins, tn)
|
||||
q.relatedModels[rel.RelatedModel.Name] = rel.RelatedModel
|
||||
}
|
||||
}
|
||||
}
|
||||
return q
|
||||
}
|
42
query_tail.go
Normal file
42
query_tail.go
Normal file
@ -0,0 +1,42 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"reflect"
|
||||
)
|
||||
|
||||
func (q *Query) Create(val any) (any, error) {
|
||||
_, err := q.model.insert(reflect.ValueOf(val), q, make(map[string]any))
|
||||
return val, err
|
||||
}
|
||||
|
||||
func (q *Query) Find() (any, error) {
|
||||
sql, args := q.buildSQL()
|
||||
fmt.Printf("[FIND] %s { %+v }\n", sql, args)
|
||||
if !q.engine.dryRun {
|
||||
rows, err := q.engine.conn.Query(q.ctx, sql, args...)
|
||||
defer rows.Close()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
rmaps, err := rowsToMaps(rows)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
wtype := q.model.Type
|
||||
for wtype.Kind() == reflect.Pointer {
|
||||
wtype = wtype.Elem()
|
||||
}
|
||||
return fillSlice(rmaps, wtype, q.engine.modelMap), nil
|
||||
}
|
||||
return make([]any, 0), nil
|
||||
}
|
||||
|
||||
func (q *Query) Update(val any, cond any, args ...any) error {
|
||||
if q.model != nil {
|
||||
return q.model.update(reflect.ValueOf(val), q, make(map[string]any))
|
||||
} else {
|
||||
return errors.New("Please select a model")
|
||||
}
|
||||
}
|
209
relationship.go
Normal file
209
relationship.go
Normal file
@ -0,0 +1,209 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type RelationshipType int
|
||||
|
||||
const (
|
||||
HasOne RelationshipType = iota
|
||||
HasMany
|
||||
ManyToMany
|
||||
)
|
||||
|
||||
type Relationship struct {
|
||||
Type RelationshipType
|
||||
Model *Model
|
||||
FieldName string
|
||||
Idx int
|
||||
RelatedType reflect.Type
|
||||
RelatedModel *Model
|
||||
Kind reflect.Kind // field kind (struct, slice, ...)
|
||||
m2mInverse *Relationship
|
||||
}
|
||||
|
||||
func (r *Relationship) JoinTable() string {
|
||||
return r.Model.TableName + "_" + r.RelatedModel.TableName
|
||||
}
|
||||
|
||||
func (r *Relationship) JoinField() string {
|
||||
isMany := r.Type == HasMany //|| r.Type == ManyToMany
|
||||
if isMany && r.Model.embeddedIsh {
|
||||
return r.Model.Name + r.FieldName + "ID"
|
||||
} else if isMany && !r.Model.embeddedIsh && r.m2mInverse == nil {
|
||||
return r.Model.Name + "ID"
|
||||
} else if r.Type == ManyToMany && !r.Model.embeddedIsh {
|
||||
return r.RelatedModel.Name + "ID"
|
||||
}
|
||||
return r.FieldName + "ID"
|
||||
}
|
||||
|
||||
func (r *Relationship) aliasThingy() string {
|
||||
return pascalToSnakeCase(r.Model.Name + "." + r.FieldName)
|
||||
}
|
||||
|
||||
func (r *Relationship) relatedAlias() string {
|
||||
return pascalToSnakeCase(r.RelatedModel.Name + "." + r.FieldName)
|
||||
}
|
||||
|
||||
func (r *Relationship) m2mIsh() bool {
|
||||
return r.Model.embeddedIsh && !r.RelatedModel.embeddedIsh && r.Type == HasMany
|
||||
}
|
||||
|
||||
func (r *Relationship) joinInsert(v reflect.Value, e *Query, pfk any) error {
|
||||
if r.Type != ManyToMany &&
|
||||
!r.m2mIsh() {
|
||||
return nil
|
||||
}
|
||||
ichild := v
|
||||
for ichild.Kind() == reflect.Ptr {
|
||||
ichild = ichild.Elem()
|
||||
}
|
||||
if ichild.Kind() == reflect.Struct {
|
||||
jtable := r.JoinTable()
|
||||
jargs := make([]any, 0)
|
||||
jcols := make([]string, 0)
|
||||
jcols = append(jcols, fmt.Sprintf("%s_%s",
|
||||
r.Model.TableName, pascalToSnakeCase(r.FieldName),
|
||||
))
|
||||
jargs = append(jargs, pfk)
|
||||
|
||||
jcols = append(jcols, r.RelatedModel.TableName+"_id")
|
||||
jargs = append(jargs, ichild.FieldByName(r.RelatedModel.IDField).Interface())
|
||||
var ecnt int
|
||||
e.tx.QueryRow(e.ctx,
|
||||
fmt.Sprintf("SELECT count(*) from %s where %s = $1 and %s = $2", r.JoinTable(), jcols[0], jcols[1]), jargs...).Scan(&ecnt)
|
||||
if ecnt > 0 {
|
||||
return nil
|
||||
}
|
||||
jsql := fmt.Sprintf("INSERT INTO %s (%s) VALUES ($1, $2)", jtable, strings.Join(jcols, ", "))
|
||||
fmt.Printf("[INSERT/JOIN] %s { %s }\n", jsql, logTrunc(jargs, 200))
|
||||
if !e.engine.dryRun {
|
||||
_ = e.tx.QueryRow(e.ctx, jsql, jargs...).Scan()
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *Relationship) joinDelete(pk, fk any, q *Query) error {
|
||||
jc := fmt.Sprintf("%s_%s", r.Model.TableName, pascalToSnakeCase(r.FieldName))
|
||||
ds := fmt.Sprintf("DELETE FROM %s where %s = $1 and %s = $2",
|
||||
r.JoinTable(), jc, r.RelatedModel.TableName+"_id")
|
||||
fmt.Printf("[DELETE/JOIN] %s { %s }\n", ds, logTrunc([]any{pk, fk}, 200))
|
||||
if !q.engine.dryRun {
|
||||
_, err := q.tx.Exec(q.ctx, ds, pk, fk)
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func parseRelationship(field reflect.StructField, modelMap map[string]*Model, outerType reflect.Type, idx int) *Relationship {
|
||||
rel := &Relationship{
|
||||
Model: modelMap[outerType.Name()],
|
||||
RelatedModel: modelMap[field.Type.Name()],
|
||||
RelatedType: field.Type,
|
||||
Idx: idx,
|
||||
Kind: field.Type.Kind(),
|
||||
FieldName: field.Name,
|
||||
}
|
||||
if rel.RelatedType.Kind() == reflect.Slice || rel.RelatedType.Kind() == reflect.Array {
|
||||
rel.RelatedType = rel.RelatedType.Elem()
|
||||
}
|
||||
if rel.RelatedModel == nil {
|
||||
if rel.RelatedType.Name() == "" {
|
||||
rt := rel.RelatedType
|
||||
for rt.Kind() == reflect.Ptr || rt.Kind() == reflect.Slice || rt.Kind() == reflect.Array {
|
||||
rel.RelatedType = rel.RelatedType.Elem()
|
||||
rt = rel.RelatedType
|
||||
}
|
||||
}
|
||||
rel.RelatedModel = modelMap[rel.RelatedType.Name()]
|
||||
if _, ok := modelMap[rel.RelatedType.Name()]; !ok {
|
||||
rel.RelatedModel = parseModel(reflect.New(rel.RelatedType).Interface())
|
||||
modelMap[rel.RelatedType.Name()] = rel.RelatedModel
|
||||
parseModelFields(rel.RelatedModel, modelMap)
|
||||
rel.RelatedModel.embeddedIsh = true
|
||||
}
|
||||
}
|
||||
switch field.Type.Kind() {
|
||||
case reflect.Struct:
|
||||
rel.Type = HasOne
|
||||
case reflect.Slice:
|
||||
rel.Type = HasMany
|
||||
}
|
||||
return rel
|
||||
}
|
||||
func addForeignKeyFields(ref *Relationship) {
|
||||
rf := ref.RelatedModel.Fields[ref.RelatedModel.IDField]
|
||||
if rf != nil {
|
||||
if !ref.RelatedModel.embeddedIsh && !ref.Model.embeddedIsh {
|
||||
ff := ref.Model.Fields[ref.FieldName]
|
||||
ff.ColumnType = rf.ColumnType
|
||||
ff.ColumnName = pascalToSnakeCase(ref.JoinField())
|
||||
ff.isForeignKey = true
|
||||
ff.fk = ref
|
||||
} else if !ref.Model.embeddedIsh {
|
||||
sid := strings.TrimSuffix(ref.JoinField(), "ID")
|
||||
ref.RelatedModel.Relationships[sid] = &Relationship{
|
||||
FieldName: sid,
|
||||
Type: HasOne,
|
||||
RelatedModel: ref.Model,
|
||||
Model: ref.RelatedModel,
|
||||
Kind: ref.RelatedModel.Type.Kind(),
|
||||
Idx: -1,
|
||||
RelatedType: ref.Model.Type,
|
||||
}
|
||||
ref.RelatedModel.addField(&Field{
|
||||
ColumnType: rf.ColumnType,
|
||||
ColumnName: pascalToSnakeCase(ref.JoinField()),
|
||||
Name: sid,
|
||||
isForeignKey: true,
|
||||
Type: rf.Type,
|
||||
Index: -1,
|
||||
fk: ref.RelatedModel.Relationships[sid],
|
||||
})
|
||||
} else if ref.Model.embeddedIsh && !ref.RelatedModel.embeddedIsh {
|
||||
|
||||
}
|
||||
} else {
|
||||
ref.RelatedModel.addField(&Field{
|
||||
Name: "ID",
|
||||
ColumnName: "id",
|
||||
ColumnType: "bigserial",
|
||||
PrimaryKey: true,
|
||||
Type: ref.RelatedType,
|
||||
Index: -1,
|
||||
AutoIncrement: true,
|
||||
})
|
||||
ff := ref.Model.Fields[ref.FieldName]
|
||||
ff.ColumnType = "bigint"
|
||||
ff.ColumnName = pascalToSnakeCase(ref.RelatedModel.Name + "ID")
|
||||
ff.isForeignKey = true
|
||||
ff.fk = ref
|
||||
ref.RelatedModel.IDField = "ID"
|
||||
/*
|
||||
nn := ref.Model.Name + "ID"
|
||||
ref.RelatedModel.Relationships[ref.Model.Name] = &Relationship{
|
||||
Type: HasOne,
|
||||
RelatedModel: ref.Model,
|
||||
Model: ref.RelatedModel,
|
||||
Idx: 65536,
|
||||
Kind: ref.RelatedModel.Type.Kind(),
|
||||
RelatedType: ref.RelatedModel.Type,
|
||||
FieldName: nn,
|
||||
}
|
||||
ref.RelatedModel.addField(&Field{
|
||||
Name: nn,
|
||||
Type: ref.Model.Type,
|
||||
fk: ref.RelatedModel.Relationships[nn],
|
||||
ColumnName: pascalToSnakeCase(nn),
|
||||
Index: -1,
|
||||
ColumnType: ref.Model.Fields[ref.Model.IDField].ColumnType,
|
||||
isForeignKey: true,
|
||||
})*/
|
||||
|
||||
}
|
||||
}
|
85
scan.go
Normal file
85
scan.go
Normal file
@ -0,0 +1,85 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"github.com/jackc/pgx/v5"
|
||||
"reflect"
|
||||
)
|
||||
|
||||
func rowsToMaps(rows pgx.Rows) ([]map[string]any, error) {
|
||||
var result []map[string]any
|
||||
fieldDescs := rows.FieldDescriptions()
|
||||
for rows.Next() {
|
||||
m := make(map[string]any)
|
||||
scanArgs := make([]any, len(fieldDescs))
|
||||
for i := range fieldDescs {
|
||||
var v any
|
||||
scanArgs[i] = &v
|
||||
}
|
||||
if err := rows.Scan(scanArgs...); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
for i, fd := range fieldDescs {
|
||||
name := fd.Name
|
||||
m[name] = *(scanArgs[i].(*any))
|
||||
}
|
||||
result = append(result, m)
|
||||
}
|
||||
return result, rows.Err()
|
||||
}
|
||||
|
||||
func fillNested(row map[string]any, t reflect.Type, mm *ModelMap, depth, maxDepth int) any {
|
||||
cm := mm.Map[t.Name()]
|
||||
pp := reflect.New(cm.Type).Elem()
|
||||
for _, field := range cm.Fields {
|
||||
_, alias := field.alias()
|
||||
if v, ok := row[alias]; ok && !field.isForeignKey {
|
||||
reflectSet(pp.Field(field.Index), v)
|
||||
}
|
||||
}
|
||||
for _, rel := range cm.Relationships {
|
||||
if rel.Idx > -1 && rel.Idx < pp.NumField() {
|
||||
relType := rel.RelatedModel.Type
|
||||
for relType.Kind() == reflect.Pointer {
|
||||
relType = relType.Elem()
|
||||
}
|
||||
nv := reflect.New(relType)
|
||||
if rel.Kind == reflect.Struct || rel.Kind == reflect.Pointer {
|
||||
if depth < maxDepth {
|
||||
nv = reflect.ValueOf(fillNested(row, relType, mm, depth+1, maxDepth))
|
||||
}
|
||||
if rel.Kind != reflect.Pointer && nv.Kind() == reflect.Pointer {
|
||||
nv = nv.Elem()
|
||||
}
|
||||
reflectSet(pp.Field(rel.Idx), nv)
|
||||
} else if rel.Kind == reflect.Slice || rel.Kind == reflect.Array {
|
||||
relType2 := relType
|
||||
for relType2.Kind() == reflect.Slice || relType2.Kind() == reflect.Array {
|
||||
relType2 = relType2.Elem()
|
||||
}
|
||||
if depth < maxDepth {
|
||||
nv = reflect.ValueOf(fillNested(row, relType2, mm, depth+1, maxDepth))
|
||||
}
|
||||
if nv.Kind() == reflect.Pointer {
|
||||
nv = nv.Elem()
|
||||
}
|
||||
reflectSet(pp.Field(rel.Idx), reflect.Append(pp.Field(rel.Idx), nv))
|
||||
}
|
||||
}
|
||||
}
|
||||
return pp.Interface()
|
||||
}
|
||||
|
||||
// fillSlice - note that it's the caller's responsibility to indirect
|
||||
// the type in `t`.
|
||||
func fillSlice(rows []map[string]any, t reflect.Type, mm *ModelMap) any {
|
||||
pslice := reflect.MakeSlice(reflect.SliceOf(t), 0, 0)
|
||||
rt := t
|
||||
for rt.Kind() == reflect.Ptr {
|
||||
rt = rt.Elem()
|
||||
}
|
||||
for _, row := range rows {
|
||||
pp := fillNested(row, rt, mm, 0, 10)
|
||||
pslice = reflect.Append(pslice, reflect.ValueOf(pp))
|
||||
}
|
||||
return pslice.Interface()
|
||||
}
|
55
test_main.go
Normal file
55
test_main.go
Normal file
@ -0,0 +1,55 @@
|
||||
package orm
|
||||
|
||||
import "fmt"
|
||||
|
||||
const do_bootstrap = true
|
||||
|
||||
func TestMain() {
|
||||
e, err := Open("postgres://testbed_user:123@localhost/testbed_i_think")
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
e.Models(user{}, story{}, band{}, role{})
|
||||
if do_bootstrap {
|
||||
|
||||
err = e.Migrate()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
s := iti_multi()
|
||||
u := &author
|
||||
u.Favs.Authors = append(u.Favs.Authors, friend)
|
||||
_, err = e.Model(&user{}).Create(&friend)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
_, err = e.Model(&user{}).Create(u)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
_, err = e.Model(&band{}).Create(&bodom)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
_, err = e.Model(&band{}).Create(&diamondHead)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
_, err = e.Model(&story{}).Create(s)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
s.Downloads = s.Downloads + 1
|
||||
err = e.Model(&story{}).Update(s, nil)
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
}
|
||||
ns, err := e.Model(&story{}).Where(&story{
|
||||
ID: 1,
|
||||
}).Populate(PopulateAll).Find()
|
||||
if err != nil {
|
||||
panic(err)
|
||||
}
|
||||
fmt.Printf("%+v", ns)
|
||||
}
|
163
testing.go
163
testing.go
@ -1,48 +1,52 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"github.com/stretchr/testify/assert"
|
||||
"math/rand/v2"
|
||||
"strings"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/go-loremipsum/loremipsum"
|
||||
)
|
||||
|
||||
type chapter struct {
|
||||
ID bson.ObjectID `json:"_id"`
|
||||
Title string `json:"chapterTitle" form:"chapterTitle"`
|
||||
ChapterID int `json:"chapterID" autoinc:"chapters"`
|
||||
Index int `json:"index" form:"index"`
|
||||
Words int `json:"words"`
|
||||
Notes string `json:"notes" form:"notes"`
|
||||
Genre []string `json:"genre" form:"genre"`
|
||||
Bands []band `json:"bands" ref:"band,bands"`
|
||||
Characters []string `json:"characters" form:"characters"`
|
||||
Relationships [][]string `json:"relationships" form:"relationships"`
|
||||
Adult bool `json:"adult" form:"adult"`
|
||||
Summary string `json:"summary" form:"summary"`
|
||||
Hidden bool `json:"hidden" form:"hidden"`
|
||||
LoggedInOnly bool `json:"loggedInOnly" form:"loggedInOnly"`
|
||||
Posted time.Time `json:"datePosted"`
|
||||
FileName string `json:"fileName"`
|
||||
Text string `json:"text" gridfs:"story_text,/stories/{{.ChapterID}}.txt"`
|
||||
ChapterID int64 `json:"chapterID" d:"pk:t;"`
|
||||
Title string `json:"chapterTitle" form:"chapterTitle"`
|
||||
Index int `json:"index" form:"index"`
|
||||
Words int `json:"words"`
|
||||
Notes string `json:"notes" form:"notes"`
|
||||
Genre []string `json:"genre" form:"genre" d:"type:text[]"`
|
||||
Bands []band `json:"bands" ref:"band,bands"`
|
||||
Characters []string `json:"characters" form:"characters" d:"type:text[]"`
|
||||
Relationships [][]string `json:"relationships" form:"relationships" d:"type:text[][]"`
|
||||
Adult bool `json:"adult" form:"adult"`
|
||||
Summary string `json:"summary" form:"summary"`
|
||||
Hidden bool `json:"hidden" form:"hidden"`
|
||||
LoggedInOnly bool `json:"loggedInOnly" form:"loggedInOnly"`
|
||||
Posted time.Time `json:"datePosted"`
|
||||
FileName string `json:"fileName" d:"-"`
|
||||
Text string `json:"text" d:"column:content" gridfs:"story_text,/stories/{{.ChapterID}}.txt"`
|
||||
}
|
||||
|
||||
type band struct {
|
||||
ID int64 `json:"_id"`
|
||||
Document `json:",inline" d:"table:bands"`
|
||||
ID int64 `json:"_id" d:"pk;"`
|
||||
Name string `json:"name" form:"name"`
|
||||
Locked bool `json:"locked" form:"locked"`
|
||||
Characters []string `json:"characters" form:"characters"`
|
||||
Characters []string `json:"characters" form:"characters" d:"type:text[]"`
|
||||
}
|
||||
type user struct {
|
||||
ID int64 `json:"_id"`
|
||||
Document `json:",inline" d:"table:users"`
|
||||
ID int64 `json:"_id" d:"pk;"`
|
||||
Username string `json:"username"`
|
||||
Favs favs `json:"favs" ref:"user"`
|
||||
Roles []role
|
||||
}
|
||||
|
||||
type role struct {
|
||||
ID int64 `d:"pk"`
|
||||
Name string
|
||||
Users []user
|
||||
}
|
||||
|
||||
type favs struct {
|
||||
@ -50,10 +54,10 @@ type favs struct {
|
||||
Authors []user
|
||||
}
|
||||
type story struct {
|
||||
ID int64 `json:"_id"`
|
||||
Document `json:",inline" coll:"stories"`
|
||||
Document `json:",inline" d:"table:stories"`
|
||||
ID int64 `json:"_id" d:"pk;"`
|
||||
Title string `json:"title" form:"title"`
|
||||
Author *user `json:"author" ref:"user"`
|
||||
Author user `json:"author" ref:"user"`
|
||||
CoAuthor *user `json:"coAuthor" ref:"user"`
|
||||
Chapters []chapter `json:"chapters"`
|
||||
Recs int `json:"recs"`
|
||||
@ -69,54 +73,23 @@ type somethingWithNestedChapters struct {
|
||||
NestedText string `json:"text" gridfs:"nested_text,/nested/{{.ID}}.txt"`
|
||||
}
|
||||
|
||||
func (s *somethingWithNestedChapters) Id() any {
|
||||
return s.ID
|
||||
}
|
||||
|
||||
func (s *somethingWithNestedChapters) SetId(id any) {
|
||||
s.ID = id.(int64)
|
||||
}
|
||||
|
||||
func (s *story) Id() any {
|
||||
return s.ID
|
||||
}
|
||||
|
||||
func (s *band) Id() any {
|
||||
return s.ID
|
||||
}
|
||||
func (s *user) Id() any {
|
||||
return s.ID
|
||||
}
|
||||
|
||||
func (s *story) SetId(id any) {
|
||||
s.ID = id.(int64)
|
||||
//var t IDocument =s
|
||||
}
|
||||
|
||||
func (s *band) SetId(id any) {
|
||||
s.ID = id.(int64)
|
||||
}
|
||||
|
||||
func (s *user) SetId(id any) {
|
||||
s.ID = id.(int64)
|
||||
var friend = user{
|
||||
Username: "DarQuiel7",
|
||||
ID: 83378,
|
||||
}
|
||||
|
||||
var author = user{
|
||||
Username: "tablet.exe",
|
||||
Favs: []user{
|
||||
{
|
||||
Username: "DarQuiel7",
|
||||
},
|
||||
},
|
||||
ID: 85783,
|
||||
}
|
||||
|
||||
func genChaps(single bool) []chapter {
|
||||
func genChaps(single bool, aceil int) []chapter {
|
||||
var ret []chapter
|
||||
var ceil int
|
||||
if single {
|
||||
ceil = 1
|
||||
} else {
|
||||
ceil = 5
|
||||
ceil = aceil
|
||||
}
|
||||
emptyRel := make([][]string, 0)
|
||||
emptyRel = append(emptyRel, make([]string, 0))
|
||||
@ -140,8 +113,8 @@ func genChaps(single bool) []chapter {
|
||||
|
||||
for i := 0; i < ceil; i++ {
|
||||
spf := fmt.Sprintf("%d.md", i+1)
|
||||
ret = append(ret, chapter{
|
||||
ID: bson.NewObjectID(),
|
||||
c := chapter{
|
||||
ChapterID: int64(i + 1),
|
||||
Title: fmt.Sprintf("-%d-", i+1),
|
||||
Index: i + 1,
|
||||
Words: 50,
|
||||
@ -156,7 +129,19 @@ func genChaps(single bool) []chapter {
|
||||
LoggedInOnly: true,
|
||||
FileName: spf,
|
||||
Text: strings.Join(l.ParagraphList(10), "\n\n"),
|
||||
})
|
||||
Posted: time.Now().Add(time.Hour * time.Duration(int64(24*7*i))),
|
||||
}
|
||||
{
|
||||
randMin := max(i+1, 1)
|
||||
randMax := min(i+1, randMin+1)
|
||||
mod1 := max(rand.IntN(randMin), 1)
|
||||
mod2 := max(rand.IntN(randMax+1), 1)
|
||||
if (mod1%mod2 == 0 || (mod1%mod2) == 2) && i > 0 {
|
||||
c.Bands = append(c.Bands, bodom)
|
||||
}
|
||||
}
|
||||
|
||||
ret = append(ret, c)
|
||||
}
|
||||
|
||||
return ret
|
||||
@ -165,51 +150,35 @@ func genChaps(single bool) []chapter {
|
||||
func doSomethingWithNested() somethingWithNestedChapters {
|
||||
l := loremipsum.New()
|
||||
swnc := somethingWithNestedChapters{
|
||||
Chapters: genChaps(false),
|
||||
Chapters: genChaps(false, 7),
|
||||
NestedText: strings.Join(l.ParagraphList(15), "\n\n"),
|
||||
}
|
||||
return swnc
|
||||
}
|
||||
func iti_single() story {
|
||||
return story{
|
||||
func iti_single() *story {
|
||||
return &story{
|
||||
Title: "title",
|
||||
Completed: true,
|
||||
Chapters: genChaps(true),
|
||||
Author: author,
|
||||
Chapters: genChaps(true, 0),
|
||||
}
|
||||
}
|
||||
|
||||
func iti_multi() story {
|
||||
return story{
|
||||
func iti_multi() *story {
|
||||
return &story{
|
||||
Title: "Brian Tatler Fucked and Abused Sean Harris",
|
||||
Completed: false,
|
||||
Chapters: genChaps(false),
|
||||
Author: author,
|
||||
Chapters: genChaps(false, 5),
|
||||
}
|
||||
}
|
||||
|
||||
func iti_blank() story {
|
||||
func iti_blank() *story {
|
||||
t := iti_single()
|
||||
t.Chapters = make([]chapter, 0)
|
||||
return t
|
||||
}
|
||||
|
||||
func initTest() {
|
||||
uri := "mongodb://127.0.0.1:27017"
|
||||
db := "rockfic_ormTest"
|
||||
ic, _ := mongo.Connect(options.Client().ApplyURI(uri))
|
||||
ic.Database(db).Drop(context.TODO())
|
||||
colls, _ := ic.Database(db).ListCollectionNames(context.TODO(), bson.M{})
|
||||
if len(colls) < 1 {
|
||||
mdb := ic.Database(db)
|
||||
mdb.CreateCollection(context.TODO(), "bands")
|
||||
mdb.CreateCollection(context.TODO(), "stories")
|
||||
mdb.CreateCollection(context.TODO(), "users")
|
||||
}
|
||||
defer ic.Disconnect(context.TODO())
|
||||
Connect(uri, db)
|
||||
author.ID = 696969
|
||||
ModelRegistry.Model(band{}, user{}, story{})
|
||||
}
|
||||
|
||||
var metallica = band{
|
||||
ID: 1,
|
||||
Name: "Metallica",
|
||||
@ -247,13 +216,3 @@ var bodom = band{
|
||||
"Alexander Kuoppala",
|
||||
},
|
||||
}
|
||||
|
||||
func saveDoc(t *testing.T, doc IDocument) {
|
||||
err := doc.Save()
|
||||
assert.Nil(t, err)
|
||||
}
|
||||
|
||||
func createAndSave(t *testing.T, doc IDocument) {
|
||||
mdl := Create(doc).(IDocument)
|
||||
saveDoc(t, mdl)
|
||||
}
|
||||
|
7
tests/main.go
Normal file
7
tests/main.go
Normal file
@ -0,0 +1,7 @@
|
||||
package main
|
||||
|
||||
import "rockfic.com/orm"
|
||||
|
||||
func main() {
|
||||
orm.TestMain()
|
||||
}
|
95
utils.go
Normal file
95
utils.go
Normal file
@ -0,0 +1,95 @@
|
||||
package orm
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"regexp"
|
||||
"strings"
|
||||
)
|
||||
|
||||
var pascalRegex = regexp.MustCompile(`(?P<lowercase>[a-z])(?P<uppercase>[A-Z])`)
|
||||
var nonWordRegex = regexp.MustCompile(`[^a-zA-Z0-9_]`)
|
||||
|
||||
func pascalToSnakeCase(str string) string {
|
||||
step1 := pascalRegex.ReplaceAllString(str, `${lowercase}_${uppercase}`)
|
||||
step2 := nonWordRegex.ReplaceAllString(step1, "_")
|
||||
return strings.ToLower(step2)
|
||||
}
|
||||
|
||||
func canConvertTo[T any](thisType reflect.Type) bool {
|
||||
return thisType.ConvertibleTo(reflect.TypeFor[T]()) ||
|
||||
thisType.ConvertibleTo(reflect.TypeFor[*T]()) ||
|
||||
strings.TrimPrefix(thisType.Name(), "*") == strings.TrimPrefix(reflect.TypeFor[T]().Name(), "*")
|
||||
}
|
||||
|
||||
func parseTags(t string) map[string]string {
|
||||
tags := strings.Split(t, ";")
|
||||
m := make(map[string]string)
|
||||
for _, tag := range tags {
|
||||
field := strings.Split(tag, ":")
|
||||
if len(field) < 2 {
|
||||
m[strings.ToLower(field[0])] = "t"
|
||||
} else {
|
||||
m[strings.ToLower(field[0])] = field[1]
|
||||
}
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
func capitalizeFirst(str string) string {
|
||||
firstChar := strings.ToUpper(string([]byte{str[0]}))
|
||||
return firstChar + string(str[1:])
|
||||
}
|
||||
|
||||
func serialToRegular(str string) string {
|
||||
return strings.ReplaceAll(strings.ToLower(str), "serial", "int")
|
||||
}
|
||||
func isZero(v reflect.Value) bool {
|
||||
switch v.Kind() {
|
||||
case reflect.String:
|
||||
return v.String() == ""
|
||||
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
|
||||
return v.Int() == 0
|
||||
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
|
||||
return v.Uint() == 0
|
||||
case reflect.Bool:
|
||||
return !v.Bool()
|
||||
case reflect.Ptr, reflect.Interface:
|
||||
return v.IsNil()
|
||||
}
|
||||
return v.IsZero()
|
||||
}
|
||||
func reflectSet(f reflect.Value, v any) {
|
||||
if !f.CanSet() || v == nil {
|
||||
return
|
||||
}
|
||||
switch f.Kind() {
|
||||
case reflect.Int, reflect.Int64:
|
||||
switch val := v.(type) {
|
||||
case int64:
|
||||
f.SetInt(val)
|
||||
case int32:
|
||||
f.SetInt(int64(val))
|
||||
case int:
|
||||
f.SetInt(int64(val))
|
||||
case uint64:
|
||||
f.SetInt(int64(val))
|
||||
}
|
||||
case reflect.String:
|
||||
if s, ok := v.(string); ok {
|
||||
f.SetString(s)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func logTrunc(v any, length int) string {
|
||||
if length < 5 {
|
||||
length = 5
|
||||
}
|
||||
str := fmt.Sprintf("%+v", v)
|
||||
trunced := str[:min(length, len(str))]
|
||||
if len(trunced) < len(str) {
|
||||
trunced += "..."
|
||||
}
|
||||
return trunced
|
||||
}
|
Loading…
x
Reference in New Issue
Block a user