45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
// +build go1.8
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package gorm
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import (
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"context"
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"fmt"
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)
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func (s sqlite3) HasIndex(tableName string, indexName string) bool {
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var count int
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s.db.QueryRowContext(context.Background(), fmt.Sprintf(querySQLite3HasIndex, indexName), tableName).Scan(&count)
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return count > 0
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}
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func (s sqlite3) HasTable(tableName string) bool {
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var count int
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s.db.QueryRowContext(context.Background(), querySQLite3HasTable, tableName).Scan(&count)
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return count > 0
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}
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func (s sqlite3) HasColumn(tableName string, columnName string) bool {
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var count int
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s.db.QueryRowContext(context.Background(), fmt.Sprintf(querySQLite3HasColumn, columnName, columnName), tableName).Scan(&count)
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return count > 0
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}
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func (s sqlite3) CurrentDatabase() (name string) {
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var (
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ifaces = make([]interface{}, 3)
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pointers = make([]*string, 3)
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i int
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)
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for i = 0; i < 3; i++ {
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ifaces[i] = &pointers[i]
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}
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if err := s.db.QueryRowContext(context.Background(), querySQLite3CurrentDatabase).Scan(ifaces...); err != nil {
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return
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}
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if pointers[1] != nil {
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name = *pointers[1]
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}
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return
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}
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