35 lines
1.0 KiB
Go
35 lines
1.0 KiB
Go
// +build go1.8
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package gorm
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import "context"
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func (s postgres) HasIndex(tableName string, indexName string) bool {
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var count int
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s.db.QueryRowContext(context.Background(), queryPostgresHasIndex, tableName, indexName).Scan(&count)
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return count > 0
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}
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func (s postgres) HasForeignKey(tableName string, foreignKeyName string) bool {
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var count int
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s.db.QueryRowContext(context.Background(), queryPostgresHasForeignKey, tableName, foreignKeyName).Scan(&count)
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return count > 0
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}
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func (s postgres) HasTable(tableName string) bool {
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var count int
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s.db.QueryRowContext(context.Background(), queryPostgresHasTable, tableName).Scan(&count)
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return count > 0
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}
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func (s postgres) HasColumn(tableName string, columnName string) bool {
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var count int
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s.db.QueryRowContext(context.Background(), queryPostgresHasColumn, tableName, columnName).Scan(&count)
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return count > 0
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}
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func (s postgres) CurrentDatabase() (name string) {
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s.db.QueryRowContext(context.Background(), queryPostgresCurrentDatabase).Scan(&name)
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return
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}
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