forked from mirror/gorm
33 lines
620 B
Go
33 lines
620 B
Go
package clause
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// Select select attrs when querying, updating, creating
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type Select struct {
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Columns []Column
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Omits []Column
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}
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func (s Select) Name() string {
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return "SELECT"
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}
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func (s Select) Build(builder Builder) {
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if len(s.Columns) > 0 {
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for idx, column := range s.Columns {
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if idx > 0 {
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builder.WriteByte(',')
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}
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builder.WriteQuoted(column)
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}
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} else {
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builder.WriteByte('*')
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}
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}
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func (s Select) MergeClause(clause *Clause) {
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if v, ok := clause.Expression.(Select); ok {
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s.Columns = append(v.Columns, s.Columns...)
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s.Omits = append(v.Omits, s.Omits...)
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}
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clause.Expression = s
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}
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