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38 lines
737 B
38 lines
737 B
package clause |
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type Update struct { |
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Modifier string |
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Table Table |
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} |
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// Name update clause name |
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func (update Update) Name() string { |
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return "UPDATE" |
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} |
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// Build build update clause |
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func (update Update) Build(builder Builder) { |
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if update.Modifier != "" { |
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builder.WriteString(update.Modifier) |
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builder.WriteByte(' ') |
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} |
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if update.Table.Name == "" { |
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builder.WriteQuoted(currentTable) |
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} else { |
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builder.WriteQuoted(update.Table) |
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} |
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} |
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// MergeClause merge update clause |
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func (update Update) MergeClause(clause *Clause) { |
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if v, ok := clause.Expression.(Update); ok { |
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if update.Modifier == "" { |
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update.Modifier = v.Modifier |
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} |
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if update.Table.Name == "" { |
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update.Table = v.Table |
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} |
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} |
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clause.Expression = update |
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}
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