38 lines
		
	
	
		
			630 B
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			38 lines
		
	
	
		
			630 B
		
	
	
	
		
			Go
		
	
	
	
	
	
package clause
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// From from clause
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type From struct {
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	Tables []Table
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	Joins  []Join
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}
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// Name from clause name
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func (from From) Name() string {
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	return "FROM"
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}
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// Build build from clause
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func (from From) Build(builder Builder) {
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	if len(from.Tables) > 0 {
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		for idx, table := range from.Tables {
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			if idx > 0 {
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				builder.WriteByte(',')
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			}
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			builder.WriteQuoted(table)
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		}
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	} else {
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		builder.WriteQuoted(currentTable)
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	}
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	for _, join := range from.Joins {
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		builder.WriteByte(' ')
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		join.Build(builder)
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	}
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}
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// MergeClause merge from clause
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func (from From) MergeClause(clause *Clause) {
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	clause.Expression = from
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}
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