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select_join.go
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select_join.go
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package crate
import "strings"
type join interface {
runJoin(b *strings.Builder, args *[]any)
}
type Joins []join
func (j Joins) runJoin(b *strings.Builder, args *[]any) {
for _, join := range j {
join.runJoin(b, args)
}
}
type InnerJoin struct {
Table queryable
Condition Condition
}
func (j InnerJoin) runJoin(b *strings.Builder, args *[]any) {
b.WriteString("INNER JOIN ")
j.Table.buildQuery(b, args)
b.WriteString(" ON ")
j.Condition.run(b, args)
b.WriteByte('\n')
}
type OuterJoin InnerJoin
func (j OuterJoin) runJoin(b *strings.Builder, args *[]any) {
b.WriteString("OUTER JOIN ")
j.Table.buildQuery(b, args)
b.WriteString(" ON ")
j.Condition.run(b, args)
b.WriteByte('\n')
}
type LeftJoin InnerJoin
func (j LeftJoin) runJoin(b *strings.Builder, args *[]any) {
b.WriteString("LEFT JOIN ")
j.Table.buildQuery(b, args)
b.WriteString(" ON ")
j.Condition.run(b, args)
b.WriteByte('\n')
}
type RightJoin InnerJoin
func (j RightJoin) runJoin(b *strings.Builder, args *[]any) {
b.WriteString("RIGHT JOIN ")
j.Table.buildQuery(b, args)
b.WriteString(" ON ")
j.Condition.run(b, args)
b.WriteByte('\n')
}