49 lines
897 B
Go
49 lines
897 B
Go
package builder
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
)
|
|
|
|
func (b *Builder) selectWriteTo(w Writer) error {
|
|
if len(b.tableName) <= 0 {
|
|
return errors.New("no table indicated")
|
|
}
|
|
|
|
if _, err := fmt.Fprint(w, "SELECT "); err != nil {
|
|
return err
|
|
}
|
|
if len(b.selects) > 0 {
|
|
for i, s := range b.selects {
|
|
if _, err := fmt.Fprint(w, s); err != nil {
|
|
return err
|
|
}
|
|
if i != len(b.selects)-1 {
|
|
if _, err := fmt.Fprint(w, ","); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
if _, err := fmt.Fprint(w, "*"); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if _, err := fmt.Fprintf(w, " FROM %s", b.tableName); err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, v := range b.joins {
|
|
fmt.Fprintf(w, " %s JOIN %s ON ", v.joinType, v.joinTable)
|
|
if err := v.joinCond.WriteTo(w); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
if _, err := fmt.Fprint(w, " WHERE "); err != nil {
|
|
return err
|
|
}
|
|
|
|
return b.cond.WriteTo(w)
|
|
}
|