gorm/callbacks/query.go

54 lines
1.2 KiB
Go

package callbacks
import (
"reflect"
"github.com/jinzhu/gorm"
"github.com/jinzhu/gorm/clause"
)
func Query(db *gorm.DB) {
if db.Statement.SQL.String() == "" {
db.Statement.AddClauseIfNotExists(clause.Select{})
db.Statement.AddClauseIfNotExists(clause.From{})
db.Statement.Build("SELECT", "FROM", "WHERE", "GROUP BY", "ORDER BY", "LIMIT", "FOR")
}
rows, err := db.DB.QueryContext(db.Context, db.Statement.SQL.String(), db.Statement.Vars...)
if err != nil {
db.AddError(err)
return
}
defer rows.Close()
Scan(rows, db)
}
func Preload(db *gorm.DB) {
}
func AfterQuery(db *gorm.DB) {
if db.Statement.Schema != nil && db.Statement.Schema.AfterFind {
callMethod := func(value interface{}) bool {
if db.Statement.Schema.AfterFind {
if i, ok := value.(gorm.AfterFindInterface); ok {
i.AfterFind(db)
return true
}
}
return false
}
if ok := callMethod(db.Statement.Dest); !ok {
switch db.Statement.ReflectValue.Kind() {
case reflect.Slice, reflect.Array:
for i := 0; i <= db.Statement.ReflectValue.Len(); i++ {
callMethod(db.Statement.ReflectValue.Index(i).Interface())
}
case reflect.Struct:
callMethod(db.Statement.ReflectValue.Interface())
}
}
}
}