mirror of https://github.com/go-gorm/gorm.git
Fix compile error for association
This commit is contained in:
Jinzhu
parent
a29230c86f
commit
dc428d2364
171
association.go
171
association.go
|
|
@ -4,11 +4,11 @@ import (
|
|||
"errors"
|
||||
"fmt"
|
||||
"reflect"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type Association struct {
|
||||
Scope *Scope
|
||||
PrimaryKey interface{}
|
||||
Column string
|
||||
Error error
|
||||
Field *Field
|
||||
|
|
@ -45,39 +45,23 @@ func (association *Association) Append(values ...interface{}) *Association {
|
|||
return association.setErr(scope.db.Error)
|
||||
}
|
||||
|
||||
func (association *Association) getPrimaryKeys(values ...interface{}) []interface{} {
|
||||
primaryKeys := []interface{}{}
|
||||
scope := association.Scope
|
||||
|
||||
for _, value := range values {
|
||||
reflectValue := reflect.Indirect(reflect.ValueOf(value))
|
||||
if reflectValue.Kind() == reflect.Slice {
|
||||
for i := 0; i < reflectValue.Len(); i++ {
|
||||
if primaryField := scope.New(reflectValue.Index(i).Interface()).PrimaryField(); !primaryField.IsBlank {
|
||||
primaryKeys = append(primaryKeys, primaryField.Field.Interface())
|
||||
}
|
||||
}
|
||||
} else if reflectValue.Kind() == reflect.Struct {
|
||||
if primaryField := scope.New(value).PrimaryField(); !primaryField.IsBlank {
|
||||
primaryKeys = append(primaryKeys, primaryField.Field.Interface())
|
||||
}
|
||||
}
|
||||
}
|
||||
return primaryKeys
|
||||
}
|
||||
|
||||
func (association *Association) Delete(values ...interface{}) *Association {
|
||||
primaryKeys := association.getPrimaryKeys(values...)
|
||||
|
||||
if len(primaryKeys) == 0 {
|
||||
association.setErr(errors.New("no primary key found"))
|
||||
} else {
|
||||
scope := association.Scope
|
||||
relationship := association.Field.Relationship
|
||||
|
||||
// many to many
|
||||
if relationship.Kind == "many_to_many" {
|
||||
sql := fmt.Sprintf("%v = ? AND %v IN (?)", scope.Quote(relationship.ForeignDBName), scope.Quote(relationship.AssociationForeignDBName))
|
||||
query := scope.NewDB().Where(sql, association.PrimaryKey, primaryKeys)
|
||||
query := scope.NewDB()
|
||||
for idx, foreignKey := range relationship.ForeignDBNames {
|
||||
if field, ok := scope.FieldByName(relationship.ForeignFieldNames[idx]); ok {
|
||||
query = query.Where(fmt.Sprintf("%v = ?", scope.Quote(foreignKey)), field.Field.Interface())
|
||||
}
|
||||
}
|
||||
|
||||
primaryKeys := association.getPrimaryKeys(relationship.AssociationForeignDBNames, values...)
|
||||
sql := fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.AssociationForeignDBNames), toQueryMarks(primaryKeys))
|
||||
query = query.Where(sql, toQueryValues(primaryKeys)...)
|
||||
|
||||
if err := relationship.JoinTableHandler.Delete(relationship.JoinTableHandler, query, relationship); err == nil {
|
||||
leftValues := reflect.Zero(association.Field.Field.Type())
|
||||
for i := 0; i < association.Field.Field.Len(); i++ {
|
||||
|
|
@ -99,7 +83,6 @@ func (association *Association) Delete(values ...interface{}) *Association {
|
|||
} else {
|
||||
association.setErr(errors.New("delete only support many to many"))
|
||||
}
|
||||
}
|
||||
return association
|
||||
}
|
||||
|
||||
|
|
@ -109,12 +92,12 @@ func (association *Association) Replace(values ...interface{}) *Association {
|
|||
if relationship.Kind == "many_to_many" {
|
||||
field := association.Field.Field
|
||||
|
||||
oldPrimaryKeys := association.getPrimaryKeys(field.Interface())
|
||||
oldPrimaryKeys := association.getPrimaryKeys(relationship.AssociationForeignDBNames, field.Interface())
|
||||
association.Field.Set(reflect.Zero(association.Field.Field.Type()))
|
||||
association.Append(values...)
|
||||
newPrimaryKeys := association.getPrimaryKeys(field.Interface())
|
||||
newPrimaryKeys := association.getPrimaryKeys(relationship.AssociationForeignDBNames, field.Interface())
|
||||
|
||||
var addedPrimaryKeys = []interface{}{}
|
||||
var addedPrimaryKeys = [][]interface{}{}
|
||||
for _, newKey := range newPrimaryKeys {
|
||||
hasEqual := false
|
||||
for _, oldKey := range oldPrimaryKeys {
|
||||
|
|
@ -127,13 +110,21 @@ func (association *Association) Replace(values ...interface{}) *Association {
|
|||
addedPrimaryKeys = append(addedPrimaryKeys, newKey)
|
||||
}
|
||||
}
|
||||
for _, primaryKey := range association.getPrimaryKeys(values...) {
|
||||
|
||||
for _, primaryKey := range association.getPrimaryKeys(relationship.AssociationForeignDBNames, values...) {
|
||||
addedPrimaryKeys = append(addedPrimaryKeys, primaryKey)
|
||||
}
|
||||
|
||||
if len(addedPrimaryKeys) > 0 {
|
||||
sql := fmt.Sprintf("%v = ? AND %v NOT IN (?)", scope.Quote(relationship.ForeignDBName), scope.Quote(relationship.AssociationForeignDBName))
|
||||
query := scope.NewDB().Where(sql, association.PrimaryKey, addedPrimaryKeys)
|
||||
query := scope.NewDB()
|
||||
for idx, foreignKey := range relationship.ForeignDBNames {
|
||||
if field, ok := scope.FieldByName(relationship.ForeignFieldNames[idx]); ok {
|
||||
query = query.Where(fmt.Sprintf("%v = ?", scope.Quote(foreignKey)), field.Field.Interface())
|
||||
}
|
||||
}
|
||||
|
||||
sql := fmt.Sprintf("%v IN (%v)", toQueryCondition(scope, relationship.AssociationForeignDBNames), toQueryMarks(addedPrimaryKeys))
|
||||
query = query.Where(sql, toQueryValues(addedPrimaryKeys)...)
|
||||
association.setErr(relationship.JoinTableHandler.Delete(relationship.JoinTableHandler, query, relationship))
|
||||
}
|
||||
} else {
|
||||
|
|
@ -146,8 +137,13 @@ func (association *Association) Clear() *Association {
|
|||
relationship := association.Field.Relationship
|
||||
scope := association.Scope
|
||||
if relationship.Kind == "many_to_many" {
|
||||
sql := fmt.Sprintf("%v = ?", scope.Quote(relationship.ForeignDBName))
|
||||
query := scope.NewDB().Where(sql, association.PrimaryKey)
|
||||
query := scope.NewDB()
|
||||
for idx, foreignKey := range relationship.ForeignDBNames {
|
||||
if field, ok := scope.FieldByName(relationship.ForeignFieldNames[idx]); ok {
|
||||
query = query.Where(fmt.Sprintf("%v = ?", scope.Quote(foreignKey)), field.Field.Interface())
|
||||
}
|
||||
}
|
||||
|
||||
if err := relationship.JoinTableHandler.Delete(relationship.JoinTableHandler, query, relationship); err == nil {
|
||||
association.Field.Set(reflect.Zero(association.Field.Field.Type()))
|
||||
} else {
|
||||
|
|
@ -168,18 +164,103 @@ func (association *Association) Count() int {
|
|||
if relationship.Kind == "many_to_many" {
|
||||
relationship.JoinTableHandler.JoinWith(relationship.JoinTableHandler, scope.NewDB(), association.Scope.Value).Table(newScope.TableName()).Count(&count)
|
||||
} else if relationship.Kind == "has_many" || relationship.Kind == "has_one" {
|
||||
whereSql := fmt.Sprintf("%v.%v = ?", newScope.QuotedTableName(), newScope.Quote(relationship.ForeignDBName))
|
||||
countScope := scope.DB().Table(newScope.TableName()).Where(whereSql, association.PrimaryKey)
|
||||
query := scope.DB()
|
||||
for idx, foreignKey := range relationship.ForeignDBNames {
|
||||
if field, ok := scope.FieldByName(relationship.AssociationForeignDBNames[idx]); ok {
|
||||
query = query.Where(fmt.Sprintf("%v.%v = ?", newScope.QuotedTableName(), scope.Quote(foreignKey)),
|
||||
field.Field.Interface())
|
||||
}
|
||||
}
|
||||
|
||||
if relationship.PolymorphicType != "" {
|
||||
countScope = countScope.Where(fmt.Sprintf("%v.%v = ?", newScope.QuotedTableName(), newScope.Quote(relationship.PolymorphicDBName)), scope.TableName())
|
||||
query = query.Where(fmt.Sprintf("%v.%v = ?", newScope.QuotedTableName(), newScope.Quote(relationship.PolymorphicDBName)), scope.TableName())
|
||||
}
|
||||
countScope.Count(&count)
|
||||
query.Count(&count)
|
||||
} else if relationship.Kind == "belongs_to" {
|
||||
if v, ok := scope.FieldByName(association.Column); ok {
|
||||
whereSql := fmt.Sprintf("%v.%v = ?", newScope.QuotedTableName(), newScope.Quote(relationship.ForeignDBName))
|
||||
scope.DB().Table(newScope.TableName()).Where(whereSql, v).Count(&count)
|
||||
query := scope.DB()
|
||||
for idx, foreignKey := range relationship.ForeignDBNames {
|
||||
if field, ok := scope.FieldByName(relationship.AssociationForeignDBNames[idx]); ok {
|
||||
query = query.Where(fmt.Sprintf("%v.%v = ?", newScope.QuotedTableName(), scope.Quote(foreignKey)),
|
||||
field.Field.Interface())
|
||||
}
|
||||
}
|
||||
query.Table(newScope.TableName()).Count(&count)
|
||||
}
|
||||
|
||||
return count
|
||||
}
|
||||
|
||||
func (association *Association) getPrimaryKeys(columns []string, values ...interface{}) [][]interface{} {
|
||||
results := [][]interface{}{}
|
||||
scope := association.Scope
|
||||
|
||||
for _, value := range values {
|
||||
primaryKeys := []interface{}{}
|
||||
|
||||
reflectValue := reflect.Indirect(reflect.ValueOf(value))
|
||||
if reflectValue.Kind() == reflect.Slice {
|
||||
for i := 0; i < reflectValue.Len(); i++ {
|
||||
newScope := scope.New(reflectValue.Index(i).Interface())
|
||||
for _, column := range columns {
|
||||
if field, ok := newScope.FieldByName(column); ok {
|
||||
primaryKeys = append(primaryKeys, field.Field.Interface())
|
||||
} else {
|
||||
primaryKeys = append(primaryKeys, "")
|
||||
}
|
||||
}
|
||||
}
|
||||
} else if reflectValue.Kind() == reflect.Struct {
|
||||
newScope := scope.New(value)
|
||||
for _, column := range columns {
|
||||
if field, ok := newScope.FieldByName(column); ok {
|
||||
primaryKeys = append(primaryKeys, field.Field.Interface())
|
||||
} else {
|
||||
primaryKeys = append(primaryKeys, "")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
results = append(results, primaryKeys)
|
||||
}
|
||||
return results
|
||||
}
|
||||
|
||||
func toQueryMarks(primaryValues [][]interface{}) string {
|
||||
var results []string
|
||||
|
||||
for _, primaryValue := range primaryValues {
|
||||
var marks []string
|
||||
for range primaryValue {
|
||||
marks = append(marks, "?")
|
||||
}
|
||||
|
||||
if len(marks) > 1 {
|
||||
results = append(results, fmt.Sprintf("(%v)", strings.Join(marks, ",")))
|
||||
} else {
|
||||
results = append(results, strings.Join(marks, ""))
|
||||
}
|
||||
}
|
||||
return strings.Join(results, ",")
|
||||
}
|
||||
|
||||
func toQueryCondition(scope *Scope, columns []string) string {
|
||||
var newColumns []string
|
||||
for _, column := range columns {
|
||||
newColumns = append(newColumns, scope.Quote(column))
|
||||
}
|
||||
|
||||
if len(columns) > 1 {
|
||||
return fmt.Sprintf("(%v)", strings.Join(newColumns, ","))
|
||||
} else {
|
||||
return strings.Join(columns, ",")
|
||||
}
|
||||
}
|
||||
|
||||
func toQueryValues(primaryValues [][]interface{}) (values []interface{}) {
|
||||
for _, primaryValue := range primaryValues {
|
||||
for _, value := range primaryValue {
|
||||
values = append(values, value)
|
||||
}
|
||||
}
|
||||
return values
|
||||
}
|
||||
|
|
|
|||
2
main.go
2
main.go
|
|
@ -448,7 +448,7 @@ func (s *DB) Association(column string) *Association {
|
|||
if field.Relationship == nil || len(field.Relationship.ForeignFieldNames) == 0 {
|
||||
err = fmt.Errorf("invalid association %v for %v", column, scope.IndirectValue().Type())
|
||||
} else {
|
||||
return &Association{Scope: scope, Column: column, PrimaryKey: primaryField.Field.Interface(), Field: field}
|
||||
return &Association{Scope: scope, Column: column, Field: field}
|
||||
}
|
||||
} else {
|
||||
err = fmt.Errorf("%v doesn't have column %v", scope.IndirectValue().Type(), column)
|
||||
|
|
|
|||
Loading…
Reference in New Issue