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model.go
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model.go
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// Copyright 2021 The Casdoor Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package object
import (
"fmt"
"github.com/casbin/casbin/v2/model"
"github.com/casdoor/casdoor/util"
"xorm.io/core"
)
type Model struct {
Owner string `xorm:"varchar(100) notnull pk" json:"owner"`
Name string `xorm:"varchar(100) notnull pk" json:"name"`
CreatedTime string `xorm:"varchar(100)" json:"createdTime"`
DisplayName string `xorm:"varchar(100)" json:"displayName"`
ModelText string `xorm:"mediumtext" json:"modelText"`
IsEnabled bool `json:"isEnabled"`
}
func GetModelCount(owner, field, value string) int {
session := GetSession(owner, -1, -1, field, value, "", "")
count, err := session.Count(&Model{})
if err != nil {
panic(err)
}
return int(count)
}
func GetModels(owner string) []*Model {
models := []*Model{}
err := adapter.Engine.Desc("created_time").Find(&models, &Model{Owner: owner})
if err != nil {
panic(err)
}
return models
}
func GetPaginationModels(owner string, offset, limit int, field, value, sortField, sortOrder string) []*Model {
models := []*Model{}
session := GetSession(owner, offset, limit, field, value, sortField, sortOrder)
err := session.Find(&models)
if err != nil {
panic(err)
}
return models
}
func getModel(owner string, name string) *Model {
if owner == "" || name == "" {
return nil
}
m := Model{Owner: owner, Name: name}
existed, err := adapter.Engine.Get(&m)
if err != nil {
panic(err)
}
if existed {
return &m
} else {
return nil
}
}
func GetModel(id string) *Model {
owner, name := util.GetOwnerAndNameFromId(id)
return getModel(owner, name)
}
func UpdateModel(id string, modelObj *Model) bool {
owner, name := util.GetOwnerAndNameFromId(id)
if getModel(owner, name) == nil {
return false
}
if name != modelObj.Name {
err := modelChangeTrigger(name, modelObj.Name)
if err != nil {
return false
}
}
// check model grammar
_, err := model.NewModelFromString(modelObj.ModelText)
if err != nil {
panic(err)
}
affected, err := adapter.Engine.ID(core.PK{owner, name}).AllCols().Update(modelObj)
if err != nil {
panic(err)
}
return affected != 0
}
func AddModel(model *Model) bool {
affected, err := adapter.Engine.Insert(model)
if err != nil {
panic(err)
}
return affected != 0
}
func DeleteModel(model *Model) bool {
affected, err := adapter.Engine.ID(core.PK{model.Owner, model.Name}).Delete(&Model{})
if err != nil {
panic(err)
}
return affected != 0
}
func (model *Model) GetId() string {
return fmt.Sprintf("%s/%s", model.Owner, model.Name)
}
func modelChangeTrigger(oldName string, newName string) error {
session := adapter.Engine.NewSession()
defer session.Close()
err := session.Begin()
if err != nil {
return err
}
permission := new(Permission)
permission.Model = newName
_, err = session.Where("model=?", oldName).Update(permission)
if err != nil {
return err
}
return session.Commit()
}
func HasRoleDefinition(m model.Model) bool {
return m["g"] != nil
}