mirror of
https://github.com/astaxie/beego.git
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109 lines
2.7 KiB
Go
109 lines
2.7 KiB
Go
// Copyright 2014 beego Author. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package orm
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import (
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"reflect"
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"sync"
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)
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const (
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odCascade = "cascade"
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odSetNULL = "set_null"
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odSetDefault = "set_default"
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odDoNothing = "do_nothing"
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defaultStructTagName = "orm"
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defaultStructTagDelim = ";"
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)
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var (
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modelCache = &_modelCache{
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cache: make(map[string]*modelInfo),
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cacheByFullName: make(map[string]*modelInfo),
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}
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)
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// model info collection
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type _modelCache struct {
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sync.RWMutex // only used outsite for bootStrap
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orders []string
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cache map[string]*modelInfo
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cacheByFullName map[string]*modelInfo
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done bool
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}
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// get all model info
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func (mc *_modelCache) all() map[string]*modelInfo {
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m := make(map[string]*modelInfo, len(mc.cache))
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for k, v := range mc.cache {
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m[k] = v
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}
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return m
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}
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// get ordered model info
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func (mc *_modelCache) allOrdered() []*modelInfo {
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m := make([]*modelInfo, 0, len(mc.orders))
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for _, table := range mc.orders {
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m = append(m, mc.cache[table])
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}
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return m
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}
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// get model info by table name
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func (mc *_modelCache) get(table string) (mi *modelInfo, ok bool) {
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mi, ok = mc.cache[table]
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return
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}
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// get model info by full name
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func (mc *_modelCache) getByFullName(name string) (mi *modelInfo, ok bool) {
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mi, ok = mc.cacheByFullName[name]
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return
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}
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func (mc *_modelCache) getByMd(md interface{}) (*modelInfo, bool) {
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val := reflect.ValueOf(md)
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ind := reflect.Indirect(val)
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typ := ind.Type()
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name := getFullName(typ)
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return mc.getByFullName(name)
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}
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// set model info to collection
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func (mc *_modelCache) set(table string, mi *modelInfo) *modelInfo {
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mii := mc.cache[table]
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mc.cache[table] = mi
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mc.cacheByFullName[mi.fullName] = mi
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if mii == nil {
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mc.orders = append(mc.orders, table)
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}
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return mii
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}
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// clean all model info.
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func (mc *_modelCache) clean() {
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mc.orders = make([]string, 0)
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mc.cache = make(map[string]*modelInfo)
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mc.cacheByFullName = make(map[string]*modelInfo)
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mc.done = false
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}
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// ResetModelCache Clean model cache. Then you can re-RegisterModel.
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// Common use this api for test case.
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func ResetModelCache() {
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modelCache.clean()
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}
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