mirror of
https://github.com/astaxie/beego.git
synced 2024-12-23 02:30:49 +00:00
add comments for orm package, done
This commit is contained in:
FuXiaoHei
parent
4c527dde65
commit
828a306069
@ -41,6 +41,7 @@ var (
|
||||
}
|
||||
)
|
||||
|
||||
// model info collection
|
||||
type _modelCache struct {
|
||||
sync.RWMutex
|
||||
orders []string
|
||||
@ -49,6 +50,7 @@ type _modelCache struct {
|
||||
done bool
|
||||
}
|
||||
|
||||
// get all model info
|
||||
func (mc *_modelCache) all() map[string]*modelInfo {
|
||||
m := make(map[string]*modelInfo, len(mc.cache))
|
||||
for k, v := range mc.cache {
|
||||
@ -57,6 +59,7 @@ func (mc *_modelCache) all() map[string]*modelInfo {
|
||||
return m
|
||||
}
|
||||
|
||||
// get orderd model info
|
||||
func (mc *_modelCache) allOrdered() []*modelInfo {
|
||||
m := make([]*modelInfo, 0, len(mc.orders))
|
||||
for _, table := range mc.orders {
|
||||
@ -65,16 +68,19 @@ func (mc *_modelCache) allOrdered() []*modelInfo {
|
||||
return m
|
||||
}
|
||||
|
||||
// get model info by table name
|
||||
func (mc *_modelCache) get(table string) (mi *modelInfo, ok bool) {
|
||||
mi, ok = mc.cache[table]
|
||||
return
|
||||
}
|
||||
|
||||
// get model info by field name
|
||||
func (mc *_modelCache) getByFN(name string) (mi *modelInfo, ok bool) {
|
||||
mi, ok = mc.cacheByFN[name]
|
||||
return
|
||||
}
|
||||
|
||||
// set model info to collection
|
||||
func (mc *_modelCache) set(table string, mi *modelInfo) *modelInfo {
|
||||
mii := mc.cache[table]
|
||||
mc.cache[table] = mi
|
||||
@ -85,6 +91,7 @@ func (mc *_modelCache) set(table string, mi *modelInfo) *modelInfo {
|
||||
return mii
|
||||
}
|
||||
|
||||
// clean all model info.
|
||||
func (mc *_modelCache) clean() {
|
||||
mc.orders = make([]string, 0)
|
||||
mc.cache = make(map[string]*modelInfo)
|
||||
|
||||
@ -8,6 +8,8 @@ import (
|
||||
"strings"
|
||||
)
|
||||
|
||||
// register models.
|
||||
// prefix means table name prefix.
|
||||
func registerModel(model interface{}, prefix string) {
|
||||
val := reflect.ValueOf(model)
|
||||
ind := reflect.Indirect(val)
|
||||
@ -67,6 +69,7 @@ func registerModel(model interface{}, prefix string) {
|
||||
modelCache.set(table, info)
|
||||
}
|
||||
|
||||
// boostrap models
|
||||
func bootStrap() {
|
||||
if modelCache.done {
|
||||
return
|
||||
@ -281,6 +284,7 @@ end:
|
||||
}
|
||||
}
|
||||
|
||||
// register models
|
||||
func RegisterModel(models ...interface{}) {
|
||||
if modelCache.done {
|
||||
panic(fmt.Errorf("RegisterModel must be run before BootStrap"))
|
||||
@ -302,6 +306,8 @@ func RegisterModelWithPrefix(prefix string, models ...interface{}) {
|
||||
}
|
||||
}
|
||||
|
||||
// bootrap models.
|
||||
// make all model parsed and can not add more models
|
||||
func BootStrap() {
|
||||
if modelCache.done {
|
||||
return
|
||||
|
||||
@ -9,6 +9,7 @@ import (
|
||||
|
||||
var errSkipField = errors.New("skip field")
|
||||
|
||||
// field info collection
|
||||
type fields struct {
|
||||
pk *fieldInfo
|
||||
columns map[string]*fieldInfo
|
||||
@ -23,6 +24,7 @@ type fields struct {
|
||||
dbcols []string
|
||||
}
|
||||
|
||||
// add field info
|
||||
func (f *fields) Add(fi *fieldInfo) (added bool) {
|
||||
if f.fields[fi.name] == nil && f.columns[fi.column] == nil {
|
||||
f.columns[fi.column] = fi
|
||||
@ -49,14 +51,17 @@ func (f *fields) Add(fi *fieldInfo) (added bool) {
|
||||
return true
|
||||
}
|
||||
|
||||
// get field info by name
|
||||
func (f *fields) GetByName(name string) *fieldInfo {
|
||||
return f.fields[name]
|
||||
}
|
||||
|
||||
// get field info by column name
|
||||
func (f *fields) GetByColumn(column string) *fieldInfo {
|
||||
return f.columns[column]
|
||||
}
|
||||
|
||||
// get field info by string, name is prior
|
||||
func (f *fields) GetByAny(name string) (*fieldInfo, bool) {
|
||||
if fi, ok := f.fields[name]; ok {
|
||||
return fi, ok
|
||||
@ -70,6 +75,7 @@ func (f *fields) GetByAny(name string) (*fieldInfo, bool) {
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// create new field info collection
|
||||
func newFields() *fields {
|
||||
f := new(fields)
|
||||
f.fields = make(map[string]*fieldInfo)
|
||||
@ -79,6 +85,7 @@ func newFields() *fields {
|
||||
return f
|
||||
}
|
||||
|
||||
// single field info
|
||||
type fieldInfo struct {
|
||||
mi *modelInfo
|
||||
fieldIndex int
|
||||
@ -115,6 +122,7 @@ type fieldInfo struct {
|
||||
onDelete string
|
||||
}
|
||||
|
||||
// new field info
|
||||
func newFieldInfo(mi *modelInfo, field reflect.Value, sf reflect.StructField) (fi *fieldInfo, err error) {
|
||||
var (
|
||||
tag string
|
||||
|
||||
@ -7,6 +7,7 @@ import (
|
||||
"reflect"
|
||||
)
|
||||
|
||||
// single model info
|
||||
type modelInfo struct {
|
||||
pkg string
|
||||
name string
|
||||
@ -20,6 +21,7 @@ type modelInfo struct {
|
||||
isThrough bool
|
||||
}
|
||||
|
||||
// new model info
|
||||
func newModelInfo(val reflect.Value) (info *modelInfo) {
|
||||
var (
|
||||
err error
|
||||
@ -79,6 +81,8 @@ func newModelInfo(val reflect.Value) (info *modelInfo) {
|
||||
return
|
||||
}
|
||||
|
||||
// combine related model info to new model info.
|
||||
// prepare for relation models query.
|
||||
func newM2MModelInfo(m1, m2 *modelInfo) (info *modelInfo) {
|
||||
info = new(modelInfo)
|
||||
info.fields = newFields()
|
||||
|
||||
@ -7,10 +7,12 @@ import (
|
||||
"time"
|
||||
)
|
||||
|
||||
// get reflect.Type name with package path.
|
||||
func getFullName(typ reflect.Type) string {
|
||||
return typ.PkgPath() + "." + typ.Name()
|
||||
}
|
||||
|
||||
// get table name. method, or field name. auto snaked.
|
||||
func getTableName(val reflect.Value) string {
|
||||
ind := reflect.Indirect(val)
|
||||
fun := val.MethodByName("TableName")
|
||||
@ -26,6 +28,7 @@ func getTableName(val reflect.Value) string {
|
||||
return snakeString(ind.Type().Name())
|
||||
}
|
||||
|
||||
// get table engine, mysiam or innodb.
|
||||
func getTableEngine(val reflect.Value) string {
|
||||
fun := val.MethodByName("TableEngine")
|
||||
if fun.IsValid() {
|
||||
@ -40,6 +43,7 @@ func getTableEngine(val reflect.Value) string {
|
||||
return ""
|
||||
}
|
||||
|
||||
// get table index from method.
|
||||
func getTableIndex(val reflect.Value) [][]string {
|
||||
fun := val.MethodByName("TableIndex")
|
||||
if fun.IsValid() {
|
||||
@ -56,6 +60,7 @@ func getTableIndex(val reflect.Value) [][]string {
|
||||
return nil
|
||||
}
|
||||
|
||||
// get table unique from method
|
||||
func getTableUnique(val reflect.Value) [][]string {
|
||||
fun := val.MethodByName("TableUnique")
|
||||
if fun.IsValid() {
|
||||
@ -72,6 +77,7 @@ func getTableUnique(val reflect.Value) [][]string {
|
||||
return nil
|
||||
}
|
||||
|
||||
// get snaked column name
|
||||
func getColumnName(ft int, addrField reflect.Value, sf reflect.StructField, col string) string {
|
||||
col = strings.ToLower(col)
|
||||
column := col
|
||||
@ -89,6 +95,7 @@ func getColumnName(ft int, addrField reflect.Value, sf reflect.StructField, col
|
||||
return column
|
||||
}
|
||||
|
||||
// return field type as type constant from reflect.Value
|
||||
func getFieldType(val reflect.Value) (ft int, err error) {
|
||||
elm := reflect.Indirect(val)
|
||||
switch elm.Kind() {
|
||||
@ -128,6 +135,7 @@ func getFieldType(val reflect.Value) (ft int, err error) {
|
||||
return
|
||||
}
|
||||
|
||||
// parse struct tag string
|
||||
func parseStructTag(data string, attrs *map[string]bool, tags *map[string]string) {
|
||||
attr := make(map[string]bool)
|
||||
tag := make(map[string]string)
|
||||
|
||||
37
orm/orm.go
37
orm/orm.go
@ -40,6 +40,7 @@ type orm struct {
|
||||
|
||||
var _ Ormer = new(orm)
|
||||
|
||||
// get model info and model reflect value
|
||||
func (o *orm) getMiInd(md interface{}, needPtr bool) (mi *modelInfo, ind reflect.Value) {
|
||||
val := reflect.ValueOf(md)
|
||||
ind = reflect.Indirect(val)
|
||||
@ -54,6 +55,7 @@ func (o *orm) getMiInd(md interface{}, needPtr bool) (mi *modelInfo, ind reflect
|
||||
panic(fmt.Errorf("<Ormer> table: `%s` not found, maybe not RegisterModel", name))
|
||||
}
|
||||
|
||||
// get field info from model info by given field name
|
||||
func (o *orm) getFieldInfo(mi *modelInfo, name string) *fieldInfo {
|
||||
fi, ok := mi.fields.GetByAny(name)
|
||||
if !ok {
|
||||
@ -62,6 +64,7 @@ func (o *orm) getFieldInfo(mi *modelInfo, name string) *fieldInfo {
|
||||
return fi
|
||||
}
|
||||
|
||||
// read data to model
|
||||
func (o *orm) Read(md interface{}, cols ...string) error {
|
||||
mi, ind := o.getMiInd(md, true)
|
||||
err := o.alias.DbBaser.Read(o.db, mi, ind, o.alias.TZ, cols)
|
||||
@ -71,6 +74,7 @@ func (o *orm) Read(md interface{}, cols ...string) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// insert model data to database
|
||||
func (o *orm) Insert(md interface{}) (int64, error) {
|
||||
mi, ind := o.getMiInd(md, true)
|
||||
id, err := o.alias.DbBaser.Insert(o.db, mi, ind, o.alias.TZ)
|
||||
@ -83,6 +87,7 @@ func (o *orm) Insert(md interface{}) (int64, error) {
|
||||
return id, nil
|
||||
}
|
||||
|
||||
// set auto pk field
|
||||
func (o *orm) setPk(mi *modelInfo, ind reflect.Value, id int64) {
|
||||
if mi.fields.pk.auto {
|
||||
if mi.fields.pk.fieldType&IsPostiveIntegerField > 0 {
|
||||
@ -93,6 +98,7 @@ func (o *orm) setPk(mi *modelInfo, ind reflect.Value, id int64) {
|
||||
}
|
||||
}
|
||||
|
||||
// insert some models to database
|
||||
func (o *orm) InsertMulti(bulk int, mds interface{}) (int64, error) {
|
||||
var cnt int64
|
||||
|
||||
@ -127,6 +133,8 @@ func (o *orm) InsertMulti(bulk int, mds interface{}) (int64, error) {
|
||||
return cnt, nil
|
||||
}
|
||||
|
||||
// update model to database.
|
||||
// cols set the columns those want to update.
|
||||
func (o *orm) Update(md interface{}, cols ...string) (int64, error) {
|
||||
mi, ind := o.getMiInd(md, true)
|
||||
num, err := o.alias.DbBaser.Update(o.db, mi, ind, o.alias.TZ, cols)
|
||||
@ -136,6 +144,7 @@ func (o *orm) Update(md interface{}, cols ...string) (int64, error) {
|
||||
return num, nil
|
||||
}
|
||||
|
||||
// delete model in database
|
||||
func (o *orm) Delete(md interface{}) (int64, error) {
|
||||
mi, ind := o.getMiInd(md, true)
|
||||
num, err := o.alias.DbBaser.Delete(o.db, mi, ind, o.alias.TZ)
|
||||
@ -148,6 +157,7 @@ func (o *orm) Delete(md interface{}) (int64, error) {
|
||||
return num, nil
|
||||
}
|
||||
|
||||
// create a models to models queryer
|
||||
func (o *orm) QueryM2M(md interface{}, name string) QueryM2Mer {
|
||||
mi, ind := o.getMiInd(md, true)
|
||||
fi := o.getFieldInfo(mi, name)
|
||||
@ -162,6 +172,14 @@ func (o *orm) QueryM2M(md interface{}, name string) QueryM2Mer {
|
||||
return newQueryM2M(md, o, mi, fi, ind)
|
||||
}
|
||||
|
||||
// load related models to md model.
|
||||
// args are limit, offset int and order string.
|
||||
//
|
||||
// example:
|
||||
// orm.LoadRelated(post,"Tags")
|
||||
// for _,tag := range post.Tags{...}
|
||||
//
|
||||
// make sure the relation is defined in model struct tags.
|
||||
func (o *orm) LoadRelated(md interface{}, name string, args ...interface{}) (int64, error) {
|
||||
_, fi, ind, qseter := o.queryRelated(md, name)
|
||||
|
||||
@ -223,12 +241,19 @@ func (o *orm) LoadRelated(md interface{}, name string, args ...interface{}) (int
|
||||
return nums, err
|
||||
}
|
||||
|
||||
// return a QuerySeter for related models to md model.
|
||||
// it can do all, update, delete in QuerySeter.
|
||||
// example:
|
||||
// qs := orm.QueryRelated(post,"Tag")
|
||||
// qs.All(&[]*Tag{})
|
||||
//
|
||||
func (o *orm) QueryRelated(md interface{}, name string) QuerySeter {
|
||||
// is this api needed ?
|
||||
_, _, _, qs := o.queryRelated(md, name)
|
||||
return qs
|
||||
}
|
||||
|
||||
// get QuerySeter for related models to md model
|
||||
func (o *orm) queryRelated(md interface{}, name string) (*modelInfo, *fieldInfo, reflect.Value, QuerySeter) {
|
||||
mi, ind := o.getMiInd(md, true)
|
||||
fi := o.getFieldInfo(mi, name)
|
||||
@ -260,6 +285,7 @@ func (o *orm) queryRelated(md interface{}, name string) (*modelInfo, *fieldInfo,
|
||||
return mi, fi, ind, qs
|
||||
}
|
||||
|
||||
// get reverse relation QuerySeter
|
||||
func (o *orm) getReverseQs(md interface{}, mi *modelInfo, fi *fieldInfo) *querySet {
|
||||
switch fi.fieldType {
|
||||
case RelReverseOne, RelReverseMany:
|
||||
@ -280,6 +306,7 @@ func (o *orm) getReverseQs(md interface{}, mi *modelInfo, fi *fieldInfo) *queryS
|
||||
return q
|
||||
}
|
||||
|
||||
// get relation QuerySeter
|
||||
func (o *orm) getRelQs(md interface{}, mi *modelInfo, fi *fieldInfo) *querySet {
|
||||
switch fi.fieldType {
|
||||
case RelOneToOne, RelForeignKey, RelManyToMany:
|
||||
@ -299,6 +326,9 @@ func (o *orm) getRelQs(md interface{}, mi *modelInfo, fi *fieldInfo) *querySet {
|
||||
return q
|
||||
}
|
||||
|
||||
// return a QuerySeter for table operations.
|
||||
// table name can be string or struct.
|
||||
// e.g. QueryTable("user"), QueryTable(&user{}) or QueryTable((*User)(nil)),
|
||||
func (o *orm) QueryTable(ptrStructOrTableName interface{}) (qs QuerySeter) {
|
||||
name := ""
|
||||
if table, ok := ptrStructOrTableName.(string); ok {
|
||||
@ -318,6 +348,7 @@ func (o *orm) QueryTable(ptrStructOrTableName interface{}) (qs QuerySeter) {
|
||||
return
|
||||
}
|
||||
|
||||
// switch to another registered database driver by given name.
|
||||
func (o *orm) Using(name string) error {
|
||||
if o.isTx {
|
||||
panic(fmt.Errorf("<Ormer.Using> transaction has been start, cannot change db"))
|
||||
@ -335,6 +366,7 @@ func (o *orm) Using(name string) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// begin transaction
|
||||
func (o *orm) Begin() error {
|
||||
if o.isTx {
|
||||
return ErrTxHasBegan
|
||||
@ -353,6 +385,7 @@ func (o *orm) Begin() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// commit transaction
|
||||
func (o *orm) Commit() error {
|
||||
if o.isTx == false {
|
||||
return ErrTxDone
|
||||
@ -367,6 +400,7 @@ func (o *orm) Commit() error {
|
||||
return err
|
||||
}
|
||||
|
||||
// rollback transaction
|
||||
func (o *orm) Rollback() error {
|
||||
if o.isTx == false {
|
||||
return ErrTxDone
|
||||
@ -381,14 +415,17 @@ func (o *orm) Rollback() error {
|
||||
return err
|
||||
}
|
||||
|
||||
// return a raw query seter for raw sql string.
|
||||
func (o *orm) Raw(query string, args ...interface{}) RawSeter {
|
||||
return newRawSet(o, query, args)
|
||||
}
|
||||
|
||||
// return current using database Driver
|
||||
func (o *orm) Driver() Driver {
|
||||
return driver(o.alias.Name)
|
||||
}
|
||||
|
||||
// create new orm
|
||||
func NewOrm() Ormer {
|
||||
BootStrap() // execute only once
|
||||
|
||||
|
||||
@ -18,15 +18,19 @@ type condValue struct {
|
||||
isCond bool
|
||||
}
|
||||
|
||||
// condition struct.
|
||||
// work for WHERE conditions.
|
||||
type Condition struct {
|
||||
params []condValue
|
||||
}
|
||||
|
||||
// return new condition struct
|
||||
func NewCondition() *Condition {
|
||||
c := &Condition{}
|
||||
return c
|
||||
}
|
||||
|
||||
// add expression to condition
|
||||
func (c Condition) And(expr string, args ...interface{}) *Condition {
|
||||
if expr == "" || len(args) == 0 {
|
||||
panic(fmt.Errorf("<Condition.And> args cannot empty"))
|
||||
@ -35,6 +39,7 @@ func (c Condition) And(expr string, args ...interface{}) *Condition {
|
||||
return &c
|
||||
}
|
||||
|
||||
// add NOT expression to condition
|
||||
func (c Condition) AndNot(expr string, args ...interface{}) *Condition {
|
||||
if expr == "" || len(args) == 0 {
|
||||
panic(fmt.Errorf("<Condition.AndNot> args cannot empty"))
|
||||
@ -43,6 +48,7 @@ func (c Condition) AndNot(expr string, args ...interface{}) *Condition {
|
||||
return &c
|
||||
}
|
||||
|
||||
// combine a condition to current condition
|
||||
func (c *Condition) AndCond(cond *Condition) *Condition {
|
||||
c = c.clone()
|
||||
if c == cond {
|
||||
@ -54,6 +60,7 @@ func (c *Condition) AndCond(cond *Condition) *Condition {
|
||||
return c
|
||||
}
|
||||
|
||||
// add OR expression to condition
|
||||
func (c Condition) Or(expr string, args ...interface{}) *Condition {
|
||||
if expr == "" || len(args) == 0 {
|
||||
panic(fmt.Errorf("<Condition.Or> args cannot empty"))
|
||||
@ -62,6 +69,7 @@ func (c Condition) Or(expr string, args ...interface{}) *Condition {
|
||||
return &c
|
||||
}
|
||||
|
||||
// add OR NOT expression to condition
|
||||
func (c Condition) OrNot(expr string, args ...interface{}) *Condition {
|
||||
if expr == "" || len(args) == 0 {
|
||||
panic(fmt.Errorf("<Condition.OrNot> args cannot empty"))
|
||||
@ -70,6 +78,7 @@ func (c Condition) OrNot(expr string, args ...interface{}) *Condition {
|
||||
return &c
|
||||
}
|
||||
|
||||
// combine a OR condition to current condition
|
||||
func (c *Condition) OrCond(cond *Condition) *Condition {
|
||||
c = c.clone()
|
||||
if c == cond {
|
||||
@ -81,10 +90,12 @@ func (c *Condition) OrCond(cond *Condition) *Condition {
|
||||
return c
|
||||
}
|
||||
|
||||
// check the condition arguments are empty or not.
|
||||
func (c *Condition) IsEmpty() bool {
|
||||
return len(c.params) == 0
|
||||
}
|
||||
|
||||
// clone a condition
|
||||
func (c Condition) clone() *Condition {
|
||||
return &c
|
||||
}
|
||||
|
||||
@ -13,6 +13,7 @@ type Log struct {
|
||||
*log.Logger
|
||||
}
|
||||
|
||||
// set io.Writer to create a Logger.
|
||||
func NewLog(out io.Writer) *Log {
|
||||
d := new(Log)
|
||||
d.Logger = log.New(out, "[ORM]", 1e9)
|
||||
@ -40,6 +41,8 @@ func debugLogQueies(alias *alias, operaton, query string, t time.Time, err error
|
||||
DebugLog.Println(con)
|
||||
}
|
||||
|
||||
// statement query logger struct.
|
||||
// if dev mode, use stmtQueryLog, or use stmtQuerier.
|
||||
type stmtQueryLog struct {
|
||||
alias *alias
|
||||
query string
|
||||
@ -84,6 +87,8 @@ func newStmtQueryLog(alias *alias, stmt stmtQuerier, query string) stmtQuerier {
|
||||
return d
|
||||
}
|
||||
|
||||
// database query logger struct.
|
||||
// if dev mode, use dbQueryLog, or use dbQuerier.
|
||||
type dbQueryLog struct {
|
||||
alias *alias
|
||||
db dbQuerier
|
||||
|
||||
@ -5,6 +5,7 @@ import (
|
||||
"reflect"
|
||||
)
|
||||
|
||||
// an insert queryer struct
|
||||
type insertSet struct {
|
||||
mi *modelInfo
|
||||
orm *orm
|
||||
@ -14,6 +15,7 @@ type insertSet struct {
|
||||
|
||||
var _ Inserter = new(insertSet)
|
||||
|
||||
// insert model ignore it's registered or not.
|
||||
func (o *insertSet) Insert(md interface{}) (int64, error) {
|
||||
if o.closed {
|
||||
return 0, ErrStmtClosed
|
||||
@ -44,6 +46,7 @@ func (o *insertSet) Insert(md interface{}) (int64, error) {
|
||||
return id, nil
|
||||
}
|
||||
|
||||
// close insert queryer statement
|
||||
func (o *insertSet) Close() error {
|
||||
if o.closed {
|
||||
return ErrStmtClosed
|
||||
@ -52,6 +55,7 @@ func (o *insertSet) Close() error {
|
||||
return o.stmt.Close()
|
||||
}
|
||||
|
||||
// create new insert queryer.
|
||||
func newInsertSet(orm *orm, mi *modelInfo) (Inserter, error) {
|
||||
bi := new(insertSet)
|
||||
bi.orm = orm
|
||||
|
||||
@ -4,6 +4,7 @@ import (
|
||||
"reflect"
|
||||
)
|
||||
|
||||
// model to model struct
|
||||
type queryM2M struct {
|
||||
md interface{}
|
||||
mi *modelInfo
|
||||
@ -12,6 +13,13 @@ type queryM2M struct {
|
||||
ind reflect.Value
|
||||
}
|
||||
|
||||
// add models to origin models when creating queryM2M.
|
||||
// example:
|
||||
// m2m := orm.QueryM2M(post,"Tag")
|
||||
// m2m.Add(&Tag1{},&Tag2{})
|
||||
// for _,tag := range post.Tags{}
|
||||
//
|
||||
// make sure the relation is defined in post model struct tag.
|
||||
func (o *queryM2M) Add(mds ...interface{}) (int64, error) {
|
||||
fi := o.fi
|
||||
mi := fi.relThroughModelInfo
|
||||
@ -67,6 +75,7 @@ func (o *queryM2M) Add(mds ...interface{}) (int64, error) {
|
||||
return dbase.InsertValue(orm.db, mi, true, names, values)
|
||||
}
|
||||
|
||||
// remove models following the origin model relationship
|
||||
func (o *queryM2M) Remove(mds ...interface{}) (int64, error) {
|
||||
fi := o.fi
|
||||
qs := o.qs.Filter(fi.reverseFieldInfo.name, o.md)
|
||||
@ -78,17 +87,20 @@ func (o *queryM2M) Remove(mds ...interface{}) (int64, error) {
|
||||
return nums, nil
|
||||
}
|
||||
|
||||
// check model is existed in relationship of origin model
|
||||
func (o *queryM2M) Exist(md interface{}) bool {
|
||||
fi := o.fi
|
||||
return o.qs.Filter(fi.reverseFieldInfo.name, o.md).
|
||||
Filter(fi.reverseFieldInfoTwo.name, md).Exist()
|
||||
}
|
||||
|
||||
// clean all models in related of origin model
|
||||
func (o *queryM2M) Clear() (int64, error) {
|
||||
fi := o.fi
|
||||
return o.qs.Filter(fi.reverseFieldInfo.name, o.md).Delete()
|
||||
}
|
||||
|
||||
// count all related models of origin model
|
||||
func (o *queryM2M) Count() (int64, error) {
|
||||
fi := o.fi
|
||||
return o.qs.Filter(fi.reverseFieldInfo.name, o.md).Count()
|
||||
@ -96,6 +108,7 @@ func (o *queryM2M) Count() (int64, error) {
|
||||
|
||||
var _ QueryM2Mer = new(queryM2M)
|
||||
|
||||
// create new M2M queryer.
|
||||
func newQueryM2M(md interface{}, o *orm, mi *modelInfo, fi *fieldInfo, ind reflect.Value) QueryM2Mer {
|
||||
qm2m := new(queryM2M)
|
||||
qm2m.md = md
|
||||
|
||||
@ -18,6 +18,10 @@ const (
|
||||
Col_Except
|
||||
)
|
||||
|
||||
// ColValue do the field raw changes. e.g Nums = Nums + 10. usage:
|
||||
// Params{
|
||||
// "Nums": ColValue(Col_Add, 10),
|
||||
// }
|
||||
func ColValue(opt operator, value interface{}) interface{} {
|
||||
switch opt {
|
||||
case Col_Add, Col_Minus, Col_Multiply, Col_Except:
|
||||
@ -34,6 +38,7 @@ func ColValue(opt operator, value interface{}) interface{} {
|
||||
return val
|
||||
}
|
||||
|
||||
// real query struct
|
||||
type querySet struct {
|
||||
mi *modelInfo
|
||||
cond *Condition
|
||||
@ -47,6 +52,7 @@ type querySet struct {
|
||||
|
||||
var _ QuerySeter = new(querySet)
|
||||
|
||||
// add condition expression to QuerySeter.
|
||||
func (o querySet) Filter(expr string, args ...interface{}) QuerySeter {
|
||||
if o.cond == nil {
|
||||
o.cond = NewCondition()
|
||||
@ -55,6 +61,7 @@ func (o querySet) Filter(expr string, args ...interface{}) QuerySeter {
|
||||
return &o
|
||||
}
|
||||
|
||||
// add NOT condition to querySeter.
|
||||
func (o querySet) Exclude(expr string, args ...interface{}) QuerySeter {
|
||||
if o.cond == nil {
|
||||
o.cond = NewCondition()
|
||||
@ -63,10 +70,13 @@ func (o querySet) Exclude(expr string, args ...interface{}) QuerySeter {
|
||||
return &o
|
||||
}
|
||||
|
||||
// set offset number
|
||||
func (o *querySet) setOffset(num interface{}) {
|
||||
o.offset = ToInt64(num)
|
||||
}
|
||||
|
||||
// add LIMIT value.
|
||||
// args[0] means offset, e.g. LIMIT num,offset.
|
||||
func (o querySet) Limit(limit interface{}, args ...interface{}) QuerySeter {
|
||||
o.limit = ToInt64(limit)
|
||||
if len(args) > 0 {
|
||||
@ -75,16 +85,21 @@ func (o querySet) Limit(limit interface{}, args ...interface{}) QuerySeter {
|
||||
return &o
|
||||
}
|
||||
|
||||
// add OFFSET value
|
||||
func (o querySet) Offset(offset interface{}) QuerySeter {
|
||||
o.setOffset(offset)
|
||||
return &o
|
||||
}
|
||||
|
||||
// add ORDER expression.
|
||||
// "column" means ASC, "-column" means DESC.
|
||||
func (o querySet) OrderBy(exprs ...string) QuerySeter {
|
||||
o.orders = exprs
|
||||
return &o
|
||||
}
|
||||
|
||||
// set relation model to query together.
|
||||
// it will query relation models and assign to parent model.
|
||||
func (o querySet) RelatedSel(params ...interface{}) QuerySeter {
|
||||
var related []string
|
||||
if len(params) == 0 {
|
||||
@ -105,36 +120,50 @@ func (o querySet) RelatedSel(params ...interface{}) QuerySeter {
|
||||
return &o
|
||||
}
|
||||
|
||||
// set condition to QuerySeter.
|
||||
func (o querySet) SetCond(cond *Condition) QuerySeter {
|
||||
o.cond = cond
|
||||
return &o
|
||||
}
|
||||
|
||||
// return QuerySeter execution result number
|
||||
func (o *querySet) Count() (int64, error) {
|
||||
return o.orm.alias.DbBaser.Count(o.orm.db, o, o.mi, o.cond, o.orm.alias.TZ)
|
||||
}
|
||||
|
||||
// check result empty or not after QuerySeter executed
|
||||
func (o *querySet) Exist() bool {
|
||||
cnt, _ := o.orm.alias.DbBaser.Count(o.orm.db, o, o.mi, o.cond, o.orm.alias.TZ)
|
||||
return cnt > 0
|
||||
}
|
||||
|
||||
// execute update with parameters
|
||||
func (o *querySet) Update(values Params) (int64, error) {
|
||||
return o.orm.alias.DbBaser.UpdateBatch(o.orm.db, o, o.mi, o.cond, values, o.orm.alias.TZ)
|
||||
}
|
||||
|
||||
// execute delete
|
||||
func (o *querySet) Delete() (int64, error) {
|
||||
return o.orm.alias.DbBaser.DeleteBatch(o.orm.db, o, o.mi, o.cond, o.orm.alias.TZ)
|
||||
}
|
||||
|
||||
// return a insert queryer.
|
||||
// it can be used in times.
|
||||
// example:
|
||||
// i,err := sq.PrepareInsert()
|
||||
// i.Add(&user1{},&user2{})
|
||||
func (o *querySet) PrepareInsert() (Inserter, error) {
|
||||
return newInsertSet(o.orm, o.mi)
|
||||
}
|
||||
|
||||
// query all data and map to containers.
|
||||
// cols means the columns when querying.
|
||||
func (o *querySet) All(container interface{}, cols ...string) (int64, error) {
|
||||
return o.orm.alias.DbBaser.ReadBatch(o.orm.db, o, o.mi, o.cond, container, o.orm.alias.TZ, cols)
|
||||
}
|
||||
|
||||
// query one row data and map to containers.
|
||||
// cols means the columns when querying.
|
||||
func (o *querySet) One(container interface{}, cols ...string) error {
|
||||
num, err := o.orm.alias.DbBaser.ReadBatch(o.orm.db, o, o.mi, o.cond, container, o.orm.alias.TZ, cols)
|
||||
if err != nil {
|
||||
@ -149,18 +178,26 @@ func (o *querySet) One(container interface{}, cols ...string) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// query all data and map to []map[string]interface.
|
||||
// expres means condition expression.
|
||||
// it converts data to []map[column]value.
|
||||
func (o *querySet) Values(results *[]Params, exprs ...string) (int64, error) {
|
||||
return o.orm.alias.DbBaser.ReadValues(o.orm.db, o, o.mi, o.cond, exprs, results, o.orm.alias.TZ)
|
||||
}
|
||||
|
||||
// query all data and map to [][]interface
|
||||
// it converts data to [][column_index]value
|
||||
func (o *querySet) ValuesList(results *[]ParamsList, exprs ...string) (int64, error) {
|
||||
return o.orm.alias.DbBaser.ReadValues(o.orm.db, o, o.mi, o.cond, exprs, results, o.orm.alias.TZ)
|
||||
}
|
||||
|
||||
// query all data and map to []interface.
|
||||
// it's designed for one row record set, auto change to []value, not [][column]value.
|
||||
func (o *querySet) ValuesFlat(result *ParamsList, expr string) (int64, error) {
|
||||
return o.orm.alias.DbBaser.ReadValues(o.orm.db, o, o.mi, o.cond, []string{expr}, result, o.orm.alias.TZ)
|
||||
}
|
||||
|
||||
// create new QuerySeter.
|
||||
func newQuerySet(orm *orm, mi *modelInfo) QuerySeter {
|
||||
o := new(querySet)
|
||||
o.mi = mi
|
||||
|
||||
@ -7,6 +7,7 @@ import (
|
||||
"time"
|
||||
)
|
||||
|
||||
// raw sql string prepared statement
|
||||
type rawPrepare struct {
|
||||
rs *rawSet
|
||||
stmt stmtQuerier
|
||||
@ -44,6 +45,7 @@ func newRawPreparer(rs *rawSet) (RawPreparer, error) {
|
||||
return o, nil
|
||||
}
|
||||
|
||||
// raw query seter
|
||||
type rawSet struct {
|
||||
query string
|
||||
args []interface{}
|
||||
@ -52,11 +54,13 @@ type rawSet struct {
|
||||
|
||||
var _ RawSeter = new(rawSet)
|
||||
|
||||
// set args for every query
|
||||
func (o rawSet) SetArgs(args ...interface{}) RawSeter {
|
||||
o.args = args
|
||||
return &o
|
||||
}
|
||||
|
||||
// execute raw sql and return sql.Result
|
||||
func (o *rawSet) Exec() (sql.Result, error) {
|
||||
query := o.query
|
||||
o.orm.alias.DbBaser.ReplaceMarks(&query)
|
||||
@ -65,6 +69,7 @@ func (o *rawSet) Exec() (sql.Result, error) {
|
||||
return o.orm.db.Exec(query, args...)
|
||||
}
|
||||
|
||||
// set field value to row container
|
||||
func (o *rawSet) setFieldValue(ind reflect.Value, value interface{}) {
|
||||
switch ind.Kind() {
|
||||
case reflect.Bool:
|
||||
@ -163,6 +168,7 @@ func (o *rawSet) setFieldValue(ind reflect.Value, value interface{}) {
|
||||
}
|
||||
}
|
||||
|
||||
// set field value in loop for slice container
|
||||
func (o *rawSet) loopSetRefs(refs []interface{}, sInds []reflect.Value, nIndsPtr *[]reflect.Value, eTyps []reflect.Type, init bool) {
|
||||
nInds := *nIndsPtr
|
||||
|
||||
@ -233,6 +239,7 @@ func (o *rawSet) loopSetRefs(refs []interface{}, sInds []reflect.Value, nIndsPtr
|
||||
}
|
||||
}
|
||||
|
||||
// query data and map to container
|
||||
func (o *rawSet) QueryRow(containers ...interface{}) error {
|
||||
refs := make([]interface{}, 0, len(containers))
|
||||
sInds := make([]reflect.Value, 0)
|
||||
@ -362,6 +369,7 @@ func (o *rawSet) QueryRow(containers ...interface{}) error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// query data rows and map to container
|
||||
func (o *rawSet) QueryRows(containers ...interface{}) (int64, error) {
|
||||
refs := make([]interface{}, 0, len(containers))
|
||||
sInds := make([]reflect.Value, 0)
|
||||
@ -615,18 +623,22 @@ func (o *rawSet) readValues(container interface{}) (int64, error) {
|
||||
return cnt, nil
|
||||
}
|
||||
|
||||
// query data to []map[string]interface
|
||||
func (o *rawSet) Values(container *[]Params) (int64, error) {
|
||||
return o.readValues(container)
|
||||
}
|
||||
|
||||
// query data to [][]interface
|
||||
func (o *rawSet) ValuesList(container *[]ParamsList) (int64, error) {
|
||||
return o.readValues(container)
|
||||
}
|
||||
|
||||
// query data to []interface
|
||||
func (o *rawSet) ValuesFlat(container *ParamsList) (int64, error) {
|
||||
return o.readValues(container)
|
||||
}
|
||||
|
||||
// return prepared raw statement for used in times.
|
||||
func (o *rawSet) Prepare() (RawPreparer, error) {
|
||||
return newRawPreparer(o)
|
||||
}
|
||||
|
||||
13
orm/types.go
13
orm/types.go
@ -6,11 +6,13 @@ import (
|
||||
"time"
|
||||
)
|
||||
|
||||
// database driver
|
||||
type Driver interface {
|
||||
Name() string
|
||||
Type() DriverType
|
||||
}
|
||||
|
||||
// field info
|
||||
type Fielder interface {
|
||||
String() string
|
||||
FieldType() int
|
||||
@ -18,6 +20,7 @@ type Fielder interface {
|
||||
RawValue() interface{}
|
||||
}
|
||||
|
||||
// orm struct
|
||||
type Ormer interface {
|
||||
Read(interface{}, ...string) error
|
||||
Insert(interface{}) (int64, error)
|
||||
@ -35,11 +38,13 @@ type Ormer interface {
|
||||
Driver() Driver
|
||||
}
|
||||
|
||||
// insert prepared statement
|
||||
type Inserter interface {
|
||||
Insert(interface{}) (int64, error)
|
||||
Close() error
|
||||
}
|
||||
|
||||
// query seter
|
||||
type QuerySeter interface {
|
||||
Filter(string, ...interface{}) QuerySeter
|
||||
Exclude(string, ...interface{}) QuerySeter
|
||||
@ -60,6 +65,7 @@ type QuerySeter interface {
|
||||
ValuesFlat(*ParamsList, string) (int64, error)
|
||||
}
|
||||
|
||||
// model to model query struct
|
||||
type QueryM2Mer interface {
|
||||
Add(...interface{}) (int64, error)
|
||||
Remove(...interface{}) (int64, error)
|
||||
@ -68,11 +74,13 @@ type QueryM2Mer interface {
|
||||
Count() (int64, error)
|
||||
}
|
||||
|
||||
// raw query statement
|
||||
type RawPreparer interface {
|
||||
Exec(...interface{}) (sql.Result, error)
|
||||
Close() error
|
||||
}
|
||||
|
||||
// raw query seter
|
||||
type RawSeter interface {
|
||||
Exec() (sql.Result, error)
|
||||
QueryRow(...interface{}) error
|
||||
@ -84,6 +92,7 @@ type RawSeter interface {
|
||||
Prepare() (RawPreparer, error)
|
||||
}
|
||||
|
||||
// statement querier
|
||||
type stmtQuerier interface {
|
||||
Close() error
|
||||
Exec(args ...interface{}) (sql.Result, error)
|
||||
@ -91,6 +100,7 @@ type stmtQuerier interface {
|
||||
QueryRow(args ...interface{}) *sql.Row
|
||||
}
|
||||
|
||||
// db querier
|
||||
type dbQuerier interface {
|
||||
Prepare(query string) (*sql.Stmt, error)
|
||||
Exec(query string, args ...interface{}) (sql.Result, error)
|
||||
@ -98,15 +108,18 @@ type dbQuerier interface {
|
||||
QueryRow(query string, args ...interface{}) *sql.Row
|
||||
}
|
||||
|
||||
// transaction beginner
|
||||
type txer interface {
|
||||
Begin() (*sql.Tx, error)
|
||||
}
|
||||
|
||||
// transaction ending
|
||||
type txEnder interface {
|
||||
Commit() error
|
||||
Rollback() error
|
||||
}
|
||||
|
||||
// base database struct
|
||||
type dbBaser interface {
|
||||
Read(dbQuerier, *modelInfo, reflect.Value, *time.Location, []string) error
|
||||
Insert(dbQuerier, *modelInfo, reflect.Value, *time.Location) (int64, error)
|
||||
|
||||
27
orm/utils.go
27
orm/utils.go
@ -10,6 +10,7 @@ import (
|
||||
|
||||
type StrTo string
|
||||
|
||||
// set string
|
||||
func (f *StrTo) Set(v string) {
|
||||
if v != "" {
|
||||
*f = StrTo(v)
|
||||
@ -18,77 +19,93 @@ func (f *StrTo) Set(v string) {
|
||||
}
|
||||
}
|
||||
|
||||
// clean string
|
||||
func (f *StrTo) Clear() {
|
||||
*f = StrTo(0x1E)
|
||||
}
|
||||
|
||||
// check string exist
|
||||
func (f StrTo) Exist() bool {
|
||||
return string(f) != string(0x1E)
|
||||
}
|
||||
|
||||
// string to bool
|
||||
func (f StrTo) Bool() (bool, error) {
|
||||
return strconv.ParseBool(f.String())
|
||||
}
|
||||
|
||||
// string to float32
|
||||
func (f StrTo) Float32() (float32, error) {
|
||||
v, err := strconv.ParseFloat(f.String(), 32)
|
||||
return float32(v), err
|
||||
}
|
||||
|
||||
// string to float64
|
||||
func (f StrTo) Float64() (float64, error) {
|
||||
return strconv.ParseFloat(f.String(), 64)
|
||||
}
|
||||
|
||||
// string to int
|
||||
func (f StrTo) Int() (int, error) {
|
||||
v, err := strconv.ParseInt(f.String(), 10, 32)
|
||||
return int(v), err
|
||||
}
|
||||
|
||||
// string to int8
|
||||
func (f StrTo) Int8() (int8, error) {
|
||||
v, err := strconv.ParseInt(f.String(), 10, 8)
|
||||
return int8(v), err
|
||||
}
|
||||
|
||||
// string to int16
|
||||
func (f StrTo) Int16() (int16, error) {
|
||||
v, err := strconv.ParseInt(f.String(), 10, 16)
|
||||
return int16(v), err
|
||||
}
|
||||
|
||||
// string to int32
|
||||
func (f StrTo) Int32() (int32, error) {
|
||||
v, err := strconv.ParseInt(f.String(), 10, 32)
|
||||
return int32(v), err
|
||||
}
|
||||
|
||||
// string to int64
|
||||
func (f StrTo) Int64() (int64, error) {
|
||||
v, err := strconv.ParseInt(f.String(), 10, 64)
|
||||
return int64(v), err
|
||||
}
|
||||
|
||||
// string to uint
|
||||
func (f StrTo) Uint() (uint, error) {
|
||||
v, err := strconv.ParseUint(f.String(), 10, 32)
|
||||
return uint(v), err
|
||||
}
|
||||
|
||||
// string to uint8
|
||||
func (f StrTo) Uint8() (uint8, error) {
|
||||
v, err := strconv.ParseUint(f.String(), 10, 8)
|
||||
return uint8(v), err
|
||||
}
|
||||
|
||||
// string to uint16
|
||||
func (f StrTo) Uint16() (uint16, error) {
|
||||
v, err := strconv.ParseUint(f.String(), 10, 16)
|
||||
return uint16(v), err
|
||||
}
|
||||
|
||||
// string to uint31
|
||||
func (f StrTo) Uint32() (uint32, error) {
|
||||
v, err := strconv.ParseUint(f.String(), 10, 32)
|
||||
return uint32(v), err
|
||||
}
|
||||
|
||||
// string to uint64
|
||||
func (f StrTo) Uint64() (uint64, error) {
|
||||
v, err := strconv.ParseUint(f.String(), 10, 64)
|
||||
return uint64(v), err
|
||||
}
|
||||
|
||||
// string to string
|
||||
func (f StrTo) String() string {
|
||||
if f.Exist() {
|
||||
return string(f)
|
||||
@ -96,6 +113,7 @@ func (f StrTo) String() string {
|
||||
return ""
|
||||
}
|
||||
|
||||
// interface to string
|
||||
func ToStr(value interface{}, args ...int) (s string) {
|
||||
switch v := value.(type) {
|
||||
case bool:
|
||||
@ -134,6 +152,7 @@ func ToStr(value interface{}, args ...int) (s string) {
|
||||
return s
|
||||
}
|
||||
|
||||
// interface to int64
|
||||
func ToInt64(value interface{}) (d int64) {
|
||||
val := reflect.ValueOf(value)
|
||||
switch value.(type) {
|
||||
@ -147,6 +166,7 @@ func ToInt64(value interface{}) (d int64) {
|
||||
return
|
||||
}
|
||||
|
||||
// snake string, XxYy to xx_yy
|
||||
func snakeString(s string) string {
|
||||
data := make([]byte, 0, len(s)*2)
|
||||
j := false
|
||||
@ -164,6 +184,7 @@ func snakeString(s string) string {
|
||||
return strings.ToLower(string(data[:len(data)]))
|
||||
}
|
||||
|
||||
// camel string, xx_yy to XxYy
|
||||
func camelString(s string) string {
|
||||
data := make([]byte, 0, len(s))
|
||||
j := false
|
||||
@ -190,6 +211,7 @@ func camelString(s string) string {
|
||||
|
||||
type argString []string
|
||||
|
||||
// get string by index from string slice
|
||||
func (a argString) Get(i int, args ...string) (r string) {
|
||||
if i >= 0 && i < len(a) {
|
||||
r = a[i]
|
||||
@ -201,6 +223,7 @@ func (a argString) Get(i int, args ...string) (r string) {
|
||||
|
||||
type argInt []int
|
||||
|
||||
// get int by index from int slice
|
||||
func (a argInt) Get(i int, args ...int) (r int) {
|
||||
if i >= 0 && i < len(a) {
|
||||
r = a[i]
|
||||
@ -213,6 +236,7 @@ func (a argInt) Get(i int, args ...int) (r int) {
|
||||
|
||||
type argAny []interface{}
|
||||
|
||||
// get interface by index from interface slice
|
||||
func (a argAny) Get(i int, args ...interface{}) (r interface{}) {
|
||||
if i >= 0 && i < len(a) {
|
||||
r = a[i]
|
||||
@ -223,15 +247,18 @@ func (a argAny) Get(i int, args ...interface{}) (r interface{}) {
|
||||
return
|
||||
}
|
||||
|
||||
// parse time to string with location
|
||||
func timeParse(dateString, format string) (time.Time, error) {
|
||||
tp, err := time.ParseInLocation(format, dateString, DefaultTimeLoc)
|
||||
return tp, err
|
||||
}
|
||||
|
||||
// format time string
|
||||
func timeFormat(t time.Time, format string) string {
|
||||
return t.Format(format)
|
||||
}
|
||||
|
||||
// get pointer indirect type
|
||||
func indirectType(v reflect.Type) reflect.Type {
|
||||
switch v.Kind() {
|
||||
case reflect.Ptr:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user