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Remove Chain.go

This commit is contained in:
Jinzhu 2013-11-16 11:37:00 +08:00
parent 3cfa19b761
commit b3db0b2959
1 changed files with 0 additions and 276 deletions
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276
chain.go
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@ -1,276 +0,0 @@
package gorm
import (
"errors"
"regexp"
)
type Chain struct {
d *DB
db sqlCommon
value interface{}
debug_mode bool
Errors []error
Error error
whereClause []map[string]interface{}
orClause []map[string]interface{}
notClause []map[string]interface{}
initAttrs []interface{}
assignAttrs []interface{}
selectStr string
orderStrs []string
offsetStr string
limitStr string
specifiedTableName string
unscoped bool
}
func (s *Chain) err(err error) error {
if err != nil {
s.Errors = append(s.Errors, err)
s.Error = err
s.warn(err)
}
return err
}
func (s *Chain) hasError() bool {
return s.Error != nil
}
func (s *Chain) deleteLastError() {
s.Error = nil
s.Errors = s.Errors[:len(s.Errors)-1]
}
func (s *Chain) do(value interface{}) *Do {
do := Do{
chain: s,
db: s.db,
whereClause: s.whereClause,
orClause: s.orClause,
notClause: s.notClause,
selectStr: s.selectStr,
orderStrs: s.orderStrs,
offsetStr: s.offsetStr,
limitStr: s.limitStr,
specifiedTableName: s.specifiedTableName,
unscoped: s.unscoped,
}
s.value = value
do.setModel(value)
return &do
}
func (s *Chain) Model(model interface{}) *Chain {
s.value = model
return s
}
func (s *Chain) Limit(value interface{}) *Chain {
if str, err := getInterfaceAsString(value); err == nil {
s.limitStr = str
} else {
s.err(errors.New("Can' understand the value of Limit, Should be int"))
}
return s
}
func (s *Chain) Offset(value interface{}) *Chain {
if str, err := getInterfaceAsString(value); err == nil {
s.offsetStr = str
} else {
s.err(errors.New("Can' understand the value of Offset, Should be int"))
}
return s
}
func (s *Chain) Order(value string, reorder ...bool) *Chain {
defer s.validSql(value)
if len(reorder) > 0 && reorder[0] {
s.orderStrs = []string{value}
} else {
s.orderStrs = append(s.orderStrs, value)
}
return s
}
func (s *Chain) Count(value interface{}) *Chain {
s.Select("count(*)").do(s.value).count(value)
return s
}
func (s *Chain) Select(value interface{}) *Chain {
defer func() { s.validSql(s.selectStr) }()
switch value := value.(type) {
case string:
s.selectStr = value
default:
s.err(errors.New("Can' understand the value of Select, Should be string"))
}
return s
}
func (s *Chain) Save(value interface{}) *Chain {
s.do(value).begin().save().commit_or_rollback()
return s
}
func (s *Chain) Delete(value interface{}) *Chain {
s.do(value).begin().delete().commit_or_rollback()
return s
}
func (s *Chain) Update(attrs ...interface{}) *Chain {
return s.Updates(toSearchableMap(attrs...), true)
}
func (s *Chain) Updates(values interface{}, ignore_protected_attrs ...bool) *Chain {
s.do(s.value).begin().setUpdateAttrs(values, ignore_protected_attrs...).update().commit_or_rollback()
return s
}
func (s *Chain) Exec(sql string) *Chain {
s.do(nil).exec(sql)
return s
}
func (s *Chain) Attrs(attrs ...interface{}) *Chain {
s.initAttrs = append(s.initAttrs, toSearchableMap(attrs...))
return s
}
func (s *Chain) Assign(attrs ...interface{}) *Chain {
s.assignAttrs = append(s.assignAttrs, toSearchableMap(attrs...))
return s
}
func (s *Chain) FirstOrInit(out interface{}, where ...interface{}) *Chain {
if s.First(out, where...).Error != nil {
s.deleteLastError()
s.do(out).where(where...).where(s.initAttrs).where(s.assignAttrs).initializeWithSearchCondition()
} else {
if len(s.assignAttrs) > 0 {
s.do(out).setUpdateAttrs(s.assignAttrs).prepareUpdateAttrs()
}
}
return s
}
func (s *Chain) FirstOrCreate(out interface{}, where ...interface{}) *Chain {
if s.First(out, where...).Error != nil {
s.deleteLastError()
s.do(out).where(where...).where(s.initAttrs).where(s.assignAttrs).initializeWithSearchCondition()
s.Save(out)
} else {
if len(s.assignAttrs) > 0 {
s.do(out).setUpdateAttrs(s.assignAttrs).update()
}
}
return s
}
func (s *Chain) Pluck(column string, value interface{}) (orm *Chain) {
s.do(s.value).pluck(column, value)
return s
}
func (s *Chain) Unscoped() *Chain {
s.unscoped = true
return s
}
func (s *Chain) Table(name string) *Chain {
s.specifiedTableName = name
return s
}
func (s *Chain) Related(value interface{}, foreign_keys ...string) *Chain {
original_value := s.value
s.do(value).related(original_value, foreign_keys...)
return s
}
func (s *Chain) Begin() *Chain {
if db, ok := s.db.(sqlDb); ok {
tx, err := db.Begin()
s.db = interface{}(tx).(sqlCommon)
s.err(err)
} else {
s.err(errors.New("Can't start a transaction."))
}
return s
}
func (s *Chain) Debug() *Chain {
s.debug_mode = true
return s
}
func (s *Chain) Commit() *Chain {
if db, ok := s.db.(sqlTx); ok {
s.err(db.Commit())
} else {
s.err(errors.New("Commit is not supported, no database transaction found."))
}
return s
}
func (s *Chain) Rollback() *Chain {
if db, ok := s.db.(sqlTx); ok {
s.err(db.Rollback())
} else {
s.err(errors.New("Rollback is not supported, no database transaction found."))
}
return s
}
func (s *Chain) CreateTable(value interface{}) *Chain {
s.do(value).createTable()
return s
}
func (s *Chain) DropTable(value interface{}) *Chain {
s.do(value).dropTable()
return s
}
func (s *Chain) AutoMigrate(value interface{}) *Chain {
s.do(value).autoMigrate()
return s
}
func (s *Chain) UpdateColumn(column string, typ string) *Chain {
s.do(s.value).updateColumn(column, typ)
return s
}
func (s *Chain) DropColumn(column string) *Chain {
s.do(s.value).dropColumn(column)
return s
}
func (s *Chain) AddIndex(column string, index_name ...string) *Chain {
s.do(s.value).addIndex(column, index_name...)
return s
}
func (s *Chain) RemoveIndex(column string) *Chain {
s.do(s.value).removeIndex(column)
return s
}
func (s *Chain) validSql(str string) (result bool) {
result = regexp.MustCompile("^\\s*[\\w\\s,.*()]*\\s*$").MatchString(str)
if !result {
s.err(InvalidSql)
}
return
}