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Code Issues Releases Activity

add comments for orm package, done

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This commit is contained in:
FuXiaoHei
2014-01-17 23:28:54 +08:00
parent 4c527dde65
commit 828a306069
14 changed files with 192 additions and 0 deletions
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11
orm/orm_conds.go
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@ -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
}