Open caibirdme opened 1 week ago
There're many cases that user want to use some new types such as JSON in sql. And new types are bound to related function calls. It's hard to enumerate them all, so we should give user a chance to insert some custom part of the sql in the where map.
// PartialSelection type PartialSelection interface { Generate() (string, []interface{}) } { "_custom_xx": typeA_impl_PartialSelection, "_custom_asd": typeB_impl_PartialSelection, }
the key must be prefixed with _custom_ which tells gendry to carefully handle the PartialSelection.
_custom_
And then, we can add some builtin functions that produce PartialSelection like:
func JSONContains(col, val, path string) PartialSelection
And user can also impl their owns as well
可以使用 Comparable 接口,与现有的操作符(=,< 等)实现的接口一致 //Comparable requires type implements the Build method type Comparable interface { Build() ([]string, []interface{}) }
There're many cases that user want to use some new types such as JSON in sql. And new types are bound to related function calls. It's hard to enumerate them all, so we should give user a chance to insert some custom part of the sql in the where map.
the key must be prefixed with
_custom_
which tells gendry to carefully handle the PartialSelection.And then, we can add some builtin functions that produce PartialSelection like:
And user can also impl their owns as well