dal/pkg/filters/registry.go

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package filters
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import (
"reflect"
)
var FilterRegistry = map[string]IFilter{
"And": &And{},
"Or": &Or{},
"Eq": &Eq{},
"Ne": &Ne{},
"Gt": &Gt{},
"Gte": &Gte{},
"Lt": &Lt{},
"Lte": &Lte{},
"In": &In{},
"Nin": &NotIn{},
"Between": &Between{},
"NotBetween": &NotBetween{},
"Glob": &Glob{},
"Like": &Like{},
"NotLike": &NotLike{},
}
// RegisterFilter registers a new filter for a given name.
// `name` is the name of the filter, and `filter` is an empty instance (&reference) of the IFilter.
func RegisterFilter(name string, filter IFilter) {
FilterRegistry[name] = filter
}
func Convert(ctx Dialect, data interface{}) (string, []interface{}) {
for _, impl := range FilterRegistry {
filter := impl.FromJSON(data)
if reflect.DeepEqual(impl, filter) {
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continue
}
sfmt, values := filter.ToSQLPart(ctx)
if sfmt != "" {
return sfmt, values
}
}
return Eq{Eq: data}.ToSQLPart(ctx)
}