[wip] impove filter interfaces

Signed-off-by: Anton Nesterov <anton@demiurg.io>

pkg/dal/convert.go

@@ -1,21 +1,19 @@
 package dal
 
 import (
-	"fmt"
 	"strings"
 
 	filters "l12.xyz/dal/filters"
 )
 
-func CovertFind(find filters.Find, ctx filters.Context) string {
+func CovertFind(find Find, ctx Context) string {
 	expressions := []string{}
 	for key, value := range find {
-		values, err := filters.Convert(ctx.New(map[string]string{
+		context := ctx.New(CtxOpts{
 			"FieldName": key,
-		}), value)
+		})
+		values, _ := filters.Convert(context, value)
 		expressions = append(expressions, values)
-		fmt.Println(err)
-
 	}
 	return strings.Join(expressions, " AND ")
 }

pkg/dal/convert_test.go

@@ -7,10 +7,10 @@ import (
 )
 
 func TestConvertFind(t *testing.T) {
-	find := f.Find{
+	find := Find{
 		"test":  "1",
 		"test2": "2",
-		"test3": f.Filter{
+		"test3": Filter{
 			"$ne": 1,
 		},
 	}

pkg/dal/types.go

@@ -0,0 +1,10 @@
+package dal
+
+import (
+	filters "l12.xyz/dal/filters"
+)
+
+type Find = filters.Find
+type Filter = filters.Filter
+type Context = filters.Context
+type CtxOpts = filters.CtxOpts

pkg/filters/context.go

@@ -14,7 +14,7 @@ type SQLiteContext struct {
 	FieldName  string
 }
 
-func (c SQLiteContext) New(opts map[string]string) Context {
+func (c SQLiteContext) New(opts CtxOpts) Context {
 	ta := opts["TableAlias"]
 	if ta == "" {
 		ta = c.TableAlias

pkg/filters/types.go

@@ -1,7 +1,8 @@
 package filters
 
+type CtxOpts map[string]string
 type Context interface {
-	New(opts map[string]string) Context
+	New(opts CtxOpts) Context
 	GetFieldName() string
 	NormalizeValue(interface{}) interface{}
 }