新版IP库管理阶段性提交（未完成）

internal/db/models/regions/region_town_model_ext.go

@@ -0,0 +1,57 @@
+package regions
+
+import (
+	"encoding/json"
+	"github.com/TeaOSLab/EdgeAPI/internal/remotelogs"
+	"github.com/iwind/TeaGo/lists"
+)
+
+func (this *RegionTown) DecodeCodes() []string {
+	if len(this.Codes) == 0 {
+		return []string{}
+	}
+	var result = []string{}
+	err := json.Unmarshal(this.Codes, &result)
+	if err != nil {
+		remotelogs.Error("RegionTown.DecodeCodes", err.Error())
+	}
+	return result
+}
+
+func (this *RegionTown) DecodeCustomCodes() []string {
+	if len(this.CustomCodes) == 0 {
+		return []string{}
+	}
+	var result = []string{}
+	err := json.Unmarshal(this.CustomCodes, &result)
+	if err != nil {
+		remotelogs.Error("RegionTown.DecodeCustomCodes", err.Error())
+	}
+	return result
+}
+
+func (this *RegionTown) DisplayName() string {
+	if len(this.CustomName) > 0 {
+		return this.CustomName
+	}
+	return this.Name
+}
+
+func (this *RegionTown) AllCodes() []string {
+	var codes = this.DecodeCodes()
+
+	if len(this.Name) > 0 && !lists.ContainsString(codes, this.Name) {
+		codes = append(codes, this.Name)
+	}
+
+	if len(this.CustomName) > 0 && !lists.ContainsString(codes, this.CustomName) {
+		codes = append(codes, this.CustomName)
+	}
+
+	for _, code := range this.DecodeCustomCodes() {
+		if !lists.ContainsString(codes, code) {
+			codes = append(codes, code)
+		}
+	}
+	return codes
+}