init: hgmj server initial commit

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

models/v/videocoupon/init.go

@@ -0,0 +1,39 @@
+package videocoupon
+
+import (
+	"fmt"
+
+	"91jd-server/common/db"
+	"91jd-server/models"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+)
+
+const table = models.VideoCoupon
+
+var mdb *db.MongoDB
+
+func Init() {
+	mdb = db.Init(table)
+	initIndex()
+}
+
+func coll(t *db.MongoTool) *db.MongoTool {
+	if t == nil {
+		return mdb.Coll(table)
+	}
+	return t.Coll(table)
+}
+
+// initIndex 初始化索引
+func initIndex() {
+	many := []mongo.IndexModel{
+		{
+			Keys: bson.D{{Key: "uid", Value: 1}, {Key: "num", Value: 1}},
+		},
+	}
+	if _, err := coll(nil).CreateIndex(many); err != nil {
+		panic(fmt.Sprintf("%s model set index err ==>[%+v]", table, err))
+	}
+}