init: 初始化 AssetX 项目仓库

包含 webapp（Next.js 用户端）、webapp-back（Go 后端）、
antdesign（管理后台）、landingpage（营销落地页）、
数据库 SQL 和配置文件。

webapp-back/admin/invite_codes.go

@@ -0,0 +1,85 @@
+package admin
+
+import (
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/gothinkster/golang-gin-realworld-example-app/common"
+	"github.com/gothinkster/golang-gin-realworld-example-app/models"
+)
+
+func ListInviteCodes(c *gin.Context) {
+	db := common.GetDB()
+	p := ParsePagination(c)
+
+	query := db.Model(&models.InviteCode{})
+	if v := c.Query("wallet_address"); v != "" {
+		query = query.Where("wallet_address LIKE ?", "%"+v+"%")
+	}
+	if v := c.Query("code"); v != "" {
+		query = query.Where("code LIKE ?", "%"+v+"%")
+	}
+	if v := c.Query("is_active"); v != "" {
+		query = query.Where("is_active = ?", v == "true")
+	}
+
+	var total int64
+	query.Count(&total)
+
+	var items []models.InviteCode
+	if err := query.Order("id DESC").Offset(p.Offset()).Limit(p.PageSize).Find(&items).Error; err != nil {
+		Fail(c, http.StatusInternalServerError, "Failed to fetch invite codes")
+		return
+	}
+	OKList(c, items, total)
+}
+
+func ToggleInviteCode(c *gin.Context) {
+	db := common.GetDB()
+	var item models.InviteCode
+	if err := db.First(&item, c.Param("id")).Error; err != nil {
+		Fail(c, http.StatusNotFound, "Invite code not found")
+		return
+	}
+
+	item.IsActive = !item.IsActive
+	if item.CreatedAt.IsZero() {
+		item.CreatedAt = time.Now()
+	}
+	if err := db.Save(&item).Error; err != nil {
+		Fail(c, http.StatusInternalServerError, err.Error())
+		return
+	}
+
+	LogOp(c, "update", "invite_code", "toggle_invite_code", &item.ID, gin.H{"is_active": item.IsActive})
+	OK(c, item)
+}
+
+func UpdateInviteCode(c *gin.Context) {
+	db := common.GetDB()
+	var existing models.InviteCode
+	if err := db.First(&existing, c.Param("id")).Error; err != nil {
+		Fail(c, http.StatusNotFound, "Invite code not found")
+		return
+	}
+
+	var body struct {
+		ExpiresAt models.NullTime `json:"expires_at"`
+	}
+	if err := BindJSONFlexTime(c, &body); err != nil {
+		Fail(c, http.StatusBadRequest, err.Error())
+		return
+	}
+
+	existing.ExpiresAt = body.ExpiresAt
+	if existing.CreatedAt.IsZero() {
+		existing.CreatedAt = time.Now()
+	}
+	if err := db.Save(&existing).Error; err != nil {
+		Fail(c, http.StatusInternalServerError, err.Error())
+		return
+	}
+	LogOp(c, "update", "invite_code", "update_invite_code", &existing.ID, gin.H{"expires_at": body.ExpiresAt})
+	OK(c, existing)
+}