Add clan-purge and player-purge. Optimized performance with template-init.

controllers/clan_controller.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
+	"gorm.io/gorm/clause"
 	"log"
 	"net/http"
 )
@@ -131,6 +132,20 @@ func DeleteClanByID(c *gin.Context) {
 	}
 }
 
+// DeleteAllClans DELETE /admin/clan
+func DeleteAllClans(c *gin.Context) {
+	var clans []models.Clan
+	if err := models.DB.
+		Session(&gorm.Session{AllowGlobalUpdate: true}).
+		Clauses(clause.Returning{}).
+		Delete(&clans).Error; err != nil {
+		c.String(http.StatusBadRequest, "Purge failed! Error: "+err.Error())
+		return
+	}
+
+	c.String(http.StatusOK, "Purged "+utils.UintToString(uint(len(clans)))+" clans!")
+}
+
 func FindClanByName(out interface{}, name string) *gorm.DB {
 	return models.DB.Where("name = ?", name).First(out)
 }