Make permission values 0 based but stsarting with UNKNOWN because when doing permission+0 in SQL, we get a 1-based value

src/zm_group_permission.cpp

@@ -64,7 +64,7 @@ Group_Permission::Permission Group_Permission::getPermission(int monitor_id) {
 
 std::vector<Group_Permission> Group_Permission::find(int p_user_id) {
   std::vector<Group_Permission> results;
-  std::string sql = stringtf("SELECT `Id`,`UserId`,`GroupId`,`Permission` FROM Groups_Permissions WHERE `UserId`='%d'", p_user_id);
+  std::string sql = stringtf("SELECT `Id`,`UserId`,`GroupId`,`Permission`+0 FROM Groups_Permissions WHERE `UserId`='%d'", p_user_id);
 
   MYSQL_RES *result = zmDbFetch(sql.c_str());
 

src/zm_group_permission.h

@@ -27,7 +27,7 @@
 
 class Group_Permission {
  public:
-  typedef enum { PERM_INHERIT=0, PERM_NONE = 1, PERM_VIEW, PERM_EDIT } Permission;
+  typedef enum { PERM_UNKNOWN=0, PERM_INHERIT, PERM_NONE, PERM_VIEW, PERM_EDIT } Permission;
 
  protected:
   int id;

src/zm_monitor_permission.cpp

@@ -47,7 +47,7 @@ void Monitor_Permission::Copy(const Monitor_Permission &mp) {
 
 std::vector<Monitor_Permission> Monitor_Permission::find(int p_user_id) {
   std::vector<Monitor_Permission> results;
-  std::string sql = stringtf("SELECT `Id`,`UserId`,`MonitorId`,`Permission` FROM Monitors_Permissions WHERE `UserId`='%d'", p_user_id);
+  std::string sql = stringtf("SELECT `Id`,`UserId`,`MonitorId`,`Permission`+0 FROM Monitors_Permissions WHERE `UserId`='%d'", p_user_id);
 
   MYSQL_RES *result = zmDbFetch(sql.c_str());
 

src/zm_monitor_permission.h

@@ -27,7 +27,7 @@
 
 class Monitor_Permission {
  public:
-  typedef enum { PERM_INHERIT=0, PERM_NONE = 1, PERM_VIEW, PERM_EDIT } Permission;
+  typedef enum { PERM_UNKNOWN=0, PERM_INHERIT, PERM_NONE, PERM_VIEW, PERM_EDIT } Permission;
 
  protected:
   int id;