/// <summary>
/// Removes all users which ID's are stored in UsersToRemove, from the role with ID RoleID.
/// </summary>
/// <param name="userIDsToRemove">ArrayList with UserIDs of the users to Remove</param>
/// <param name="roleID">ID of role the users will be removed from</param>
/// <returns>true if succeeded, false otherwise</returns>
public static bool RemoveUsersFromRole(List <int> userIDsToRemove, int roleID)
{
if (userIDsToRemove.Count <= 0)
{
return(true);
}
// we'll delete all role-user combinations for the users in the given range plus for the given role.
// if there's just one user, we'll use an optimization, as the range query will result in an IN (param, param... ) query,
// and an field IN (param) query, is much slower compared to field = param, at least on Sqlserver.
// produce the filter which will be used to filter out the entities to delete.
PredicateExpression filter = new PredicateExpression();
if (userIDsToRemove.Count == 1)
{
// use compare value predicate instead
filter.Add((RoleUserFields.UserID == userIDsToRemove[0]));
}
else
{
// add a range filter
filter.Add((RoleUserFields.UserID == userIDsToRemove));
}
// add the filter for the role as with AND.
filter.AddWithAnd((RoleUserFields.RoleID == roleID));
// delete the entities directly from the database. As this gives a single DELETE statement, we don't have to start a transaction manually.
RoleUserCollection roleUsers = new RoleUserCollection();
return(roleUsers.DeleteMulti(filter) > 0);
}
/// <summary>
/// Deletes the given role from the system.
/// </summary>
/// <param name="roleID">ID of role to delete</param>
/// <returns>true if succeeded, false otherwise</returns>
public static bool DeleteRole(int roleID)
{
RoleEntity toDelete = SecurityGuiHelper.GetRole(roleID);
if (toDelete == null)
{
// not found
return(false);
}
Transaction trans = new Transaction(IsolationLevel.ReadCommitted, "DeleteRole");
try
{
// remove the role - forum - action right entities
ForumRoleForumActionRightCollection forumRoleActionRights = new ForumRoleForumActionRightCollection();
trans.Add(forumRoleActionRights);
forumRoleActionRights.DeleteMulti(ForumRoleForumActionRightFields.RoleID == roleID);
// Remove role-audit action entities
RoleAuditActionCollection roleAuditActions = new RoleAuditActionCollection();
trans.Add(roleAuditActions);
roleAuditActions.DeleteMulti(RoleAuditActionFields.RoleID == roleID);
// remove Role - systemright entities
RoleSystemActionRightCollection roleSystemRights = new RoleSystemActionRightCollection();
trans.Add(roleSystemRights);
roleSystemRights.DeleteMulti(RoleSystemActionRightFields.RoleID == roleID);
// remove Role - user entities
RoleUserCollection roleUsers = new RoleUserCollection();
trans.Add(roleUsers);
roleUsers.DeleteMulti(RoleUserFields.RoleID == roleID);
// delete the actual role
trans.Add(toDelete);
toDelete.Delete();
trans.Commit();
return(true);
}
catch
{
// error occured, rollback
trans.Rollback();
throw;
}
finally
{
trans.Dispose();
}
}
/// <summary>
/// Deletes the user with the ID passed in. Will reset all posts made by the user to the userid 0.
/// </summary>
/// <param name="userID">The user ID.</param>
/// <remarks>Can't delete user 0</remarks>
/// <returns>true if succeeded, false otherwise</returns>
public static bool DeleteUser(int userID)
{
if(userID == 0)
{
// can't delete the Anonymous coward user.
return false;
}
UserEntity toDelete = UserGuiHelper.GetUser(userID);
if(toDelete==null)
{
// user doesn't exist
return false;
}
// all actions have to take place in a transaction.
Transaction trans = new Transaction(IsolationLevel.ReadCommitted, "DeleteUser");
try
{
// we'll first update all PostedByUserId fields of all messages which are posted by the user to delete.
MessageEntity messageUpdater = new MessageEntity();
messageUpdater.PostedByUserID = 0; // reset to AC.
MessageCollection messages = new MessageCollection();
trans.Add(messages); // add to the transaction
// update all entities directly in the DB, which match the following filter and update them with the new values set in messageUpdater.
messages.UpdateMulti(messageUpdater, (MessageFields.PostedByUserID == userID));
// set the startuser of threads started by this user to 0
ThreadEntity threadUpdater = new ThreadEntity();
threadUpdater.StartedByUserID = 0;
ThreadCollection threads = new ThreadCollection();
trans.Add(threads);
threads.UpdateMulti(threadUpdater, (ThreadFields.StartedByUserID == userID));
// remove the user from the UserRoles set, as the user shouldn't be in any roles.
RoleUserCollection roleUsersDeleter = new RoleUserCollection();
trans.Add(roleUsersDeleter);
// delete all entities directly from the DB which match the following filter.
roleUsersDeleter.DeleteMulti(RoleUserFields.UserID == userID);
// delete all bookmarks of user
BookmarkCollection bookmarkDeleter = new BookmarkCollection();
trans.Add(bookmarkDeleter);
// delete all bookmarks for this user directly from the DB using the following filter.
bookmarkDeleter.DeleteMulti(BookmarkFields.UserID == userID);
// delete all audit data
AuditDataCoreCollection auditDataDeleter = new AuditDataCoreCollection();
// first fetch it, then delete all entities from the collection, as the audit data is in an inheritance hierarchy of TargetPerEntity which can't
// be deleted directly from the db.
trans.Add(auditDataDeleter);
auditDataDeleter.GetMulti(AuditDataCoreFields.UserID == userID);
auditDataDeleter.DeleteMulti();
// set IP bans set by this user to userid 0
IPBanEntity ipbanUpdater = new IPBanEntity();
ipbanUpdater.IPBanSetByUserID = 0;
IPBanCollection ipBans = new IPBanCollection();
trans.Add(ipBans);
ipBans.UpdateMulti(ipbanUpdater, (IPBanFields.IPBanSetByUserID == userID));
// delete threadsubscriptions
ThreadSubscriptionCollection threadSubscriptionsDeleter = new ThreadSubscriptionCollection();
trans.Add(threadSubscriptionsDeleter);
threadSubscriptionsDeleter.DeleteMulti(ThreadSubscriptionFields.UserID == userID);
// remove supportqueuethread claims
SupportQueueThreadCollection supportQueueThreads = new SupportQueueThreadCollection();
trans.Add(supportQueueThreads);
supportQueueThreads.DeleteMulti(SupportQueueThreadFields.ClaimedByUserID == userID);
// set all placed in queue references to userid 0, so the threads stay in the queues.
SupportQueueThreadEntity supportQueueThreadUpdater = new SupportQueueThreadEntity();
supportQueueThreadUpdater.PlacedInQueueByUserID=0;
supportQueueThreads.UpdateMulti(supportQueueThreadUpdater, (SupportQueueThreadFields.PlacedInQueueByUserID == userID));
// now delete the actual user entity
trans.Add(toDelete);
toDelete.Delete();
// all done
trans.Commit();
return true;
}
catch
{
trans.Rollback();
throw;
}
finally
{
trans.Dispose();
}
}
/// <summary>
/// Deletes the user with the ID passed in. Will reset all posts made by the user to the userid 0.
/// </summary>
/// <param name="userID">The user ID.</param>
/// <remarks>Can't delete user 0</remarks>
/// <returns>true if succeeded, false otherwise</returns>
public static bool DeleteUser(int userID)
{
if (userID == 0)
{
// can't delete the Anonymous coward user.
return(false);
}
UserEntity toDelete = UserGuiHelper.GetUser(userID);
if (toDelete == null)
{
// user doesn't exist
return(false);
}
// all actions have to take place in a transaction.
Transaction trans = new Transaction(IsolationLevel.ReadCommitted, "DeleteUser");
try
{
// we'll first update all PostedByUserId fields of all messages which are posted by the user to delete.
MessageEntity messageUpdater = new MessageEntity();
messageUpdater.PostedByUserID = 0; // reset to AC.
MessageCollection messages = new MessageCollection();
trans.Add(messages); // add to the transaction
// update all entities directly in the DB, which match the following filter and update them with the new values set in messageUpdater.
messages.UpdateMulti(messageUpdater, (MessageFields.PostedByUserID == userID));
// set the startuser of threads started by this user to 0
ThreadEntity threadUpdater = new ThreadEntity();
threadUpdater.StartedByUserID = 0;
ThreadCollection threads = new ThreadCollection();
trans.Add(threads);
threads.UpdateMulti(threadUpdater, (ThreadFields.StartedByUserID == userID));
// remove the user from the UserRoles set, as the user shouldn't be in any roles.
RoleUserCollection roleUsersDeleter = new RoleUserCollection();
trans.Add(roleUsersDeleter);
// delete all entities directly from the DB which match the following filter.
roleUsersDeleter.DeleteMulti(RoleUserFields.UserID == userID);
// delete all bookmarks of user
BookmarkCollection bookmarkDeleter = new BookmarkCollection();
trans.Add(bookmarkDeleter);
// delete all bookmarks for this user directly from the DB using the following filter.
bookmarkDeleter.DeleteMulti(BookmarkFields.UserID == userID);
// delete all audit data
AuditDataCoreCollection auditDataDeleter = new AuditDataCoreCollection();
// first fetch it, then delete all entities from the collection, as the audit data is in an inheritance hierarchy of TargetPerEntity which can't
// be deleted directly from the db.
trans.Add(auditDataDeleter);
auditDataDeleter.GetMulti(AuditDataCoreFields.UserID == userID);
auditDataDeleter.DeleteMulti();
// set IP bans set by this user to userid 0
IPBanEntity ipbanUpdater = new IPBanEntity();
ipbanUpdater.IPBanSetByUserID = 0;
IPBanCollection ipBans = new IPBanCollection();
trans.Add(ipBans);
ipBans.UpdateMulti(ipbanUpdater, (IPBanFields.IPBanSetByUserID == userID));
// delete threadsubscriptions
ThreadSubscriptionCollection threadSubscriptionsDeleter = new ThreadSubscriptionCollection();
trans.Add(threadSubscriptionsDeleter);
threadSubscriptionsDeleter.DeleteMulti(ThreadSubscriptionFields.UserID == userID);
// remove supportqueuethread claims
SupportQueueThreadCollection supportQueueThreads = new SupportQueueThreadCollection();
trans.Add(supportQueueThreads);
supportQueueThreads.DeleteMulti(SupportQueueThreadFields.ClaimedByUserID == userID);
// set all placed in queue references to userid 0, so the threads stay in the queues.
SupportQueueThreadEntity supportQueueThreadUpdater = new SupportQueueThreadEntity();
supportQueueThreadUpdater.PlacedInQueueByUserID = 0;
supportQueueThreads.UpdateMulti(supportQueueThreadUpdater, (SupportQueueThreadFields.PlacedInQueueByUserID == userID));
// now delete the actual user entity
trans.Add(toDelete);
toDelete.Delete();
// all done
trans.Commit();
return(true);
}
catch
{
trans.Rollback();
throw;
}
finally
{
trans.Dispose();
}
}
/// <summary>
/// Removes all users which ID's are stored in UsersToRemove, from the role with ID RoleID.
/// </summary>
/// <param name="userIDsToRemove">ArrayList with UserIDs of the users to Remove</param>
/// <param name="roleID">ID of role the users will be removed from</param>
/// <returns>true if succeeded, false otherwise</returns>
public static bool RemoveUsersFromRole(List<int> userIDsToRemove, int roleID)
{
if(userIDsToRemove.Count<=0)
{
return true;
}
// we'll delete all role-user combinations for the users in the given range plus for the given role.
// if there's just one user, we'll use an optimization, as the range query will result in an IN (param, param... ) query,
// and an field IN (param) query, is much slower compared to field = param, at least on Sqlserver.
// produce the filter which will be used to filter out the entities to delete.
PredicateExpression filter = new PredicateExpression();
if(userIDsToRemove.Count == 1)
{
// use compare value predicate instead
filter.Add((RoleUserFields.UserID == userIDsToRemove[0]));
}
else
{
// add a range filter
filter.Add((RoleUserFields.UserID == userIDsToRemove));
}
// add the filter for the role as with AND.
filter.AddWithAnd((RoleUserFields.RoleID == roleID));
// delete the entities directly from the database. As this gives a single DELETE statement, we don't have to start a transaction manually.
RoleUserCollection roleUsers = new RoleUserCollection();
return (roleUsers.DeleteMulti(filter) > 0);
}
/// <summary>
/// Deletes the given role from the system.
/// </summary>
/// <param name="roleID">ID of role to delete</param>
/// <returns>true if succeeded, false otherwise</returns>
public static bool DeleteRole(int roleID)
{
RoleEntity toDelete = SecurityGuiHelper.GetRole(roleID);
if(toDelete == null)
{
// not found
return false;
}
Transaction trans = new Transaction(IsolationLevel.ReadCommitted, "DeleteRole");
try
{
// remove the role - forum - action right entities
ForumRoleForumActionRightCollection forumRoleActionRights = new ForumRoleForumActionRightCollection();
trans.Add(forumRoleActionRights);
forumRoleActionRights.DeleteMulti(ForumRoleForumActionRightFields.RoleID == roleID);
// Remove role-audit action entities
RoleAuditActionCollection roleAuditActions = new RoleAuditActionCollection();
trans.Add(roleAuditActions);
roleAuditActions.DeleteMulti(RoleAuditActionFields.RoleID == roleID);
// remove Role - systemright entities
RoleSystemActionRightCollection roleSystemRights = new RoleSystemActionRightCollection();
trans.Add(roleSystemRights);
roleSystemRights.DeleteMulti(RoleSystemActionRightFields.RoleID == roleID);
// remove Role - user entities
RoleUserCollection roleUsers = new RoleUserCollection();
trans.Add(roleUsers);
roleUsers.DeleteMulti(RoleUserFields.RoleID == roleID);
// delete the actual role
trans.Add(toDelete);
toDelete.Delete();
trans.Commit();
return true;
}
catch
{
// error occured, rollback
trans.Rollback();
throw;
}
finally
{
trans.Dispose();
}
}