Exemplo n.º 1
0
 def update_tree(self,tree_dict):
     
     try:
         tree_dict = self.merged_tree(tree_dict)
     except:
         return False, ['invalid_parameters']
     
     if tree_dict['tree_name'] is None:
         return False, ['tree_not_found']
     
     if tree_dict['moderatorname'] is None:
         return False, ['unauthenticated']
     
     author_info = UserInfo.get_by_username(tree_dict['moderatorname'])
     
     if author_info is None or not self.is_user_info_current(author_info):
         return False, ['unauthenticated']
     
     if author_info.username is None:
         return False, ['invalid_user']
     
     tree = Tree.get_by_name(tree_dict['tree_name'])
     
     tree.conventions = tree_dict['conventions']
     
     tree.link_moderator_only = tree_dict['link_moderator_only']
     tree.link_max = tree_dict['link_max']
     tree.link_prompt = tree_dict['link_prompt']
     
     tree.content_moderator_only = tree_dict['content_moderator_only']
     tree.content_max = tree_dict['content_max']
     tree.content_prompt = tree_dict['content_prompt']
         
     tree.single_thread = tree_dict['single_thread']
     
     tree.branch_max = tree_dict['branch_max']
     
     tree.put()
     
     notification = Notification()
     notification.from_username = tree.moderatorname
     #only set the to_username when a different user is performing the action
     notification.notification_type = 'edit_tree'
     notification.tree_name = tree_dict['tree_name']
     notification.put()
         
     return True, tree
Exemplo n.º 2
0
 def delete_branch(self,authorname,urlsafe_key):
     
     userinfo = UserInfo.get_by_username(authorname)
     
     if userinfo is None or not self.is_user_info_current(userinfo):
         return False, [ 'unauthenticated' ]
     
     branch = ndb.Key(urlsafe=urlsafe_key).get()
     
     if len(branch.children()) != 0:
         return False, [ 'not_empty' ]
     
     tree = Tree.get_by_name(branch.tree_name)
     
     if branch.authorname != authorname and tree.moderatorname != authorname:
         return False, [ 'not_author' ]
     
     branch.detached_parent_branch = branch.parent_branch
     branch.parent_branch = None
     
     branch.put();
     branch.detached_parent_branch.get().empty_children_cache()
     
     return True, None
Exemplo n.º 3
0
    def save_branch(self,authorname,parent_urlsafe_key,link,content):
        
        userinfo = UserInfo.get_by_username(authorname)    
        if userinfo is None or not self.is_user_info_current(userinfo):
            
            return False, [ 'unauthenticated' ]
        
        branch = Branch()
        branch.authorname = authorname
        
        parent_key = ndb.Key(urlsafe=parent_urlsafe_key)
        parent_branch = parent_key.get()
        
        if parent_branch is None:
            return False, ['parent_branch_not_found']
        
        branch.tree_name = parent_branch.tree_name
        
        tree = Tree.get_by_name(parent_branch.tree_name)
        
        if tree is None:
            return False, ['tree_not_found']

        if tree.moderatorname == authorname or not tree.link_moderator_only:
            branch.link = link
        else:
            branch.link = ""
        
        if tree.moderatorname == authorname or not tree.content_moderator_only:
            branch.content = content
        else:
            branch.content = ""
        
        errors = self.validate_branch(tree, branch,authorname)
                    
#currently there is a db lock on unique links
#eventually we should have a memcache lcok
        
        authored_branch_count = 0
                
        branchs = parent_branch.children()
        
        if tree.single_thread and parent_branch.authorname == authorname:
            errors.append('has_single_thread_parent_branch')
        
        if tree.single_thread and len(branchs) > 0:
            errors.append('has_single_thread_branch')
        
        for branch_branch in branchs:
            if branch_branch.link == branch.link:
                errors.append('has_identical_link')
            if branch_branch.authorname == authorname:
                authored_branch_count += 1
        
        if tree.branch_max > 0 and tree.branch_max <= authored_branch_count:
            errors.append('has_branches')
        
        if len(errors) == 0:
            branch.revision = 0
            branch.parent_branch = parent_key
            branch.parent_branch_authorname = parent_branch.authorname
            branch.put()
            self.create_branch_version(branch)
            
            parent_branch.append_child(branch)
            
            notification = Notification()
            notification.from_username = branch.authorname
            if branch.authorname != parent_branch.authorname:
                notification.to_username = parent_branch.authorname
            notification.notification_type = 'new_branch'
            notification.branch = branch.key
            notification.branch_link = branch.link
            notification.tree_name = branch.tree_name
            notification.put()
            
            return True, branch
        else:
            return False, errors
Exemplo n.º 4
0
    def update_branch(self,authorname,urlsafe_key,link,content):
        
        userinfo = UserInfo.get_by_username(authorname)
        
        if userinfo is None or not self.is_user_info_current(userinfo):
            return False, [ 'unauthenticated' ]
        
        branch = ndb.Key(urlsafe=urlsafe_key).get()
        tree = Tree.get_by_name(branch.tree_name)
        
        if tree is None:
            return False, [ 'tree_not_found' ]
        
        if branch.authorname != authorname and tree.moderatorname != authorname:
            return False, [ 'not_author' ]
        
        if tree.moderatorname == authorname or not tree.link_moderator_only:
            branch.link = link
        if tree.moderatorname == authorname or not tree.content_moderator_only:
            branch.content = content
                
        errors = self.validate_branch(tree, branch,authorname)
        
#Comment on thread safety:
#Branch creation will be a VERY frequent operation. Multiple branchs with identical links
#Isn't an application error, just an annoyance for the user. So we allow this to occur
#without a lock in place
        parent_branch = None

        if branch.parent_branch is not None:
            parent_branch = branch.parent_branch.get();
                    
            branchs = parent_branch.children()
            
            for branch_branch in branchs:
                if branch_branch.link == branch.link and branch.key != branch_branch.key:
                    errors.append('has_identical_link')
            
        if len(errors) == 0:
            if branch.revision is None:
                branch.revision = 1
            else:
                branch.revision = branch.revision + 1
                
            branch.put()
            self.create_branch_version(branch)
            if parent_branch is not None:
                parent_branch.update_child(branch)
            
            notification = Notification()
            notification.from_username = authorname
            #only set the to_username when a different user is performing the action
            if branch.authorname != authorname:
                notification.to_username = branch.authorname
            notification.notification_type = 'edit_branch'
            notification.branch = branch.key
            notification.branch_link = branch.link
            notification.tree_name = branch.tree_name
            notification.put()
                
            return True, branch
        else:
            return False, errors