@NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def post(self, repo_name, pull_request_id):

        repo = RepoModel()._get_repo(repo_name)

        pull_request = PullRequest.get_or_404(pull_request_id)

        old_description = pull_request.description

        _form = PullRequestPostForm()().to_python(request.POST)

        pull_request.title = _form['pullrequest_title']

        pull_request.description = _form['pullrequest_desc'].strip() or _('No description')

        PullRequestModel().mention_from_description(pull_request, old_description)

        Session().commit()

        h.flash(_('Pull request updated'), category='success')

        return redirect(pull_request.url())

    # pullrequest_update for updating reviewer list

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def update(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        if pull_request.is_closed():

            raise HTTPForbidden()

        #only owner or admin can update it

        owner = pull_request.author.user_id == c.authuser.user_id

        repo_admin = h.HasRepoPermissionAny('repository.admin')(c.repo_name)

        if h.HasPermissionAny('hg.admin') or repo_admin or owner:

            reviewers_ids = map(int, filter(lambda v: v not in [None, ''],

                request.POST.get('reviewers_ids', '').split(',')))

            PullRequestModel().update_reviewers(pull_request_id, reviewers_ids)

            Session().commit()

            return True

        raise HTTPForbidden()

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def delete(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        #only owner can delete it !

        if pull_request.author.user_id == c.authuser.user_id:

            PullRequestModel().delete(pull_request)

            Session().commit()

            h.flash(_('Successfully deleted pull request'),

                    category='success')

            return redirect(url('my_account_pullrequests'))

        raise HTTPForbidden()

    @LoginRequired()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    def show(self, repo_name, pull_request_id, extra=None):

        repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.user_groups_array = repo_model.get_user_groups_js()

        c.pull_request = PullRequest.get_or_404(pull_request_id)

        c.allowed_to_change_status = self._get_is_allowed_change_status(c.pull_request)

        cc_model = ChangesetCommentsModel()

        cs_model = ChangesetStatusModel()

        # pull_requests repo_name we opened it against

        # ie. other_repo must match

        if repo_name != c.pull_request.other_repo.repo_name:

            raise HTTPNotFound

        # load compare data into template context

        c.cs_repo = c.pull_request.org_repo

        (c.cs_ref_type,

         c.cs_ref_name,

         c.cs_rev) = c.pull_request.org_ref.split(':')

        c.a_repo = c.pull_request.other_repo

        (c.a_ref_type,

         c.a_ref_name,

         c.a_rev) = c.pull_request.other_ref.split(':') # other_rev is ancestor

        org_scm_instance = c.cs_repo.scm_instance # property with expensive cache invalidation check!!!

        c.cs_repo = c.cs_repo

        c.cs_ranges = [org_scm_instance.get_changeset(x) for x in c.pull_request.revisions]

        c.cs_ranges_org = None # not stored and not important and moving target - could be calculated ...

        revs = [ctx.revision for ctx in reversed(c.cs_ranges)]

        c.jsdata = json.dumps(graph_data(org_scm_instance, revs))

        c.available = []

        c.cs_branch_name = c.cs_ref_name

        other_scm_instance = c.a_repo.scm_instance

        if org_scm_instance.alias == 'hg' and c.a_ref_name != 'ancestor':

            if c.cs_ref_type != 'branch':

                c.cs_branch_name = org_scm_instance.get_changeset(c.cs_ref_name).branch # use ref_type ?

            other_branch_name = c.a_ref_name

            if c.a_ref_type != 'branch':

                other_branch_name = other_scm_instance.get_changeset(c.a_ref_name).branch # use ref_type ?

            # candidates: descendants of old head that are on the right branch

            #             and not are the old head itself ...

            #             and nothing at all if old head is a descendent of target ref name

            if other_scm_instance._repo.revs('present(%s)::&%s', c.cs_ranges[-1].raw_id, other_branch_name):

                c.update_msg = _('This pull request has already been merged to %s.') % other_branch_name

            else: # look for children of PR head on source branch in org repo

                arevs = org_scm_instance._repo.revs('%s:: & branch(%s) - %s',

                                                    revs[0], c.cs_branch_name, revs[0])

                if arevs:

                    if c.pull_request.is_closed():

                        c.update_msg = _('This pull request has been closed and can not be updated with descendent changes on %s:') % c.cs_branch_name

                    else:

                        c.update_msg = _('This pull request can be updated with descendent changes on %s:') % c.cs_branch_name

                    c.available = [org_scm_instance.get_changeset(x) for x in arevs]

                else:

                    c.update_msg = _('No changesets found for updating this pull request.')

            revs = org_scm_instance._repo.revs('head() & not (%s::) & branch(%s) & !closed()', revs[0], c.cs_branch_name)

            if revs:

                c.update_msg_other = _('Note: Branch %s also contains unrelated changes, such as %s.') % (c.cs_branch_name,

                    h.short_id(org_scm_instance.get_changeset((max(revs))).raw_id))

            else:

                c.update_msg_other = _('Branch %s does not contain other changes.') % c.cs_branch_name

        raw_ids = [x.raw_id for x in c.cs_ranges]

        c.cs_comments = c.cs_repo.get_comments(raw_ids)

        c.statuses = c.cs_repo.statuses(raw_ids)

        ignore_whitespace = request.GET.get('ignorews') == '1'

        line_context = request.GET.get('context', 3)

        c.ignorews_url = _ignorews_url

        c.context_url = _context_url

        c.fulldiff = request.GET.get('fulldiff')

        diff_limit = self.cut_off_limit if not c.fulldiff else None

        # we swap org/other ref since we run a simple diff on one repo

        log.debug('running diff between %s and %s in %s'

                  % (c.a_rev, c.cs_rev, org_scm_instance.path))

        txtdiff = org_scm_instance.get_diff(rev1=safe_str(c.a_rev), rev2=safe_str(c.cs_rev),

                                      ignore_whitespace=ignore_whitespace,

                                      context=line_context)

        diff_processor = diffs.DiffProcessor(txtdiff or '', format='gitdiff',

                                             diff_limit=diff_limit)

        _parsed = diff_processor.prepare()

        c.limited_diff = False

        if isinstance(_parsed, LimitedDiffContainer):

            c.limited_diff = True

        c.files = []

        c.changes = {}

        c.lines_added = 0

        c.lines_deleted = 0

        for f in _parsed:

            st = f['stats']

            c.lines_added += st['added']

            c.lines_deleted += st['deleted']

            fid = h.FID('', f['filename'])

            c.files.append([fid, f['operation'], f['filename'], f['stats']])

            htmldiff = diff_processor.as_html(enable_comments=True,

                                              parsed_lines=[f])

            c.changes[fid] = [f['operation'], f['filename'], htmldiff]

        # inline comments

        c.inline_cnt = 0

        c.inline_comments = cc_model.get_inline_comments(

                                c.db_repo.repo_id,

                                pull_request=pull_request_id)

        # count inline comments

        for __, lines in c.inline_comments:

            for comments in lines.values():

                c.inline_cnt += len(comments)

        # comments

        c.comments = cc_model.get_comments(c.db_repo.repo_id,

                                           pull_request=pull_request_id)

        # (badly named) pull-request status calculation based on reviewer votes

        (c.pull_request_reviewers,

         c.pull_request_pending_reviewers,

         c.current_voting_result,

         ) = cs_model.calculate_pull_request_result(c.pull_request)

        c.changeset_statuses = ChangesetStatus.STATUSES

        c.as_form = False

        c.ancestor = None # there is one - but right here we don't know which

        return render('/pullrequests/pullrequest_show.html')

    @LoginRequired()

    @NotAnonymous()

    @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',

                                   'repository.admin')

    @jsonify

    def comment(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        status = 0

        close_pr = False

        allowed_to_change_status = self._get_is_allowed_change_status(pull_request)

        if allowed_to_change_status:

            status = request.POST.get('changeset_status')

            close_pr = request.POST.get('save_close')

        text = request.POST.get('text', '').strip() or _('No comments.')

        if close_pr:

            text = _('Closing.') + '\n' + text

        comm = ChangesetCommentsModel().create(

            text=text,

            repo=c.db_repo.repo_id,

            user=c.authuser.user_id,

            pull_request=pull_request_id,

            f_path=request.POST.get('f_path'),

            line_no=request.POST.get('line'),

            status_change=(ChangesetStatus.get_status_lbl(status)

                           if status and allowed_to_change_status else None),

            closing_pr=close_pr

        )

  </ul>

</%def>

<%def name="repo_context_bar(current=None, rev=None)">

  <% rev = None if rev == 'tip' else rev %>

  <%

      def follow_class():

          if c.repository_following:

              return h.literal('following')

          else:

              return h.literal('follow')

  %>

  <%

    def is_current(selected):

        if selected == current:

            return h.literal('class="current"')

    %>

  <!--- CONTEXT BAR -->

  <div id="context-bar" class="box">

      <h2>

        %if h.is_hg(c.db_repo):

          <i class="icon-hg" style="color: #576622; font-size: 24px"></i>

        %endif

        %if h.is_git(c.db_repo):

          <i class="icon-git" style="color: #e85634; font-size: 24px"></i>

        %endif

        ## public/private

        %if c.db_repo.private:

          <i class="icon-lock"></i>

        %else:

          <i class="icon-unlock-alt"></i>

        %endif

        ${h.repo_link(c.db_repo.groups_and_repo)}

        %if current == 'createfork':

         - ${_('Create fork')}

        %endif

      </h2>

      <!--

      <div id="breadcrumbs">

        ${h.link_to(_(u'Repositories'),h.url('home'))}

        »

        ${h.repo_link(c.db_repo.groups_and_repo)}

      </div>

      -->

      <ul id="context-pages" class="horizontal-list">

        <li ${is_current('summary')}><a href="${h.url('summary_home', repo_name=c.repo_name)}"><i class="icon-file-text"></i> ${_('Summary')}</a></li>

        %if rev:

        <li ${is_current('changelog')}><a href="${h.url('changelog_file_home', repo_name=c.repo_name, revision=rev, f_path='')}"><i class="icon-time"></i> ${_('Changelog')}</a></li>

        %else:

        <li ${is_current('changelog')}><a href="${h.url('changelog_home', repo_name=c.repo_name)}"><i class="icon-time"></i> ${_('Changelog')}</a></li>

        %endif

        <li ${is_current('files')}><a href="${h.url('files_home', repo_name=c.repo_name, revision=rev or 'tip')}"><i class="icon-file"></i> ${_('Files')}</a></li>

        <li ${is_current('switch-to')}>

          <a href="#" id="branch_tag_switcher_2" class="dropdown"><i class="icon-random"></i> ${_('Switch To')}</a>

          <ul id="switch_to_list_2" class="switch_to submenu">

            <li><a href="#">${_('Loading...')}</a></li>

          </ul>

        </li>

        <li ${is_current('options')}>

             %if h.HasRepoPermissionAll('repository.admin')(c.repo_name):

               <a href="${h.url('edit_repo',repo_name=c.repo_name)}" class="dropdown"><i class="icon-cogs"></i> ${_('Options')}</a>

             %else:

               <a href="#" class="dropdown"><i class="icon-cogs"></i> ${_('Options')}</a>

             %endif

          <ul>

             %if h.HasRepoPermissionAll('repository.admin')(c.repo_name):

                   <li><a href="${h.url('edit_repo',repo_name=c.repo_name)}"><i class="icon-cog"></i> ${_('Settings')}</a></li>

             %endif

              %if c.db_repo.fork:

               <li><a href="${h.url('compare_url',repo_name=c.db_repo.fork.repo_name,org_ref_type=c.db_repo.landing_rev[0],org_ref_name=c.db_repo.landing_rev[1], other_repo=c.repo_name,other_ref_type='branch' if request.GET.get('branch') else c.db_repo.landing_rev[0],other_ref_name=request.GET.get('branch') or c.db_repo.landing_rev[1], merge=1)}">

                   <i class="icon-loop"></i> ${_('Compare fork')}</a></li>

              %endif

              <li><a href="${h.url('compare_home',repo_name=c.repo_name)}"><i class="icon-loop"></i> ${_('Compare')}</a></li>

              <li><a href="${h.url('search_repo',repo_name=c.repo_name)}"><i class="icon-search"></i> ${_('Search')}</a></li>

              %if h.HasRepoPermissionAny('repository.write','repository.admin')(c.repo_name) and c.db_repo.enable_locking:

                %if c.db_repo.locked[0]:

                  <li>${h.link_to(_('Unlock'), h.url('toggle_locking',repo_name=c.repo_name),class_='locking_del')}</li>

                %else:

                  <li>${h.link_to(_('Lock'), h.url('toggle_locking',repo_name=c.repo_name),class_='locking_add')}</li>

                %endif

              %endif

              ## TODO: this check feels wrong, it would be better to have a check for permissions

              ## also it feels like a job for the controller

              %if c.authuser.username != 'default':

                  <li>

                   <a class="${follow_class()}" onclick="javascript:toggleFollowingRepo(this,${c.db_repo.repo_id},'${str(h.get_token())}');">

                    <span class="show-follow"><i class="icon-heart-empty"></i> ${_('Follow')}</span>

                    <span class="show-following"><i class="icon-heart"></i> ${_('Unfollow')}</span>

                  </a>

                  </li>

                  <li><a href="${h.url('repo_fork_home',repo_name=c.repo_name)}"><i class="icon-code-fork"></i> ${_('Fork')}</a></li>

                  <li><a href="${h.url('pullrequest_home',repo_name=c.repo_name)}"><i class="icon-code-fork"></i> ${_('Create Pull Request')}</a></li>

              %endif

             </ul>

        </li>

        <li ${is_current('showpullrequest')}>

          <a href="${h.url('pullrequest_show_all',repo_name=c.repo_name)}" title="${_('Show Pull Requests for %s') % c.repo_name}"> <i class="icon-code-fork"></i> ${_('Pull Requests')}

            %if c.repository_pull_requests:

              <span>${c.repository_pull_requests}</span>

            %endif

          </a>

        </li>

      </ul>

  </div>

  <script type="text/javascript">

      YUE.on('branch_tag_switcher_2','mouseover',function(){

         var loaded = YUD.hasClass('branch_tag_switcher_2','loaded');

         if(!loaded){

             YUD.addClass('branch_tag_switcher_2','loaded');

             ypjax("${h.url('branch_tag_switcher',repo_name=c.repo_name)}",'switch_to_list_2',

                 function(o){},

                 function(o){YUD.removeClass('branch_tag_switcher_2','loaded');}

                 ,null);

         }

         return false;

      });

  </script>

  <!--- END CONTEXT BAR -->

</%def>

<%def name="menu(current=None)">

  <%

  def is_current(selected):

      if selected == current:

          return h.literal('class="current"')

  %>

  <ul id="quick" class="horizontal-list">

    <!-- repo switcher -->

    <li ${is_current('repositories')}>

      <input id="repo_switcher" name="repo_switcher" type="hidden">

    </li>

    ##ROOT MENU

    %if c.authuser.username != 'default':

      <li ${is_current('journal')}>

        <a class="menu_link" title="${_('Show recent activity')}"  href="${h.url('journal')}">

          <i class="icon-book"></i> ${_('Journal')}

        </a>

      </li>

    %else:

      <li ${is_current('journal')}>

        <a class="menu_link" title="${_('Public journal')}"  href="${h.url('public_journal')}">

          <i class="icon-book"></i> ${_('Public journal')}

        </a>

      </li>

    %endif

      <li ${is_current('gists')}>

        <a class="menu_link childs" title="${_('Show public gists')}"  href="${h.url('gists')}">

          <i class="icon-file-2"></i> ${_('Gists')}

        </a>

          <ul class="admin_menu">

            <li><a href="${h.url('new_gist', public=1)}"><i class="icon-file-alt"></i> ${_('Create new gist')}</a></li>

            <li><a href="${h.url('gists')}"><i class="icon-copy"></i> ${_('All public gists')}</a></li>

            %if c.authuser.username != 'default':

              <li><a href="${h.url('gists', public=1)}"><i class="icon-copy"></i> ${_('My public gists')}</a></li>

              <li><a href="${h.url('gists', private=1)}"><i class="icon-file-text"></i> ${_('My private gists')}</a></li>

            %endif

          </ul>

      </li>

    <li ${is_current('search')}>

        <a class="menu_link" title="${_('Search in repositories')}"  href="${h.url('search')}">

          <i class="icon-search"></i> ${_('Search')}

        </a>

    </li>

    % if h.HasPermissionAll('hg.admin')('access admin main page'):

      <li ${is_current('admin')}>

        <a class="menu_link childs" title="${_('Admin')}" href="${h.url('admin_home')}">

          <i class="icon-cog"></i> ${_('Admin')}

        </a>

        ${admin_menu()}

      </li>

    % elif c.authuser.repositories_admin or c.authuser.repository_groups_admin or c.authuser.user_groups_admin:

    <li ${is_current('admin')}>

        <a class="menu_link childs" title="${_('Admin')}">

          <i class="icon-cog"></i> ${_('Admin')}

        </a>

        ${admin_menu_simple(c.authuser.repositories_admin,

                            c.authuser.repository_groups_admin,

                            c.authuser.user_groups_admin or h.HasPermissionAny('hg.usergroup.create.true')())}

    </li>

    % endif

    <li ${is_current('my_pullrequests')}>

      <a class="menu_link" title="${_('My Pull Requests')}" href="${h.url('my_pullrequests')}">

        <i class="icon-code-fork"></i> ${_('My Pull Requests')}

        %if c.my_pr_count != 0:

          <span class="menu_link_notifications">${c.my_pr_count}</span>