@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.owner.user_id == c.authuser.user_id:

            PullRequestModel().delete(pull_request)

            Session().commit()

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

                    category='success')

            raise HTTPFound(location=url('my_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.is_range = False

        if c.a_ref_type == 'rev': # this looks like a free range where target is ancestor

            cs_a = org_scm_instance.get_changeset(c.a_rev)

            root_parents = c.cs_ranges[0].parents

            c.is_range = cs_a in root_parents

            #c.merge_root = len(root_parents) > 1 # a range starting with a merge might deserve a warning

        avail_revs = set()

        avail_show = []

        c.cs_branch_name = c.cs_ref_name

        other_scm_instance = c.a_repo.scm_instance

        c.update_msg = ""

        c.update_msg_other = ""

        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 ?

            c.a_branch_name = c.a_ref_name

            if c.a_ref_type != 'branch':

                try:

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

                except EmptyRepositoryError:

                    c.a_branch_name = 'null' # not a branch name ... but close enough

            # 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 descendant of target ref name

            if not c.is_range and other_scm_instance._repo.revs('present(%s)::&%s', c.cs_ranges[-1].raw_id, c.a_branch_name):

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

            elif c.pull_request.is_closed():

                c.update_msg = _('This pull request has been closed and can not be updated.')

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

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

                                                         revs[0], c.cs_branch_name)

                if len(avail_revs) > 1: # more than just revs[0]

                    # also show changesets that not are descendants but would be merged in

                    targethead = other_scm_instance.get_changeset(c.a_branch_name).raw_id

                    if org_scm_instance.path != other_scm_instance.path:

                        # Note: org_scm_instance.path must come first so all

                        # valid revision numbers are 100% org_scm compatible

                        # - both for avail_revs and for revset results

                        hgrepo = unionrepo.unionrepository(org_scm_instance.baseui,

                                                           org_scm_instance.path,

                                                           other_scm_instance.path)

                    else:

                        hgrepo = org_scm_instance._repo

                    show = set(hgrepo.revs('::%ld & !::parents(%s) & !::%s',

                                           avail_revs, revs[0], targethead))

                else:

                    show = set()

                    avail_revs = set() # drop revs[0]

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

                # TODO: handle branch heads that not are tip-most

                brevs = org_scm_instance._repo.revs('%s - %ld - %s', c.cs_branch_name, avail_revs, revs[0])

                if brevs:

                    # also show changesets that are on branch but neither ancestors nor descendants

                    show.update(org_scm_instance._repo.revs('::%ld - ::%ld - ::%s', brevs, avail_revs, c.a_branch_name))

                    show.add(revs[0]) # make sure graph shows this so we can see how they relate

                    c.update_msg_other = _('Note: Branch %s has another head: %s.') % (c.cs_branch_name,

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

                avail_show = sorted(show, reverse=True)

        elif org_scm_instance.alias == 'git':

            c.update_msg = _("Git pull requests don't support updates yet.")

        c.avail_revs = avail_revs

        c.avail_cs = [org_scm_instance.get_changeset(r) for r in avail_show]

        c.avail_jsdata = json.dumps(graph_data(org_scm_instance, avail_show))

        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)

          <div class="input">

            <div>

              ${h.link_to_ref(c.pull_request.org_repo.repo_name, c.cs_ref_type, c.cs_ref_name, c.cs_rev)}

              %if c.cs_ref_type != 'branch':

                ${_('on')} ${h.link_to_ref(c.pull_request.org_repo.repo_name, 'branch', c.cs_branch_name)}

              %endif

            </div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Target')}:</label>

          </div>

          <div class="input">

            %if c.is_range:

              ${_("This is just a range of changesets and doesn't have a target or a real merge ancestor.")}

            %else:

              ${h.link_to_ref(c.pull_request.other_repo.repo_name, c.a_ref_type, c.a_ref_name)}

              ## we don't know other rev - c.a_rev is ancestor and not necessarily on other_name_branch branch

            %endif

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Pull changes')}:</label>

          </div>

          <div class="input">

              <div>

               ## TODO: use cs_ranges[-1] or org_ref_parts[1] in both cases?

               %if h.is_hg(c.pull_request.org_repo):

                 <span style="font-family: monospace">hg pull ${c.pull_request.org_repo.clone_url()} -r ${h.short_id(c.cs_ranges[-1].raw_id)}</span>

               %elif h.is_git(c.pull_request.org_repo):

                 <span style="font-family: monospace">git pull ${c.pull_request.org_repo.clone_url()} ${c.pull_request.org_ref_parts[1]}</span>

               %endif

              </div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Created on')}:</label>

          </div>

          <div class="input">

              <div>${h.fmt_date(c.pull_request.created_on)}</div>

          </div>

        </div>

        <div class="field">

          <div class="label-summary">

              <label>${_('Owner')}:</label>

          </div>

          <div class="input pr-not-edit">

                  <div class="gravatar">

                    ${h.gravatar(c.pull_request.owner.email, size=20)}

                  </div>

                  <span>${c.pull_request.owner.full_name_and_username}</span><br/>

                  <span><a href="mailto:${c.pull_request.owner.email}">${c.pull_request.owner.email}</a></span><br/>

          </div>

          <div class="input pr-do-edit ac" style="display:none">

               ${h.text('owner', class_="large", value=c.pull_request.owner.username, placeholder=_('Username'))}

               <div id="owner_completion_container"></div>

          </div>

        </div>

        <div class="field">

            <div class="label-summary">

              <label>${_('Update')}:</label>

            </div>

            <div class="input">

              <div class="msg-div">${c.update_msg}</div>

              %if c.avail_revs:

              <div id="updaterevs" style="max-height:200px; overflow-y:auto; overflow-x:hidden; margin-bottom: 10px; padding: 1px 0">

                <div style="height:0">

                  <canvas id="avail_graph_canvas" style="width:0"></canvas>

                </div>

                <table id="updaterevs-table" class="noborder" style="padding-left:50px">

                  %for cnt, cs in enumerate(c.avail_cs):

                    <tr id="chg_available_${cnt+1}">

                      %if cs.revision == c.cs_ranges[-1].revision:

                        <td>

                          %if editable:

                            ${h.radio(name='updaterev', value='', checked=True)}

                          %endif

                        </td>

                        <td colspan="2">${_("Current revision - no change")}</td>

                      %else:

                        <td>

                          %if editable and cs.revision in c.avail_revs:

                            ${h.radio(name='updaterev', value=cs.raw_id)}

                          %endif

                        </td>

                        <td>${h.link_to(h.show_id(cs),h.url('changeset_home',repo_name=c.cs_repo.repo_name,revision=cs.raw_id))}</td>

                        <td><div class="message" style="white-space:normal; height:1.1em; max-width: 500px; padding:0">${h.urlify_commit(cs.message, c.repo_name)}</div></td>

                      %endif

                    </tr>

                  %endfor

                </table>

              </div>

              %endif

              <div class="msg-div">${c.update_msg_other}</div>

            </div>

        </div>

      </div>

    </div>

    ## REVIEWERS

    <div style="float:left; border-left:1px dashed #eee">

        <div class="pr-details-title">${_('Pull Request Reviewers')}</div>

        <div id="reviewers" style="padding:0px 0px 5px 10px">

          ## members goes here !

          <div>

            <ul id="review_members" class="group_members">

            %for member,status in c.pull_request_reviewers:

              ## WARNING: the HTML below is duplicate with

              ## kallithea/public/js/base.js

              ## If you change something here it should be reflected in the template too.

              <li id="reviewer_${member.user_id}">

                <div class="reviewers_member">

                    <div class="reviewer_status tooltip" title="${h.changeset_status_lbl(status.status if status else 'not_reviewed')}">

                      <i class="icon-circle changeset-status-${status.status if status else 'not_reviewed'}"></i>

                    </div>

                  <div class="reviewer_gravatar gravatar">

                    ${h.gravatar(member.email, size=14)}

                  </div>

                  <div style="float:left;">

                    ${member.full_name_and_username}

                    %if c.pull_request.user_id == member.user_id:

                      (${_('Owner')})

                    %endif

                  </div>

                  <input type="hidden" value="${member.user_id}" name="review_members" />

                  %if editable:

                  <div class="reviewer_member_remove action_button" onclick="removeReviewMember(${member.user_id})" title="${_('Remove reviewer')}">

                      <i class="icon-minus-circled"></i>

                  </div>

                  %endif

                </div>

              </li>

            %endfor

            </ul>

          </div>

          %if editable:

          <div class='ac'>

            <div class="reviewer_ac">

               ${h.text('user', class_='yui-ac-input',placeholder=_('Type name of reviewer to add'))}

               <div id="reviewers_container"></div>

            </div>

          </div>

          %endif

        </div>

        %if not c.pull_request_reviewers:

        <div class="pr-details-title">${_('Potential Reviewers')}</div>

        <div style="margin: 10px 0 10px 10px; max-width: 250px">

          <div>

            ${_('Click to add the repository owner as reviewer:')}

          </div>

          <ul style="margin-top: 10px">

            %for u in [c.pull_request.other_repo.user]:

              <li>

                <a class="missing_reviewer missing_reviewer_${u.user_id}"

                  user_id="${u.user_id}"

                  fname="${u.name}"

                  lname="${u.lastname}"

                  nname="${u.username}"

                  gravatar_lnk="${h.gravatar_url(u.email, size=28)}"

                  gravatar_size="14"

                  title="Click to add reviewer to the list, then Save Changes.">${u.full_name}</a>

              </li>

            %endfor

          </ul>

        </div>

        %endif

    </div>

    <div class="form" style="clear:both">

      <div class="fields">

        %if editable:

          <div class="buttons">

            ${h.submit('pr-form-save',_('Save Changes'),class_="btn btn-small")}

            ${h.reset('pr-form-reset',_('Cancel Changes'),class_="btn btn-small")}

          </div>

        %endif

      </div>

    </div>

  ${h.end_form()}

</div>

<div class="box">

    <div class="title">

      <div class="breadcrumbs">${_('Pull Request Content')}</div>

    </div>

    <div class="table">

          <div id="changeset_compare_view_content">

              <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

                  ${comment.comment_count(c.inline_cnt, len(c.comments))}

              </div>

              ##CS

              <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

                ${ungettext('Showing %s commit','Showing %s commits', len(c.cs_ranges)) % len(c.cs_ranges)}

              </div>

              <%include file="/compare/compare_cs.html" />

              <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

              ${_('Common ancestor')}:

              ${h.link_to(h.short_id(c.a_rev),h.url('changeset_home',repo_name=c.a_repo.repo_name,revision=c.a_rev))}

              </div>

              ## FILES

              <div style="font-size:1.1em;font-weight: bold;clear:both;padding-top:10px">

              % if c.limited_diff:

                  ${ungettext('%s file changed', '%s files changed', len(c.files)) % len(c.files)}

              % else:

                  ${ungettext('%s file changed with %s insertions and %s deletions','%s files changed with %s insertions and %s deletions', len(c.files)) % (len(c.files),c.lines_added,c.lines_deleted)}:

              %endif

              </div>

              <div class="cs_files">

                %if not c.files:

                   <span class="empty_data">${_('No files')}</span>

                %endif

                %for fid, change, f, stat in c.files:

                    <div class="cs_${change}">

                      <div class="node">

                          <i class="icon-diff-${change}"></i>

                          ${h.link_to(h.safe_unicode(f),'#' + fid)}

                      </div>

                      <div class="changes">${h.fancy_file_stats(stat)}</div>

                    </div>

                %endfor

              </div>

              % if c.limited_diff:

                <h5>${_('Changeset was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}">${_('Show full diff anyway')}</a></h5>

              % endif

          </div>

    </div>

    <script>

    var _USERS_AC_DATA = ${c.users_array|n};

    var _GROUPS_AC_DATA = ${c.user_groups_array|n};

    // TODO: switch this to pyroutes

    AJAX_COMMENT_URL = "${url('pullrequest_comment',repo_name=c.repo_name,pull_request_id=c.pull_request.pull_request_id)}";

    AJAX_COMMENT_DELETE_URL = "${url('pullrequest_comment_delete',repo_name=c.repo_name,comment_id='__COMMENT_ID__')}";

    pyroutes.register('pullrequest_comment', "${url('pullrequest_comment',repo_name='%(repo_name)s',pull_request_id='%(pull_request_id)s')}", ['repo_name', 'pull_request_id']);

    pyroutes.register('pullrequest_comment_delete', "${url('pullrequest_comment_delete',repo_name='%(repo_name)s',comment_id='%(comment_id)s')}", ['repo_name', 'comment_id']);

    </script>

    ## diff block

    <div class="commentable-diff">

    <%namespace name="diff_block" file="/changeset/diff_block.html"/>

    ${diff_block.diff_block_js()}

    ${diff_block.diff_block_simple(c.files, c.changes)}

    % if c.limited_diff:

      <h4>${_('Changeset was too big and was cut off...')} <a href="${h.url.current(fulldiff=1, **request.GET.mixed())}">${_('Show full diff anyway')}</a></h4>

    % endif

    </div>

    ## template for inline comment form

    ${comment.comment_inline_form()}

    ## render comments and inlines

    ${comment.generate_comments()}

    ## main comment form and it status

    ${comment.comments(change_status=c.allowed_to_change_status)}

    <script type="text/javascript">

      $(document).ready(function(){

          PullRequestAutoComplete($('#user'), $('#reviewers_container'), _USERS_AC_DATA);

          SimpleUserAutoComplete($('#owner'), $('#owner_completion_container'), _USERS_AC_DATA);

          $('.code-difftable').on('click', '.add-bubble', function(e){

              show_comment_form($(this));

          });