"""

        Get's default revision to do compare on pull request

        :param repo:

        """

        repo = repo.scm_instance

        if 'default' in repo.branches:

            return 'default'

        else:

            #if repo doesn't have default branch return first found

            return repo.branches.keys()[0]

    def show_all(self, repo_name):

        c.pull_requests = PullRequestModel().get_all(repo_name)

        c.repo_name = repo_name

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

    @NotAnonymous()

    def index(self):

        org_repo = c.rhodecode_db_repo

        if org_repo.scm_instance.alias != 'hg':

            log.error('Review not available for GIT REPOS')

            raise HTTPNotFound

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

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

            diff = diff_processor.as_html(enable_comments=enable_comments,

                                          parsed_lines=[f])

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

    def show(self, repo_name, pull_request_id):

        repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.users_groups_array = repo_model.get_users_groups_js()

        c.pull_request = PullRequest.get_or_404(pull_request_id)

        c.target_repo = c.pull_request.org_repo.repo_name

        cc_model = ChangesetCommentsModel()

        cs_model = ChangesetStatusModel()

        _cs_statuses = cs_model.get_statuses(c.pull_request.org_repo,

                                            pull_request=c.pull_request,

                                            with_revisions=True)

        cs_statuses = defaultdict(list)

        for st in _cs_statuses:

            cs_statuses[st.author.username] += [st]

        c.pull_request_reviewers = []

        c.pull_request_pending_reviewers = []

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

    @NotAnonymous()

    @jsonify

    def comment(self, repo_name, pull_request_id):

        pull_request = PullRequest.get_or_404(pull_request_id)

        if pull_request.is_closed():

            raise HTTPForbidden()

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

        change_status = request.POST.get('change_changeset_status')

        text = request.POST.get('text')

            text = text or (_('Status change -> %s')

                            % ChangesetStatus.get_status_lbl(status))

        comm = ChangesetCommentsModel().create(

            text=text,

            repo=c.rhodecode_db_repo.repo_id,

            user=c.rhodecode_user.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)

        )

        action_logger(self.rhodecode_user,

                      'user_commented_pull_request:%s' % pull_request_id,

                      c.rhodecode_db_repo, self.ip_addr, self.sa)

        Session().commit()

        if not request.environ.get('HTTP_X_PARTIAL_XHR'):

            return redirect(h.url('pullrequest_show', repo_name=repo_name,

                                  pull_request_id=pull_request_id))

        data = {

           'target_id': h.safeid(h.safe_unicode(request.POST.get('f_path'))),

        }

        if comm:

            c.co = comm

     ${inlines()}

    </div>

    %for co in c.comments:

        <div id="comment-tr-${co.comment_id}">

          ${comment_block(co)}

        </div>

    %endfor

</div>

</%def>

## MAIN COMMENT FORM

<div class="comments">

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

    <div class="comment-form ac">

        ${h.form(post_url)}

        <strong>${_('Leave a comment')}</strong>

        <div class="clearfix">

            <div class="comment-help">

                ${(_('Comments parsed using %s syntax with %s support.') % (('<a href="%s">RST</a>' % h.url('rst_help')),

          		'<span style="color:#003367" class="tooltip" title="%s">@mention</span>' %

          		_('Use @username inside this text to send notification to this RhodeCode user')))|n}

                | <label for="show_changeset_status_box" class="tooltip" title="${_('Check this to change current status of code-review for this changeset')}"> ${_('change status')}</label>

                  <input style="vertical-align: bottom;margin-bottom:-2px" id="show_changeset_status_box" type="checkbox" name="change_changeset_status" />

            </div>

            <div id="status_block_container" class="status-block" style="display:none">

                %for status,lbl in c.changeset_statuses:

                    <div class="">

                        <img src="${h.url('/images/icons/flag_status_%s.png' % status)}" /> <input ${'checked="checked"' if status == cur_status else ''}" type="radio" class="status_change_radio" name="changeset_status" id="${status}" value="${status}"> 

                        <label for="${status}">${lbl}</label>

                    </div>

                %endfor

            </div>

            <div class="mentions-container" id="mentions_container"></div>

             ${h.textarea('text')}

        </div>

        <div class="comment-button">

        ${h.submit('save', _('Comment'), class_="ui-btn large")}

        %endif

        </div>

        ${h.end_form()}

    </div>

    %endif

</div>

<script>

YUE.onDOMReady(function () {

   MentionsAutoComplete('text', 'mentions_container', _USERS_AC_DATA, _GROUPS_AC_DATA);

   // changeset status box listener

   YUE.on(YUD.get('show_changeset_status_box'),'change',function(e){

    ## template for inline comment form

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

    ${comment.comment_inline_form()}

    ## render comments and inlines

    ${comment.generate_comments()}

    % if not c.pull_request.is_closed():

      ## main comment form and it status

      ${comment.comments(h.url('pullrequest_comment', repo_name=c.repo_name,

                                pull_request_id=c.pull_request.pull_request_id),

                                c.current_changeset_status,

    %endif

    <script type="text/javascript">

      YUE.onDOMReady(function(){

    	  PullRequestAutoComplete('user', 'reviewers_container', _USERS_AC_DATA, _GROUPS_AC_DATA);

          YUE.on(YUQ('.show-inline-comments'),'change',function(e){

              var show = 'none';

              var target = e.currentTarget;

              if(target.checked){

                  var show = ''

              }