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Add support for prev/next/self links when returning paginated results. To do this: 1) change "data" envelope from an array to a dict 2) move the "data" array to the "collection" property, which is an array of elements in the collection. 3) add @links dict keyed by link relation: self, next, prev. Each relation is an array of dicts with uri and rel keys. In this case there is only one element, but there is nothing preventing a relation from having multiple url's. So this follows the formatting needed for the general case. Relations are present only if it makes sense. So first page has no prev and last page has no next. 4) add @total_size with number of element selected if they were not paginated. Replicates data in X-Count-Total header. Changed index to start at 1. So the first page is page_index 1 and not page_index 0. (So I am no longer surprised when I set page_index to 1 and am missing a bunch of records 8-)). Also a small fixup, json response ends with a newline so printing the data, or using curl makes sure that anything printing after the json output (like shell prompts) is on a new line. Tests added for all cases.
author John Rouillard <rouilj@ieee.org>
date Sat, 09 Mar 2019 11:06:10 -0500
parents 5a7d18ce4dba
children 828bbf219e56
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<tal:block metal:define-macro="icing">
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title metal:define-slot="head_title">title goes here</title>
<link media="screen" href="@@file/defaultfonts.css" type="text/css" rel="alternate stylesheet" title="default fonts" />
<link rel="stylesheet" type="text/css" href="@@file/style.css" />
<meta http-equiv="Content-Type"
 tal:attributes="content string:text/html;; charset=${request/client/charset}" />
<script tal:replace="structure request/base_javascript">
</script>
<metal:x define-slot="more-javascript" />

</head>
<body
tal:define="
kw_create python:request.user.hasPermission('Create', 'keyword');
columns string:id,activity,title,creator,status;
columns_showall string:id,activity,title,creator,assignee,status;
status_notresolved string:-1,1,2,4;
">
  <div class="header">
    <h1><a href="/">Roundup Tracker - Issues</a></h1>
<div id="searchbox">
    <form name="searchform" method="get" action="issue" id="searchform">
      <div id="search">
       <input type="hidden" name="@columns"
              tal:attributes="value columns_showall"/>
       <input type="hidden" name="@sort" value="-activity" />
       <input type="hidden" name="@group" value="priority" />
       <input type="hidden" name="@filter" value="status"/>
       <input type="hidden" name="status" tal:attributes="value status_notresolved"/>
       <input class="input-text" id="search-text" name="@search_text" size="10" />
<input type="submit" id="submit" value="search in open issues" name="submit"
       class="input-button"/>
      </div>
     </form>
</div> <!-- searchbox -->
  </div>
  <div class="navigation">
  <div class="menu">
  <ul>
    <li><a href="http://www.roundup-tracker.org" title="home...">Home</a></li>
    <li><a href="http://pypi.python.org/pypi/roundup" title="Get it !">Download</a></li>
    <li><a href="http://www.roundup-tracker.org/docs.html" title="What you always wanted to know...">Docs</a></li>
    <li class="current"><a href="/" i18n:translate="">Issues</a>
     <ul tal:condition="python:request.user.hasPermission('View', 'issue')">
         <li tal:condition="python:request.user.hasPermission('Create', 'issue')">
          <a href="issue?@template=item" i18n:translate="">Create New</a>
         </li>
         <li><a href="#"
                tal:attributes="href python:request.indexargs_url('issue', {
                                '@sort': '-activity',
                                '@group': 'priority',
                                '@filter': 'status',
                                '@columns': columns_showall,
                                '@search_text': '',
                                'status': status_notresolved,
                                '@dispname': i18n.gettext('Show All'),
                                '@startwith': 0,
                                })"
                i18n:translate="">Show Open</a></li>
         <li><a href="#"
                tal:attributes="href python:request.indexargs_url('issue', {
                                '@sort': '-activity',
                                '@group': 'priority',
                                '@filter': 'status,assignee',
                                '@columns': columns,
                                '@search_text': '',
                                'status': status_notresolved,
                                'assignee': '-1',
                                '@dispname': i18n.gettext('Show Unassigned'),
                                '@startwith': 0,
                                })"
                i18n:translate="">Show Unassigned</a></li>
         <li>
           <a href="issue?@template=search&status=1" i18n:translate="">Search</a>
         </li>
         <li>
           <form method="post" tal:attributes="action request/base">
             <input type="submit" class="form-small" value="Show issue:"
                    i18n:attributes="value"/>
             <input class="form-small" size="4"
                    type="text" name="@number"/>
             <input type="hidden" name="@type" value="issue"/>
             <input type="hidden" name="@action" value="show"/>
	     <input name="@csrf" type="hidden"
		    tal:attributes="value python:utils.anti_csrf_nonce()">
           </form>
         </li>
       </ul>

   <ul>
     <li tal:condition="python:request.user.username=='anonymous'" class="submenu">
      <b i18n:translate="">User</b>
     <form method="post" tal:attributes="action request/base">
       <ul>
      <li>
       <tal:span i18n:translate="">Login</tal:span><br/>
       <input size="10" name="__login_name"/><br/>
       <input size="10" type="password" name="__login_password"/><br/>
       <input type="hidden" name="@action" value="Login"/>
       <input type="checkbox" name="remember" id="remember"/>
       <label for="remember" i18n:translate="">Remember me?</label><br/>
       <input class="form-small" type="submit" value="Login" i18n:attributes="value"/><br/>
   <input name="@csrf" type="hidden"
      tal:attributes="value python:utils.anti_csrf_nonce()">
  <input type="hidden" name="__came_from"
    tal:condition="exists:request/env/QUERY_STRING"
    tal:attributes="value string:${request/base}${request/env/PATH_INFO}?${request/env/QUERY_STRING}">
  <input type="hidden" name="__came_from"
    tal:condition="not:exists:request/env/QUERY_STRING"
    tal:attributes="value string:${request/base}${request/env/PATH_INFO}">
       <span tal:replace="structure request/indexargs_form" />
       </li>
       <li>
       <a href="user?@template=register"
          tal:condition="python:request.user.hasPermission('Register', 'user')"
          i18n:translate="">Register</a>
	</li>
       <li><a href="user?@template=forgotten" i18n:translate="">Lost&nbsp;your&nbsp;login?</a>
       </li>
       </ul>
      </form>
     </li>

     <li tal:condition="python:request.user.username != 'anonymous'" class="submenu">
   <p class="label"><b tal:replace="python:request.user.username.plain(escape=1)">username</b></p>
    <ul>
    <li>
    <a href="#"
       tal:attributes="href python:request.indexargs_url('issue', {
      '@sort': '-activity',
      '@group': 'priority',
      '@filter': 'status,assignee',
      '@columns': 'id,activity,title,creator,status',
      '@search_text': '',
      'status': status_notresolved,
      'assignee': request.user.id,
      '@dispname': i18n.gettext('Your Issues'),
      '@startwith': 0,
     })"
    i18n:translate="">Your Issues</a>
    </li>
    <li>
       <a tal:attributes="href string:user${request/user/id}"
          i18n:translate="">Your Details</a>
    </li>
    <li>
       <a tal:attributes="href python:request.indexargs_url('',
          {'@action':'logout'})" i18n:translate="">Logout</a>
    </li>
     <li class=""
         tal:condition="python:request.user.hasPermission('View', 'query')">
   <span i18n:translate=""><b>Your Queries</b> (<a class="nomargin" href="query?@template=edit">edit</a>)</span><br/>
   <ul tal:repeat="qs request/user/queries">
    <li><a href="#" tal:attributes="href string:${qs/klass}?${qs/url}&@dispname=${qs/name/url_quote}"
       tal:content="qs/name">link</a></li>
   </ul>
     </li>
     <li class=""
         tal:condition="python:request.user.hasPermission('View', 'user')">
   <b i18n:translate="">Administration</b>
   <ul>
   <li tal:condition="python:request.user.hasPermission('Edit', None)">
    <a href="home?@template=classlist" i18n:translate="">Class List</a>
   </li>
   <li tal:condition="python:request.user.hasPermission('View', 'user')
                            or request.user.hasPermission('Edit', 'user')">
    <a href="user?@sort=username"  i18n:translate="">User List</a>
   </li>
   <li tal:condition="python:request.user.hasPermission('Create', 'user')"><a href="user?@template=item" i18n:translate="">Add User</a>
   </li>
   <li tal:condition="python:request.user.hasPermission('Edit',
 'keyword')"><a href="keyword" i18n:translate="">Edit Keywords</a>
   </li>
<!--   <li tal:condition="python:request.user.hasPermission('SB: May Classify',None)"><a href="msg?@sort=-spambayes_score">View Spam</a>
   </li>-->
   </ul>
     </li>
    </ul>
   </li>
  </ul>

     </li>
    <li><a href="http://www.roundup-tracker.org/contact.html" title="Get in touch.">Contact</a></li>
    <li><a href="http://wiki.roundup-tracker.org" title="Share your ideas...">Wiki</a></li>
    <li><a href="http://www.roundup-tracker.org/code.html" title="Be the sources with you.">Code</a></li>
  </ul>
 </div> <!-- menu -->
</div> <!-- navigation -->

<div class="content">
<h1 id="breadcrumb"><span metal:define-slot="body_title">body title</span></h1>
 <p tal:condition="options/error_message | nothing" class="error-message"
    tal:repeat="m options/error_message"
    tal:content="structure string:$m <br/ > " />
 <p tal:condition="options/ok_message | nothing" class="ok-message">
  <span tal:repeat="m options/ok_message"
        tal:content="structure string:$m <br/ > " />
  <a class="form-small" tal:attributes="href request/current_url"
     i18n:translate="">clear this message</a>
 </p>
 <tal:block metal:define-slot="content">Page content goes here</tal:block>
</div> <!-- content -->
<div class="footer">
<div class="credits">
   <a href="http://www.upfrontsystems.co.za/" title="issue tracker hosting provided by Upfront Systems, South Africa">hosting by Upfront Systems</a>
  </div> <!-- credits -->
<!-- Created: Wed Jan 14 11:55:38 EST 2009 -->
<!-- hhmts start -->
Last modified: Tue Feb  3 22:02:04 EST 2009
<!-- hhmts end -->
</div> <!-- footer -->

<pre tal:condition="request/form/deissue | nothing" tal:content="request">
</pre>

</body>
</html>
</tal:block>

<!--
The following macros are intended to be used in search pages.

The invoking context must define a "name" variable which names the
property being searched.

See issue.search.html in the classic template for examples.
-->

<!-- creates a th and a label: -->
<th metal:define-macro="th_label"
    tal:define="required required | python:[]"
    tal:attributes="class python:(name in required) and 'required' or nothing">
  <label tal:attributes="for name" tal:content="label" i18n:translate="">text</label>
	<metal:x define-slot="behind_the_label" />
</th>

<td metal:define-macro="search_input">
  <input tal:attributes="value python:request.form.getvalue(name) or nothing;
                         name name;
                         id name"/>
</td>

<td metal:define-macro="search_date">
  <input tal:attributes="value python:request.form.getvalue(name) or nothing;
                         name name;
                         id name"/>
  <a class="classhelp"
	 tal:attributes="href python:'''javascript:help_window('issue?@template=calendar&property=%s&form=itemSynopsis', 300, 200)'''%name">(cal)</a>
</td>

<td metal:define-macro="search_popup">
  <!--
    context needs to specify the popup "columns" as a comma-separated
    string (eg. "id,title" or "id,name,description") as well as name
  -->
  <input tal:attributes="value python:request.form.getvalue(name) or nothing;
                         name name;
                         id name"/>
  <span tal:replace="structure python:db.issue.classhelp(columns,
                                      property=name)" />
</td>

<td metal:define-macro="search_select">
  <select tal:attributes="name name; id name"
          tal:define="value python:request.form.getvalue(name)">
    <option value="" i18n:translate="">don't care</option>
    <metal:slot define-slot="extra_options" />
    <option value="" i18n:translate="" disabled="disabled">------------</option>
    <option tal:repeat="s python:db[db_klass].list()"
            tal:attributes="value s/id; selected python:value == s.id"
            tal:content="python:s[db_content]"></option>
  </select>
</td>

<!-- like search_select, but translates the further values.
Could extend it (METAL 1.1 attribute "extend-macro")
-->
<td metal:define-macro="search_select_translated">
  <select tal:attributes="name name; id name"
          tal:define="value python:request.form.getvalue(name)">
    <option value="" i18n:translate="">don't care</option>
    <metal:slot define-slot="extra_options" />
    <option value="" i18n:translate="" disabled="disabled">------------</option>
    <option tal:repeat="s python:db[db_klass].list()"
            tal:attributes="value s/id; selected python:value == s.id"
						tal:content="python:s[db_content]"
						i18n:translate=""></option>
  </select>
</td>

<!-- currently, there is no convenient API to get a list of all roles -->
<td metal:define-macro="search_select_roles"
	  tal:define="onchange onchange | nothing">
  <select name=roles id=roles tal:attributes="onchange onchange">
    <option value="" i18n:translate="">don't care</option>
    <option value="" i18n:translate="" disabled="disabled">------------</option>
    <option value="User">User</option>
    <option value="Developer">Developer</option>
    <option value="Coordinator">Coordinator</option>
  </select>
</td>

<td metal:define-macro="search_multiselect">
  <input tal:attributes="value python:request.form.getvalue(name) or nothing;
                         name name;
                         id name"/>
  <span tal:replace="structure python:db[db_klass].classhelp(db_content,
                                        property=name, width='600')" />
</td>

<td metal:define-macro="search_checkboxes">
 <ul class="search-checkboxes"
     tal:define="value python:request.form.getvalue(name);
                 values python:value and value.split(',') or []">
 <li tal:repeat="s python:db[db_klass].list()">
  <input type="checkbox" tal:attributes="name name; id string:$name-${s/id};
    value s/id; checked python:s.id in values" />
  <label tal:attributes="for string:$name-${s/id}"
         tal:content="python:s[db_content]" />
 </li>
 <li metal:define-slot="no_value_item">
  <input type="checkbox" value="-1" tal:attributes="name name;
     id string:$name--1; checked python:value == '-1'" />
  <label tal:attributes="for string:$name--1" i18n:translate="">no value</label>
 </li>
 </ul>
</td>

<td metal:define-macro="column_input">
  <input type="checkbox" name="@columns"
         tal:attributes="value name;
                         checked python:name in cols"/>
</td>

<td metal:define-macro="sort_input">
  <input type="radio" name="@sort"
         tal:attributes="value name;
                         checked python:name == sort_on"/>
</td>

<td metal:define-macro="group_input">
  <input type="radio" name="@group"
         tal:attributes="value name;
                         checked python:name == group_on"/>
</td>

<!--
The following macros are intended for user editing.

The invoking context must define a "name" variable which names the
property being searched; the "edit_ok" variable tells whether the
current user is allowed to edit.

See user.item.html in the classic template for examples.
-->
<script metal:define-macro="user_utils" type="text/javascript" src="@@file/user_utils.js"></script>

<!-- src: value will be re-used for other input fields -->
<input metal:define-macro="user_src_input"
    type="text" tal:attributes="onblur python:edit_ok and 'split_name(this)';
    id name; name name; value value; readonly not:edit_ok"
    value="heinz.kunz"/>
<!-- normal: no re-using -->
<input metal:define-macro="user_normal_input" type="text"
    tal:attributes="id name; name name; value value; readonly not:edit_ok"
    value="heinz"/>
<!-- password: type; no initial value -->
    <input metal:define-macro="user_pw_input" type="password"
    tal:attributes="id name; name name; readonly not:edit_ok" value=""/>
    <input metal:define-macro="user_confirm_input" type="password"
    tal:attributes="id name; name string:@confirm@$name; readonly not:edit_ok" value=""/>
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