<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang=""> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>django.views.i18n — Django 1.8.19 documentation</title> <link rel="stylesheet" href="../../../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../../../', VERSION: '1.8.19', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../../../_static/jquery.js"></script> <script type="text/javascript" src="../../../_static/underscore.js"></script> <script type="text/javascript" src="../../../_static/doctools.js"></script> <link rel="index" title="Index" href="../../../genindex.html" /> <link rel="search" title="Search" href="../../../search.html" /> <link rel="top" title="Django 1.8.19 documentation" href="../../../contents.html" /> <link rel="up" title="django" href="../../django.html" /> <script type="text/javascript" src="../../../templatebuiltins.js"></script> <script type="text/javascript"> (function($) { if (!django_template_builtins) { // templatebuiltins.js missing, do nothing. return; } $(document).ready(function() { // Hyperlink Django template tags and filters var base = "../../../ref/templates/builtins.html"; if (base == "#") { // Special case for builtins.html itself base = ""; } // Tags are keywords, class '.k' $("div.highlight\\-html\\+django span.k").each(function(i, elem) { var tagname = $(elem).text(); if ($.inArray(tagname, django_template_builtins.ttags) != -1) { var fragment = tagname.replace(/_/, '-'); $(elem).html("<a href='" + base + "#" + fragment + "'>" + tagname + "</a>"); } }); // Filters are functions, class '.nf' $("div.highlight\\-html\\+django span.nf").each(function(i, elem) { var filtername = $(elem).text(); if ($.inArray(filtername, django_template_builtins.tfilters) != -1) { var fragment = filtername.replace(/_/, '-'); $(elem).html("<a href='" + base + "#" + fragment + "'>" + filtername + "</a>"); } }); }); })(jQuery); </script> </head> <body role="document"> <div class="document"> <div id="custom-doc" class="yui-t6"> <div id="hd"> <h1><a href="../../../index.html">Django 1.8.19 documentation</a></h1> <div id="global-nav"> <a title="Home page" href="../../../index.html">Home</a> | <a title="Table of contents" href="../../../contents.html">Table of contents</a> | <a title="Global index" href="../../../genindex.html">Index</a> | <a title="Module index" href="../../../py-modindex.html">Modules</a> </div> <div class="nav"> <a href="../../index.html" title="Module code" accesskey="U">up</a></div> </div> <div id="bd"> <div id="yui-main"> <div class="yui-b"> <div class="yui-g" id="_modules-django-views-i18n"> <h1>Source code for django.views.i18n</h1><div class="highlight"><pre> <span></span><span class="kn">import</span> <span class="nn">gettext</span> <span class="k">as</span> <span class="nn">gettext_module</span> <span class="kn">import</span> <span class="nn">importlib</span> <span class="kn">import</span> <span class="nn">json</span> <span class="kn">import</span> <span class="nn">os</span> <span class="kn">from</span> <span class="nn">django</span> <span class="k">import</span> <span class="n">http</span> <span class="kn">from</span> <span class="nn">django.apps</span> <span class="k">import</span> <span class="n">apps</span> <span class="kn">from</span> <span class="nn">django.conf</span> <span class="k">import</span> <span class="n">settings</span> <span class="kn">from</span> <span class="nn">django.template</span> <span class="k">import</span> <span class="n">Context</span><span class="p">,</span> <span class="n">Engine</span> <span class="kn">from</span> <span class="nn">django.utils</span> <span class="k">import</span> <span class="n">six</span> <span class="kn">from</span> <span class="nn">django.utils._os</span> <span class="k">import</span> <span class="n">upath</span> <span class="kn">from</span> <span class="nn">django.utils.encoding</span> <span class="k">import</span> <span class="n">smart_text</span> <span class="kn">from</span> <span class="nn">django.utils.formats</span> <span class="k">import</span> <span class="n">get_format</span><span class="p">,</span> <span class="n">get_format_modules</span> <span class="kn">from</span> <span class="nn">django.utils.http</span> <span class="k">import</span> <span class="n">is_safe_url</span> <span class="kn">from</span> <span class="nn">django.utils.translation</span> <span class="k">import</span> <span class="p">(</span> <span class="n">LANGUAGE_SESSION_KEY</span><span class="p">,</span> <span class="n">check_for_language</span><span class="p">,</span> <span class="n">get_language</span><span class="p">,</span> <span class="n">to_locale</span><span class="p">,</span> <span class="p">)</span> <div class="viewcode-block" id="set_language"><a class="viewcode-back" href="../../../topics/i18n/translation.html#django.views.i18n.set_language">[docs]</a><span class="k">def</span> <span class="nf">set_language</span><span class="p">(</span><span class="n">request</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Redirect to a given url while setting the chosen language in the</span> <span class="sd"> session or cookie. The url and the language code need to be</span> <span class="sd"> specified in the request parameters.</span> <span class="sd"> Since this view changes how the user will see the rest of the site, it must</span> <span class="sd"> only be accessed as a POST request. If called as a GET request, it will</span> <span class="sd"> redirect to the page in the request (the 'next' parameter) without changing</span> <span class="sd"> any state.</span> <span class="sd"> """</span> <span class="nb">next</span> <span class="o">=</span> <span class="n">request</span><span class="o">.</span><span class="n">POST</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'next'</span><span class="p">,</span> <span class="n">request</span><span class="o">.</span><span class="n">GET</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'next'</span><span class="p">))</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">is_safe_url</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="nb">next</span><span class="p">,</span> <span class="n">host</span><span class="o">=</span><span class="n">request</span><span class="o">.</span><span class="n">get_host</span><span class="p">()):</span> <span class="nb">next</span> <span class="o">=</span> <span class="n">request</span><span class="o">.</span><span class="n">META</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'HTTP_REFERER'</span><span class="p">)</span> <span class="k">if</span> <span class="ow">not</span> <span class="n">is_safe_url</span><span class="p">(</span><span class="n">url</span><span class="o">=</span><span class="nb">next</span><span class="p">,</span> <span class="n">host</span><span class="o">=</span><span class="n">request</span><span class="o">.</span><span class="n">get_host</span><span class="p">()):</span> <span class="nb">next</span> <span class="o">=</span> <span class="s1">'/'</span> <span class="n">response</span> <span class="o">=</span> <span class="n">http</span><span class="o">.</span><span class="n">HttpResponseRedirect</span><span class="p">(</span><span class="nb">next</span><span class="p">)</span> <span class="k">if</span> <span class="n">request</span><span class="o">.</span><span class="n">method</span> <span class="o">==</span> <span class="s1">'POST'</span><span class="p">:</span> <span class="n">lang_code</span> <span class="o">=</span> <span class="n">request</span><span class="o">.</span><span class="n">POST</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">'language'</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span> <span class="k">if</span> <span class="n">lang_code</span> <span class="ow">and</span> <span class="n">check_for_language</span><span class="p">(</span><span class="n">lang_code</span><span class="p">):</span> <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">request</span><span class="p">,</span> <span class="s1">'session'</span><span class="p">):</span> <span class="n">request</span><span class="o">.</span><span class="n">session</span><span class="p">[</span><span class="n">LANGUAGE_SESSION_KEY</span><span class="p">]</span> <span class="o">=</span> <span class="n">lang_code</span> <span class="k">else</span><span class="p">:</span> <span class="n">response</span><span class="o">.</span><span class="n">set_cookie</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LANGUAGE_COOKIE_NAME</span><span class="p">,</span> <span class="n">lang_code</span><span class="p">,</span> <span class="n">max_age</span><span class="o">=</span><span class="n">settings</span><span class="o">.</span><span class="n">LANGUAGE_COOKIE_AGE</span><span class="p">,</span> <span class="n">path</span><span class="o">=</span><span class="n">settings</span><span class="o">.</span><span class="n">LANGUAGE_COOKIE_PATH</span><span class="p">,</span> <span class="n">domain</span><span class="o">=</span><span class="n">settings</span><span class="o">.</span><span class="n">LANGUAGE_COOKIE_DOMAIN</span><span class="p">)</span> <span class="k">return</span> <span class="n">response</span></div> <span class="k">def</span> <span class="nf">get_formats</span><span class="p">():</span> <span class="sd">"""</span> <span class="sd"> Returns all formats strings required for i18n to work</span> <span class="sd"> """</span> <span class="n">FORMAT_SETTINGS</span> <span class="o">=</span> <span class="p">(</span> <span class="s1">'DATE_FORMAT'</span><span class="p">,</span> <span class="s1">'DATETIME_FORMAT'</span><span class="p">,</span> <span class="s1">'TIME_FORMAT'</span><span class="p">,</span> <span class="s1">'YEAR_MONTH_FORMAT'</span><span class="p">,</span> <span class="s1">'MONTH_DAY_FORMAT'</span><span class="p">,</span> <span class="s1">'SHORT_DATE_FORMAT'</span><span class="p">,</span> <span class="s1">'SHORT_DATETIME_FORMAT'</span><span class="p">,</span> <span class="s1">'FIRST_DAY_OF_WEEK'</span><span class="p">,</span> <span class="s1">'DECIMAL_SEPARATOR'</span><span class="p">,</span> <span class="s1">'THOUSAND_SEPARATOR'</span><span class="p">,</span> <span class="s1">'NUMBER_GROUPING'</span><span class="p">,</span> <span class="s1">'DATE_INPUT_FORMATS'</span><span class="p">,</span> <span class="s1">'TIME_INPUT_FORMATS'</span><span class="p">,</span> <span class="s1">'DATETIME_INPUT_FORMATS'</span> <span class="p">)</span> <span class="n">result</span> <span class="o">=</span> <span class="p">{}</span> <span class="k">for</span> <span class="n">module</span> <span class="ow">in</span> <span class="p">[</span><span class="n">settings</span><span class="p">]</span> <span class="o">+</span> <span class="n">get_format_modules</span><span class="p">(</span><span class="n">reverse</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span> <span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="n">FORMAT_SETTINGS</span><span class="p">:</span> <span class="n">result</span><span class="p">[</span><span class="n">attr</span><span class="p">]</span> <span class="o">=</span> <span class="n">get_format</span><span class="p">(</span><span class="n">attr</span><span class="p">)</span> <span class="n">formats</span> <span class="o">=</span> <span class="p">{}</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">result</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="p">(</span><span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">,</span> <span class="nb">int</span><span class="p">)):</span> <span class="n">formats</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">smart_text</span><span class="p">(</span><span class="n">v</span><span class="p">)</span> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">v</span><span class="p">,</span> <span class="p">(</span><span class="nb">tuple</span><span class="p">,</span> <span class="nb">list</span><span class="p">)):</span> <span class="n">formats</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">smart_text</span><span class="p">(</span><span class="n">value</span><span class="p">)</span> <span class="k">for</span> <span class="n">value</span> <span class="ow">in</span> <span class="n">v</span><span class="p">]</span> <span class="k">return</span> <span class="n">formats</span> <span class="n">js_catalog_template</span> <span class="o">=</span> <span class="s2">r"""</span> <span class="s2">{% autoescape off %}</span> <span class="s2">(function (globals) {</span> <span class="s2"> var django = globals.django || (globals.django = </span><span class="si">{}</span><span class="s2">);</span> <span class="s2"> {</span><span class="si">% i</span><span class="s2">f plural %}</span> <span class="s2"> django.pluralidx = function (n) {</span> <span class="s2"> var v={{ plural }};</span> <span class="s2"> if (typeof(v) == 'boolean') {</span> <span class="s2"> return v ? 1 : 0;</span> <span class="s2"> } else {</span> <span class="s2"> return v;</span> <span class="s2"> }</span> <span class="s2"> };</span> <span class="s2"> {</span><span class="si">% e</span><span class="s2">lse %}</span> <span class="s2"> django.pluralidx = function (count) { return (count == 1) ? 0 : 1; };</span> <span class="s2"> {</span><span class="si">% e</span><span class="s2">ndif %}</span> <span class="s2"> {</span><span class="si">% i</span><span class="s2">f catalog_str %}</span> <span class="s2"> /* gettext library */</span> <span class="s2"> django.catalog = {{ catalog_str }};</span> <span class="s2"> django.gettext = function (msgid) {</span> <span class="s2"> var value = django.catalog[msgid];</span> <span class="s2"> if (typeof(value) == 'undefined') {</span> <span class="s2"> return msgid;</span> <span class="s2"> } else {</span> <span class="s2"> return (typeof(value) == 'string') ? value : value[0];</span> <span class="s2"> }</span> <span class="s2"> };</span> <span class="s2"> django.ngettext = function (singular, plural, count) {</span> <span class="s2"> var value = django.catalog[singular];</span> <span class="s2"> if (typeof(value) == 'undefined') {</span> <span class="s2"> return (count == 1) ? singular : plural;</span> <span class="s2"> } else {</span> <span class="s2"> return value[django.pluralidx(count)];</span> <span class="s2"> }</span> <span class="s2"> };</span> <span class="s2"> django.gettext_noop = function (msgid) { return msgid; };</span> <span class="s2"> django.pgettext = function (context, msgid) {</span> <span class="s2"> var value = django.gettext(context + '\x04' + msgid);</span> <span class="s2"> if (value.indexOf('\x04') != -1) {</span> <span class="s2"> value = msgid;</span> <span class="s2"> }</span> <span class="s2"> return value;</span> <span class="s2"> };</span> <span class="s2"> django.npgettext = function (context, singular, plural, count) {</span> <span class="s2"> var value = django.ngettext(context + '\x04' + singular, context + '\x04' + plural, count);</span> <span class="s2"> if (value.indexOf('\x04') != -1) {</span> <span class="s2"> value = django.ngettext(singular, plural, count);</span> <span class="s2"> }</span> <span class="s2"> return value;</span> <span class="s2"> };</span> <span class="s2"> {</span><span class="si">% e</span><span class="s2">lse %}</span> <span class="s2"> /* gettext identity library */</span> <span class="s2"> django.gettext = function (msgid) { return msgid; };</span> <span class="s2"> django.ngettext = function (singular, plural, count) { return (count == 1) ? singular : plural; };</span> <span class="s2"> django.gettext_noop = function (msgid) { return msgid; };</span> <span class="s2"> django.pgettext = function (context, msgid) { return msgid; };</span> <span class="s2"> django.npgettext = function (context, singular, plural, count) { return (count == 1) ? singular : plural; };</span> <span class="s2"> {</span><span class="si">% e</span><span class="s2">ndif %}</span> <span class="s2"> django.interpolate = function (fmt, obj, named) {</span> <span class="s2"> if (named) {</span> <span class="s2"> return fmt.replace(/%\(\w+\)s/g, function(match){return String(obj[match.slice(2,-2)])});</span> <span class="s2"> } else {</span> <span class="s2"> return fmt.replace(/</span><span class="si">%s</span><span class="s2">/g, function(match){return String(obj.shift())});</span> <span class="s2"> }</span> <span class="s2"> };</span> <span class="s2"> /* formatting library */</span> <span class="s2"> django.formats = {{ formats_str }};</span> <span class="s2"> django.get_format = function (format_type) {</span> <span class="s2"> var value = django.formats[format_type];</span> <span class="s2"> if (typeof(value) == 'undefined') {</span> <span class="s2"> return format_type;</span> <span class="s2"> } else {</span> <span class="s2"> return value;</span> <span class="s2"> }</span> <span class="s2"> };</span> <span class="s2"> /* add to global namespace */</span> <span class="s2"> globals.pluralidx = django.pluralidx;</span> <span class="s2"> globals.gettext = django.gettext;</span> <span class="s2"> globals.ngettext = django.ngettext;</span> <span class="s2"> globals.gettext_noop = django.gettext_noop;</span> <span class="s2"> globals.pgettext = django.pgettext;</span> <span class="s2"> globals.npgettext = django.npgettext;</span> <span class="s2"> globals.interpolate = django.interpolate;</span> <span class="s2"> globals.get_format = django.get_format;</span> <span class="s2">}(this));</span> <span class="s2">{</span><span class="si">% e</span><span class="s2">ndautoescape %}</span> <span class="s2">"""</span> <span class="k">def</span> <span class="nf">render_javascript_catalog</span><span class="p">(</span><span class="n">catalog</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">plural</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="n">template</span> <span class="o">=</span> <span class="n">Engine</span><span class="p">()</span><span class="o">.</span><span class="n">from_string</span><span class="p">(</span><span class="n">js_catalog_template</span><span class="p">)</span> <span class="n">indent</span> <span class="o">=</span> <span class="k">lambda</span> <span class="n">s</span><span class="p">:</span> <span class="n">s</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">'</span><span class="se">\n</span><span class="s1">'</span><span class="p">,</span> <span class="s1">'</span><span class="se">\n</span><span class="s1"> '</span><span class="p">)</span> <span class="n">context</span> <span class="o">=</span> <span class="n">Context</span><span class="p">({</span> <span class="s1">'catalog_str'</span><span class="p">:</span> <span class="n">indent</span><span class="p">(</span><span class="n">json</span><span class="o">.</span><span class="n">dumps</span><span class="p">(</span> <span class="n">catalog</span><span class="p">,</span> <span class="n">sort_keys</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">2</span><span class="p">))</span> <span class="k">if</span> <span class="n">catalog</span> <span class="k">else</span> <span class="kc">None</span><span class="p">,</span> <span class="s1">'formats_str'</span><span class="p">:</span> <span class="n">indent</span><span class="p">(</span><span class="n">json</span><span class="o">.</span><span class="n">dumps</span><span class="p">(</span> <span class="n">get_formats</span><span class="p">(),</span> <span class="n">sort_keys</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">indent</span><span class="o">=</span><span class="mi">2</span><span class="p">)),</span> <span class="s1">'plural'</span><span class="p">:</span> <span class="n">plural</span><span class="p">,</span> <span class="p">})</span> <span class="k">return</span> <span class="n">http</span><span class="o">.</span><span class="n">HttpResponse</span><span class="p">(</span><span class="n">template</span><span class="o">.</span><span class="n">render</span><span class="p">(</span><span class="n">context</span><span class="p">),</span> <span class="s1">'text/javascript'</span><span class="p">)</span> <span class="k">def</span> <span class="nf">get_javascript_catalog</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">domain</span><span class="p">,</span> <span class="n">packages</span><span class="p">):</span> <span class="n">default_locale</span> <span class="o">=</span> <span class="n">to_locale</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LANGUAGE_CODE</span><span class="p">)</span> <span class="n">app_configs</span> <span class="o">=</span> <span class="n">apps</span><span class="o">.</span><span class="n">get_app_configs</span><span class="p">()</span> <span class="n">allowable_packages</span> <span class="o">=</span> <span class="nb">set</span><span class="p">(</span><span class="n">app_config</span><span class="o">.</span><span class="n">name</span> <span class="k">for</span> <span class="n">app_config</span> <span class="ow">in</span> <span class="n">app_configs</span><span class="p">)</span> <span class="n">allowable_packages</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="s1">'django.conf'</span><span class="p">)</span> <span class="n">packages</span> <span class="o">=</span> <span class="p">[</span><span class="n">p</span> <span class="k">for</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">packages</span> <span class="k">if</span> <span class="n">p</span> <span class="ow">in</span> <span class="n">allowable_packages</span><span class="p">]</span> <span class="n">t</span> <span class="o">=</span> <span class="p">{}</span> <span class="n">paths</span> <span class="o">=</span> <span class="p">[]</span> <span class="n">en_selected</span> <span class="o">=</span> <span class="n">locale</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'en'</span><span class="p">)</span> <span class="n">en_catalog_missing</span> <span class="o">=</span> <span class="kc">True</span> <span class="c1"># paths of requested packages</span> <span class="k">for</span> <span class="n">package</span> <span class="ow">in</span> <span class="n">packages</span><span class="p">:</span> <span class="n">p</span> <span class="o">=</span> <span class="n">importlib</span><span class="o">.</span><span class="n">import_module</span><span class="p">(</span><span class="n">package</span><span class="p">)</span> <span class="n">path</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">upath</span><span class="p">(</span><span class="n">p</span><span class="o">.</span><span class="n">__file__</span><span class="p">)),</span> <span class="s1">'locale'</span><span class="p">)</span> <span class="n">paths</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">path</span><span class="p">)</span> <span class="c1"># add the filesystem paths listed in the LOCALE_PATHS setting</span> <span class="n">paths</span><span class="o">.</span><span class="n">extend</span><span class="p">(</span><span class="nb">list</span><span class="p">(</span><span class="nb">reversed</span><span class="p">(</span><span class="n">settings</span><span class="o">.</span><span class="n">LOCALE_PATHS</span><span class="p">)))</span> <span class="c1"># first load all english languages files for defaults</span> <span class="k">for</span> <span class="n">path</span> <span class="ow">in</span> <span class="n">paths</span><span class="p">:</span> <span class="k">try</span><span class="p">:</span> <span class="n">catalog</span> <span class="o">=</span> <span class="n">gettext_module</span><span class="o">.</span><span class="n">translation</span><span class="p">(</span><span class="n">domain</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="p">[</span><span class="s1">'en'</span><span class="p">])</span> <span class="n">t</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">catalog</span><span class="o">.</span><span class="n">_catalog</span><span class="p">)</span> <span class="k">except</span> <span class="ne">IOError</span><span class="p">:</span> <span class="k">pass</span> <span class="k">else</span><span class="p">:</span> <span class="c1"># 'en' is the selected language and at least one of the packages</span> <span class="c1"># listed in `packages` has an 'en' catalog</span> <span class="k">if</span> <span class="n">en_selected</span><span class="p">:</span> <span class="n">en_catalog_missing</span> <span class="o">=</span> <span class="kc">False</span> <span class="c1"># next load the settings.LANGUAGE_CODE translations if it isn't english</span> <span class="k">if</span> <span class="n">default_locale</span> <span class="o">!=</span> <span class="s1">'en'</span><span class="p">:</span> <span class="k">for</span> <span class="n">path</span> <span class="ow">in</span> <span class="n">paths</span><span class="p">:</span> <span class="k">try</span><span class="p">:</span> <span class="n">catalog</span> <span class="o">=</span> <span class="n">gettext_module</span><span class="o">.</span><span class="n">translation</span><span class="p">(</span><span class="n">domain</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="p">[</span><span class="n">default_locale</span><span class="p">])</span> <span class="k">except</span> <span class="ne">IOError</span><span class="p">:</span> <span class="n">catalog</span> <span class="o">=</span> <span class="kc">None</span> <span class="k">if</span> <span class="n">catalog</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="n">t</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">catalog</span><span class="o">.</span><span class="n">_catalog</span><span class="p">)</span> <span class="c1"># last load the currently selected language, if it isn't identical to the default.</span> <span class="k">if</span> <span class="n">locale</span> <span class="o">!=</span> <span class="n">default_locale</span><span class="p">:</span> <span class="c1"># If the currently selected language is English but it doesn't have a</span> <span class="c1"># translation catalog (presumably due to being the language translated</span> <span class="c1"># from) then a wrong language catalog might have been loaded in the</span> <span class="c1"># previous step. It needs to be discarded.</span> <span class="k">if</span> <span class="n">en_selected</span> <span class="ow">and</span> <span class="n">en_catalog_missing</span><span class="p">:</span> <span class="n">t</span> <span class="o">=</span> <span class="p">{}</span> <span class="k">else</span><span class="p">:</span> <span class="n">locale_t</span> <span class="o">=</span> <span class="p">{}</span> <span class="k">for</span> <span class="n">path</span> <span class="ow">in</span> <span class="n">paths</span><span class="p">:</span> <span class="k">try</span><span class="p">:</span> <span class="n">catalog</span> <span class="o">=</span> <span class="n">gettext_module</span><span class="o">.</span><span class="n">translation</span><span class="p">(</span><span class="n">domain</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="p">[</span><span class="n">locale</span><span class="p">])</span> <span class="k">except</span> <span class="ne">IOError</span><span class="p">:</span> <span class="n">catalog</span> <span class="o">=</span> <span class="kc">None</span> <span class="k">if</span> <span class="n">catalog</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="n">locale_t</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">catalog</span><span class="o">.</span><span class="n">_catalog</span><span class="p">)</span> <span class="k">if</span> <span class="n">locale_t</span><span class="p">:</span> <span class="n">t</span> <span class="o">=</span> <span class="n">locale_t</span> <span class="n">plural</span> <span class="o">=</span> <span class="kc">None</span> <span class="k">if</span> <span class="s1">''</span> <span class="ow">in</span> <span class="n">t</span><span class="p">:</span> <span class="k">for</span> <span class="n">l</span> <span class="ow">in</span> <span class="n">t</span><span class="p">[</span><span class="s1">''</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'</span><span class="se">\n</span><span class="s1">'</span><span class="p">):</span> <span class="k">if</span> <span class="n">l</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'Plural-Forms:'</span><span class="p">):</span> <span class="n">plural</span> <span class="o">=</span> <span class="n">l</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">':'</span><span class="p">,</span> <span class="mi">1</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> <span class="k">if</span> <span class="n">plural</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span> <span class="c1"># this should actually be a compiled function of a typical plural-form:</span> <span class="c1"># Plural-Forms: nplurals=3; plural=n%10==1 && n%100!=11 ? 0 :</span> <span class="c1"># n%10>=2 && n%10<=4 && (n%100<10 || n%100>=20) ? 1 : 2;</span> <span class="n">plural</span> <span class="o">=</span> <span class="p">[</span><span class="n">el</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span> <span class="k">for</span> <span class="n">el</span> <span class="ow">in</span> <span class="n">plural</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">';'</span><span class="p">)</span> <span class="k">if</span> <span class="n">el</span><span class="o">.</span><span class="n">strip</span><span class="p">()</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="s1">'plural='</span><span class="p">)][</span><span class="mi">0</span><span class="p">]</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'='</span><span class="p">,</span> <span class="mi">1</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span> <span class="n">pdict</span> <span class="o">=</span> <span class="p">{}</span> <span class="n">maxcnts</span> <span class="o">=</span> <span class="p">{}</span> <span class="n">catalog</span> <span class="o">=</span> <span class="p">{}</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">t</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="k">if</span> <span class="n">k</span> <span class="o">==</span> <span class="s1">''</span><span class="p">:</span> <span class="k">continue</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> <span class="n">catalog</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="n">v</span> <span class="k">elif</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">k</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">):</span> <span class="n">msgid</span> <span class="o">=</span> <span class="n">k</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="n">cnt</span> <span class="o">=</span> <span class="n">k</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="n">maxcnts</span><span class="p">[</span><span class="n">msgid</span><span class="p">]</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">cnt</span><span class="p">,</span> <span class="n">maxcnts</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">msgid</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span> <span class="n">pdict</span><span class="o">.</span><span class="n">setdefault</span><span class="p">(</span><span class="n">msgid</span><span class="p">,</span> <span class="p">{})[</span><span class="n">cnt</span><span class="p">]</span> <span class="o">=</span> <span class="n">v</span> <span class="k">else</span><span class="p">:</span> <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="n">k</span><span class="p">)</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="n">pdict</span><span class="o">.</span><span class="n">items</span><span class="p">():</span> <span class="n">catalog</span><span class="p">[</span><span class="n">k</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">v</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">,</span> <span class="s1">''</span><span class="p">)</span> <span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">maxcnts</span><span class="p">[</span><span class="n">msgid</span><span class="p">]</span> <span class="o">+</span> <span class="mi">1</span><span class="p">)]</span> <span class="k">return</span> <span class="n">catalog</span><span class="p">,</span> <span class="n">plural</span> <span class="k">def</span> <span class="nf">null_javascript_catalog</span><span class="p">(</span><span class="n">request</span><span class="p">,</span> <span class="n">domain</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">packages</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns "identity" versions of the JavaScript i18n functions -- i.e.,</span> <span class="sd"> versions that don't actually do anything.</span> <span class="sd"> """</span> <span class="k">return</span> <span class="n">render_javascript_catalog</span><span class="p">()</span> <div class="viewcode-block" id="javascript_catalog"><a class="viewcode-back" href="../../../topics/i18n/translation.html#django.views.i18n.javascript_catalog">[docs]</a><span class="k">def</span> <span class="nf">javascript_catalog</span><span class="p">(</span><span class="n">request</span><span class="p">,</span> <span class="n">domain</span><span class="o">=</span><span class="s1">'djangojs'</span><span class="p">,</span> <span class="n">packages</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span> <span class="sd">"""</span> <span class="sd"> Returns the selected language catalog as a javascript library.</span> <span class="sd"> Receives the list of packages to check for translations in the</span> <span class="sd"> packages parameter either from an infodict or as a +-delimited</span> <span class="sd"> string from the request. Default is 'django.conf'.</span> <span class="sd"> Additionally you can override the gettext domain for this view,</span> <span class="sd"> but usually you don't want to do that, as JavaScript messages</span> <span class="sd"> go to the djangojs domain. But this might be needed if you</span> <span class="sd"> deliver your JavaScript source from Django templates.</span> <span class="sd"> """</span> <span class="n">locale</span> <span class="o">=</span> <span class="n">to_locale</span><span class="p">(</span><span class="n">get_language</span><span class="p">())</span> <span class="k">if</span> <span class="n">request</span><span class="o">.</span><span class="n">GET</span> <span class="ow">and</span> <span class="s1">'language'</span> <span class="ow">in</span> <span class="n">request</span><span class="o">.</span><span class="n">GET</span><span class="p">:</span> <span class="k">if</span> <span class="n">check_for_language</span><span class="p">(</span><span class="n">request</span><span class="o">.</span><span class="n">GET</span><span class="p">[</span><span class="s1">'language'</span><span class="p">]):</span> <span class="n">locale</span> <span class="o">=</span> <span class="n">to_locale</span><span class="p">(</span><span class="n">request</span><span class="o">.</span><span class="n">GET</span><span class="p">[</span><span class="s1">'language'</span><span class="p">])</span> <span class="k">if</span> <span class="n">packages</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span> <span class="n">packages</span> <span class="o">=</span> <span class="p">[</span><span class="s1">'django.conf'</span><span class="p">]</span> <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">packages</span><span class="p">,</span> <span class="n">six</span><span class="o">.</span><span class="n">string_types</span><span class="p">):</span> <span class="n">packages</span> <span class="o">=</span> <span class="n">packages</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">'+'</span><span class="p">)</span> <span class="n">catalog</span><span class="p">,</span> <span class="n">plural</span> <span class="o">=</span> <span class="n">get_javascript_catalog</span><span class="p">(</span><span class="n">locale</span><span class="p">,</span> <span class="n">domain</span><span class="p">,</span> <span class="n">packages</span><span class="p">)</span> <span class="k">return</span> <span class="n">render_javascript_catalog</span><span class="p">(</span><span class="n">catalog</span><span class="p">,</span> <span class="n">plural</span><span class="p">)</span></div> </pre></div> </div> </div> </div> <div class="yui-b" id="sidebar"> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h3>Browse</h3> <ul> </ul> <h3>You are here:</h3> <ul> <li> <a href="../../../index.html">Django 1.8.19 documentation</a> <ul><li><a href="../../index.html">Module code</a> <ul><li><a href="../../django.html">django</a> <ul><li>django.views.i18n</li></ul> </li></ul></li></ul> </li> </ul> <div id="searchbox" style="display: none" role="search"> <h3>Quick search</h3> <form class="search" action="../../../search.html" method="get"> <div><input type="text" name="q" /></div> <div><input type="submit" value="Go" /></div> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <h3>Last update:</h3> <p class="topless">Mar 10, 2018</p> </div> </div> <div id="ft"> <div class="nav"> <a href="../../index.html" title="Module code" accesskey="U">up</a></div> </div> </div> <div class="clearer"></div> </div> </body> </html>