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  <h1>Source code for searx.engines.demo_offline</h1><div class="highlight"><pre>
<span></span><span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="sd">&quot;&quot;&quot;Within this module we implement a *demo offline engine*.  Do not look to</span>
<span class="sd">close to the implementation, its just a simple example.  To get in use of this</span>
<span class="sd">*demo* engine add the following entry to your engines list in ``settings.yml``:</span>

<span class="sd">.. code:: yaml</span>

<span class="sd">  - name: my offline engine</span>
<span class="sd">    engine: demo_offline</span>
<span class="sd">    shortcut: demo</span>
<span class="sd">    disabled: false</span>

<span class="sd">&quot;&quot;&quot;</span>

<span class="kn">import</span><span class="w"> </span><span class="nn">json</span>

<span class="kn">from</span><span class="w"> </span><span class="nn">searx.result_types</span><span class="w"> </span><span class="kn">import</span> <span class="n">EngineResults</span>

<span class="n">engine_type</span> <span class="o">=</span> <span class="s1">&#39;offline&#39;</span>
<span class="n">categories</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;general&#39;</span><span class="p">]</span>
<span class="n">disabled</span> <span class="o">=</span> <span class="kc">True</span>
<span class="n">timeout</span> <span class="o">=</span> <span class="mf">2.0</span>

<span class="n">about</span> <span class="o">=</span> <span class="p">{</span>
    <span class="s2">&quot;wikidata_id&quot;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
    <span class="s2">&quot;official_api_documentation&quot;</span><span class="p">:</span> <span class="kc">None</span><span class="p">,</span>
    <span class="s2">&quot;use_official_api&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
    <span class="s2">&quot;require_api_key&quot;</span><span class="p">:</span> <span class="kc">False</span><span class="p">,</span>
    <span class="s2">&quot;results&quot;</span><span class="p">:</span> <span class="s1">&#39;JSON&#39;</span><span class="p">,</span>
<span class="p">}</span>

<span class="c1"># if there is a need for globals, use a leading underline</span>
<span class="n">_my_offline_engine</span><span class="p">:</span> <span class="nb">str</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span>


<div class="viewcode-block" id="init">
<a class="viewcode-back" href="../../../dev/engines/demo/demo_offline.html#searx.engines.demo_offline.init">[docs]</a>
<span class="k">def</span><span class="w"> </span><span class="nf">init</span><span class="p">(</span><span class="n">engine_settings</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
<span class="w">    </span><span class="sd">&quot;&quot;&quot;Initialization of the (offline) engine.  The origin of this demo engine is a</span>
<span class="sd">    simple json string which is loaded in this example while the engine is</span>
<span class="sd">    initialized.</span>

<span class="sd">    &quot;&quot;&quot;</span>
    <span class="k">global</span> <span class="n">_my_offline_engine</span>  <span class="c1"># pylint: disable=global-statement</span>

    <span class="n">_my_offline_engine</span> <span class="o">=</span> <span class="p">(</span>
        <span class="s1">&#39;[ {&quot;value&quot;: &quot;</span><span class="si">%s</span><span class="s1">&quot;}&#39;</span>
        <span class="s1">&#39;, {&quot;value&quot;:&quot;first item&quot;}&#39;</span>
        <span class="s1">&#39;, {&quot;value&quot;:&quot;second item&quot;}&#39;</span>
        <span class="s1">&#39;, {&quot;value&quot;:&quot;third item&quot;}&#39;</span>
        <span class="s1">&#39;]&#39;</span> <span class="o">%</span> <span class="n">engine_settings</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s1">&#39;name&#39;</span><span class="p">)</span>
    <span class="p">)</span></div>


<div class="viewcode-block" id="search">
<a class="viewcode-back" href="../../../dev/engines/demo/demo_offline.html#searx.engines.demo_offline.search">[docs]</a>
<span class="k">def</span><span class="w"> </span><span class="nf">search</span><span class="p">(</span><span class="n">query</span><span class="p">,</span> <span class="n">request_params</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="n">EngineResults</span><span class="p">:</span>
<span class="w">    </span><span class="sd">&quot;&quot;&quot;Query (offline) engine and return results.  Assemble the list of results</span>
<span class="sd">    from your local engine.  In this demo engine we ignore the &#39;query&#39; term,</span>
<span class="sd">    usual you would pass the &#39;query&#39; term to your local engine to filter out the</span>
<span class="sd">    results.</span>
<span class="sd">    &quot;&quot;&quot;</span>
    <span class="n">res</span> <span class="o">=</span> <span class="n">EngineResults</span><span class="p">()</span>

    <span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
    <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">json</span><span class="o">.</span><span class="n">loads</span><span class="p">(</span><span class="n">_my_offline_engine</span><span class="p">):</span>
        <span class="n">count</span> <span class="o">+=</span> <span class="mi">1</span>
        <span class="n">kvmap</span> <span class="o">=</span> <span class="p">{</span>
            <span class="s1">&#39;query&#39;</span><span class="p">:</span> <span class="n">query</span><span class="p">,</span>
            <span class="s1">&#39;language&#39;</span><span class="p">:</span> <span class="n">request_params</span><span class="p">[</span><span class="s1">&#39;searxng_locale&#39;</span><span class="p">],</span>
            <span class="s1">&#39;value&#39;</span><span class="p">:</span> <span class="n">row</span><span class="o">.</span><span class="n">get</span><span class="p">(</span><span class="s2">&quot;value&quot;</span><span class="p">),</span>
        <span class="p">}</span>
        <span class="n">res</span><span class="o">.</span><span class="n">add</span><span class="p">(</span>
            <span class="n">res</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">KeyValue</span><span class="p">(</span>
                <span class="n">caption</span><span class="o">=</span><span class="sa">f</span><span class="s2">&quot;Demo Offline Engine Result #</span><span class="si">{</span><span class="n">count</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">,</span>
                <span class="n">key_title</span><span class="o">=</span><span class="s2">&quot;Name&quot;</span><span class="p">,</span>
                <span class="n">value_title</span><span class="o">=</span><span class="s2">&quot;Value&quot;</span><span class="p">,</span>
                <span class="n">kvmap</span><span class="o">=</span><span class="n">kvmap</span><span class="p">,</span>
            <span class="p">)</span>
        <span class="p">)</span>
    <span class="n">res</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="n">res</span><span class="o">.</span><span class="n">types</span><span class="o">.</span><span class="n">LegacyResult</span><span class="p">(</span><span class="n">number_of_results</span><span class="o">=</span><span class="n">count</span><span class="p">))</span>
    <span class="k">return</span> <span class="n">res</span></div>

</pre></div>

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