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155 lines
6.4 KiB
HTML
155 lines
6.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Add various search limits</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.udm-add-search-limit" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">udm_add_search_limit</h1>
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<p class="verinfo">(PHP 4 >= 4.0.5, PHP 5 < 5.1.0, PECL mnogosearch >= 1.0.0)</p><p class="refpurpose"><span class="refname">udm_add_search_limit</span> — <span class="dc-title">Add various search limits</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.udm-add-search-limit-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>udm_add_search_limit</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$agent</code></span>
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, <span class="methodparam"><span class="type">int</span> <code class="parameter">$var</code></span>
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, <span class="methodparam"><span class="type">string</span> <code class="parameter">$val</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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<span class="function"><strong>udm_add_search_limit()</strong></span> adds search restrictions.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.udm-add-search-limit-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">agent</code></dt>
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<dd>
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<p class="para">
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A link to Agent, received after call to
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<span class="function"><a href="udm_alloc_agent.html" class="function">udm_alloc_agent()</a></span>.
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</p>
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</dd>
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<dt>
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<code class="parameter">var</code></dt>
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<dd>
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<p class="para">
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Defines the parameter, indicating limits.
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Possible <code class="parameter">var</code> values:
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<ul class="itemizedlist">
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<li class="listitem">
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<span class="simpara">
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<strong><code>UDM_LIMIT_URL</code></strong> - defines document URL limitations to limit the search
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through subsection of the database. It supports SQL % and _ LIKE wildcards,
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where % matches any number of characters, even zero characters,
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and _ matches exactly one character. E.g. http://www.example.___/catalog
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may stand for http://www.example.com/catalog and http://www.example.net/catalog.
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<strong><code>UDM_LIMIT_TAG</code></strong> - defines site TAG limitations. In indexer-conf you can
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assign specific TAGs to various sites and parts of a site. Tags in
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mnoGoSearch 3.1.x are lines, that may contain metasymbols % and _.
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Metasymbols allow searching among groups of tags.
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E.g. there are links with tags ABCD and ABCE, and search restriction
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is by ABC_ - the search will be made among both of the tags.
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<strong><code>UDM_LIMIT_LANG</code></strong> - defines document language limitations.
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<strong><code>UDM_LIMIT_CAT</code></strong> - defines document category limitations. Categories are
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similar to tag feature, but nested. So you can have one category inside
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another and so on. You have to use two characters for each level. Use a
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hex number going from 0-F or a 36 base number going from 0-Z.
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Therefore a top-level category like 'Auto' would be 01. If it has a
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subcategory like 'Ford', then it would be 01 (the parent category) and then
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'Ford' which we will give 01. Put those together and you get 0101. If 'Auto'
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had another subcategory named 'VW', then it's id would be 01 because it
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belongs to the 'Ford' category and then 02 because it's the next category.
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So it's id would be 0102. If VW had a sub category called 'Engine' then it's
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id would start at 01 again and it would get the 'VW' id 02 and 'Auto' id of
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01, making it 010201. If you want to search for sites under that category
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then you pass it cat=010201 in the URL.
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</span>
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</li>
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<li class="listitem">
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<p class="para">
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<strong><code>UDM_LIMIT_DATE</code></strong> - defines limitation by date the document was modified.
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</p>
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<p class="para">
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Format of parameter value: a string with first character < or >,
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then with no space - date in unixtime format, for example:
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</p>
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<p class="para">
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<div class="example" id="zookeeper.create.example.basic">
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />udm_add_search_limit</span><span style="color: #007700">(</span><span style="color: #0000BB">$udm</span><span style="color: #007700">, </span><span style="color: #0000BB">UDM_LIMIT_DATE</span><span style="color: #007700">, </span><span style="color: #DD0000">"&lt;908012006"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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<p class="para">
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If > character is used, then the search will be restricted to those
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documents having a modification date greater than entered, if <, then smaller.
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</p>
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</li>
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</ul>
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</p>
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</dd>
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<dt>
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<code class="parameter">val</code></dt>
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<dd>
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<p class="para">
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Defines the value of the current parameter.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.udm-add-search-limit-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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</div></div></div></body></html> |