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diff --git a/user_guide/database/utilities.html b/user_guide/database/utilities.html deleted file mode 100644 index 44b5590a5..000000000 --- a/user_guide/database/utilities.html +++ /dev/null @@ -1,993 +0,0 @@ - - -<!DOCTYPE html> -<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]--> -<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]--> -<head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1.0"> - - <title>Database Utility Class — CodeIgniter 3.1.8 documentation</title> - - - - - <link rel="shortcut icon" href="../_static/ci-icon.ico"/> - - - - <link href='https://fonts.googleapis.com/css?family=Lato:400,700,400italic,700italic|Roboto+Slab:400,700|Inconsolata:400,700&subset=latin,cyrillic' rel='stylesheet' type='text/css'> - - - - - - - - - - <link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" /> - - - - <link rel="index" title="Index" - href="../genindex.html"/> - <link rel="search" 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class="wy-breadcrumbs-aside"> - - </li> - <div style="float:right;margin-left:5px;" id="closeMe"> - <img title="Classic Layout" alt="classic layout" src="data:image/gif;base64,R0lGODlhFAAUAJEAAAAAADMzM////wAAACH5BAUUAAIALAAAAAAUABQAAAImlI+py+0PU5gRBRDM3DxbWoXis42X13USOLauUIqnlsaH/eY6UwAAOw==" /> - </div> - </ul> - <hr/> -</div> - <div role="main" class="document"> - - <div class="section" id="database-utility-class"> -<h1>Database Utility Class<a class="headerlink" href="#database-utility-class" title="Permalink to this headline">¶</a></h1> -<p>The Database Utility Class contains methods that help you manage your -database.</p> -<div class="contents local topic" id="contents"> -<ul class="simple"> -<li><a class="reference internal" href="#initializing-the-utility-class" id="id1">Initializing the Utility Class</a></li> -<li><a class="reference internal" href="#using-the-database-utilities" id="id2">Using the Database Utilities</a><ul> -<li><a class="reference internal" href="#retrieve-list-of-database-names" id="id3">Retrieve list of database names</a></li> -<li><a class="reference internal" href="#determine-if-a-database-exists" id="id4">Determine If a Database Exists</a></li> -<li><a class="reference internal" href="#optimize-a-table" id="id5">Optimize a Table</a></li> -<li><a class="reference internal" href="#repair-a-table" id="id6">Repair a Table</a></li> -<li><a class="reference internal" href="#optimize-a-database" id="id7">Optimize a Database</a></li> -<li><a class="reference internal" href="#export-a-query-result-as-a-csv-file" id="id8">Export a Query Result as a CSV File</a></li> -<li><a class="reference internal" href="#export-a-query-result-as-an-xml-document" id="id9">Export a Query Result as an XML Document</a></li> -</ul> -</li> -<li><a class="reference internal" href="#backup-your-database" id="id10">Backup Your Database</a><ul> -<li><a class="reference internal" href="#database-backup-notes" id="id11">Database Backup Notes</a></li> -<li><a class="reference internal" href="#usage-example" id="id12">Usage Example</a></li> -<li><a class="reference internal" href="#setting-backup-preferences" id="id13">Setting Backup Preferences</a></li> -<li><a class="reference internal" href="#description-of-backup-preferences" id="id14">Description of Backup Preferences</a></li> -</ul> -</li> -<li><a class="reference internal" href="#class-reference" id="id15">Class Reference</a></li> -</ul> -</div> -<div class="section" id="initializing-the-utility-class"> -<h2><a class="toc-backref" href="#id1">Initializing the Utility Class</a><a class="headerlink" href="#initializing-the-utility-class" title="Permalink to this headline">¶</a></h2> -<div class="admonition important"> -<p class="first admonition-title">Important</p> -<p class="last">In order to initialize the Utility class, your database -driver must already be running, since the utilities class relies on it.</p> -</div> -<p>Load the Utility Class as follows:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">dbutil</span><span class="p">();</span> -</pre></div> -</div> -<p>You can also pass another database object to the DB Utility loader, in case -the database you want to manage isn’t the default one:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">myutil</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">dbutil</span><span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">other_db</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> -</pre></div> -</div> -<p>In the above example, we’re passing a custom database object as the first -parameter and then tell it to return the dbutil object, instead of -assigning it directly to <code class="docutils literal"><span class="pre">$this->dbutil</span></code>.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Both of the parameters can be used individually, just pass an empty -value as the first one if you wish to skip it.</p> -</div> -<p>Once initialized you will access the methods using the <code class="docutils literal"><span class="pre">$this->dbutil</span></code> -object:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">some_method</span><span class="p">();</span> -</pre></div> -</div> -</div> -<div class="section" id="using-the-database-utilities"> -<h2><a class="toc-backref" href="#id2">Using the Database Utilities</a><a class="headerlink" href="#using-the-database-utilities" title="Permalink to this headline">¶</a></h2> -<div class="section" id="retrieve-list-of-database-names"> -<h3><a class="toc-backref" href="#id3">Retrieve list of database names</a><a class="headerlink" href="#retrieve-list-of-database-names" title="Permalink to this headline">¶</a></h3> -<p>Returns an array of database names:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$dbs</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">list_databases</span><span class="p">();</span> - -<span class="k">foreach</span> <span class="p">(</span><span class="nv">$dbs</span> <span class="k">as</span> <span class="nv">$db</span><span class="p">)</span> -<span class="p">{</span> - <span class="k">echo</span> <span class="nv">$db</span><span class="p">;</span> -<span class="p">}</span> -</pre></div> -</div> -</div> -<div class="section" id="determine-if-a-database-exists"> -<h3><a class="toc-backref" href="#id4">Determine If a Database Exists</a><a class="headerlink" href="#determine-if-a-database-exists" title="Permalink to this headline">¶</a></h3> -<p>Sometimes it’s helpful to know whether a particular database exists. -Returns a boolean TRUE/FALSE. Usage example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">database_exists</span><span class="p">(</span><span class="s1">'database_name'</span><span class="p">))</span> -<span class="p">{</span> - <span class="c1">// some code...</span> -<span class="p">}</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Replace <em>database_name</em> with the name of the database you are -looking for. This method is case sensitive.</p> -</div> -</div> -<div class="section" id="optimize-a-table"> -<h3><a class="toc-backref" href="#id5">Optimize a Table</a><a class="headerlink" href="#optimize-a-table" title="Permalink to this headline">¶</a></h3> -<p>Permits you to optimize a table using the table name specified in the -first parameter. Returns TRUE/FALSE based on success or failure:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">optimize_table</span><span class="p">(</span><span class="s1">'table_name'</span><span class="p">))</span> -<span class="p">{</span> - <span class="k">echo</span> <span class="s1">'Success!'</span><span class="p">;</span> -<span class="p">}</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Not all database platforms support table optimization. It is -mostly for use with MySQL.</p> -</div> -</div> -<div class="section" id="repair-a-table"> -<h3><a class="toc-backref" href="#id6">Repair a Table</a><a class="headerlink" href="#repair-a-table" title="Permalink to this headline">¶</a></h3> -<p>Permits you to repair a table using the table name specified in the -first parameter. Returns TRUE/FALSE based on success or failure:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span><span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">repair_table</span><span class="p">(</span><span class="s1">'table_name'</span><span class="p">))</span> -<span class="p">{</span> - <span class="k">echo</span> <span class="s1">'Success!'</span><span class="p">;</span> -<span class="p">}</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Not all database platforms support table repairs.</p> -</div> -</div> -<div class="section" id="optimize-a-database"> -<h3><a class="toc-backref" href="#id7">Optimize a Database</a><a class="headerlink" href="#optimize-a-database" title="Permalink to this headline">¶</a></h3> -<p>Permits you to optimize the database your DB class is currently -connected to. Returns an array containing the DB status messages or -FALSE on failure.</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$result</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">optimize_database</span><span class="p">();</span> - -<span class="k">if</span> <span class="p">(</span><span class="nv">$result</span> <span class="o">!==</span> <span class="k">FALSE</span><span class="p">)</span> -<span class="p">{</span> - <span class="nb">print_r</span><span class="p">(</span><span class="nv">$result</span><span class="p">);</span> -<span class="p">}</span> -</pre></div> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Not all database platforms support database optimization. It -it is mostly for use with MySQL.</p> -</div> -</div> -<div class="section" id="export-a-query-result-as-a-csv-file"> -<h3><a class="toc-backref" href="#id8">Export a Query Result as a CSV File</a><a class="headerlink" href="#export-a-query-result-as-a-csv-file" title="Permalink to this headline">¶</a></h3> -<p>Permits you to generate a CSV file from a query result. The first -parameter of the method must contain the result object from your -query. Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">dbutil</span><span class="p">();</span> - -<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">query</span><span class="p">(</span><span class="s2">"SELECT * FROM mytable"</span><span class="p">);</span> - -<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">csv_from_result</span><span class="p">(</span><span class="nv">$query</span><span class="p">);</span> -</pre></div> -</div> -<p>The second, third, and fourth parameters allow you to set the delimiter -newline, and enclosure characters respectively. By default commas are -used as the delimiter, “n” is used as a new line, and a double-quote -is used as the enclosure. Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$delimiter</span> <span class="o">=</span> <span class="s2">","</span><span class="p">;</span> -<span class="nv">$newline</span> <span class="o">=</span> <span class="s2">"</span><span class="se">\r\n</span><span class="s2">"</span><span class="p">;</span> -<span class="nv">$enclosure</span> <span class="o">=</span> <span class="s1">'"'</span><span class="p">;</span> - -<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">csv_from_result</span><span class="p">(</span><span class="nv">$query</span><span class="p">,</span> <span class="nv">$delimiter</span><span class="p">,</span> <span class="nv">$newline</span><span class="p">,</span> <span class="nv">$enclosure</span><span class="p">);</span> -</pre></div> -</div> -<div class="admonition important"> -<p class="first admonition-title">Important</p> -<p class="last">This method will NOT write the CSV file for you. It -simply creates the CSV layout. If you need to write the file -use the <a class="reference internal" href="../helpers/file_helper.html"><span class="doc">File Helper</span></a>.</p> -</div> -</div> -<div class="section" id="export-a-query-result-as-an-xml-document"> -<h3><a class="toc-backref" href="#id9">Export a Query Result as an XML Document</a><a class="headerlink" href="#export-a-query-result-as-an-xml-document" title="Permalink to this headline">¶</a></h3> -<p>Permits you to generate an XML file from a query result. The first -parameter expects a query result object, the second may contain an -optional array of config parameters. Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">dbutil</span><span class="p">();</span> - -<span class="nv">$query</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">db</span><span class="o">-></span><span class="na">query</span><span class="p">(</span><span class="s2">"SELECT * FROM mytable"</span><span class="p">);</span> - -<span class="nv">$config</span> <span class="o">=</span> <span class="k">array</span> <span class="p">(</span> - <span class="s1">'root'</span> <span class="o">=></span> <span class="s1">'root'</span><span class="p">,</span> - <span class="s1">'element'</span> <span class="o">=></span> <span class="s1">'element'</span><span class="p">,</span> - <span class="s1">'newline'</span> <span class="o">=></span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span><span class="p">,</span> - <span class="s1">'tab'</span> <span class="o">=></span> <span class="s2">"</span><span class="se">\t</span><span class="s2">"</span> -<span class="p">);</span> - -<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">xml_from_result</span><span class="p">(</span><span class="nv">$query</span><span class="p">,</span> <span class="nv">$config</span><span class="p">);</span> -</pre></div> -</div> -<div class="admonition important"> -<p class="first admonition-title">Important</p> -<p class="last">This method will NOT write the XML file for you. It -simply creates the XML layout. If you need to write the file -use the <a class="reference internal" href="../helpers/file_helper.html"><span class="doc">File Helper</span></a>.</p> -</div> -</div> -</div> -<div class="section" id="backup-your-database"> -<h2><a class="toc-backref" href="#id10">Backup Your Database</a><a class="headerlink" href="#backup-your-database" title="Permalink to this headline">¶</a></h2> -<div class="section" id="database-backup-notes"> -<h3><a class="toc-backref" href="#id11">Database Backup Notes</a><a class="headerlink" href="#database-backup-notes" title="Permalink to this headline">¶</a></h3> -<p>Permits you to backup your full database or individual tables. The -backup data can be compressed in either Zip or Gzip format.</p> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">This feature is only available for MySQL and Interbase/Firebird databases.</p> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p>For Interbase/Firebird databases, the backup file name is the only parameter.</p> -<p class="last">$this->dbutil->backup(‘db_backup_filename’);</p> -</div> -<div class="admonition note"> -<p class="first admonition-title">Note</p> -<p class="last">Due to the limited execution time and memory available to PHP, -backing up very large databases may not be possible. If your database is -very large you might need to backup directly from your SQL server via -the command line, or have your server admin do it for you if you do not -have root privileges.</p> -</div> -</div> -<div class="section" id="usage-example"> -<h3><a class="toc-backref" href="#id12">Usage Example</a><a class="headerlink" href="#usage-example" title="Permalink to this headline">¶</a></h3> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="c1">// Load the DB utility class</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">dbutil</span><span class="p">();</span> - -<span class="c1">// Backup your entire database and assign it to a variable</span> -<span class="nv">$backup</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">backup</span><span class="p">();</span> - -<span class="c1">// Load the file helper and write the file to your server</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">helper</span><span class="p">(</span><span class="s1">'file'</span><span class="p">);</span> -<span class="nx">write_file</span><span class="p">(</span><span class="s1">'/path/to/mybackup.gz'</span><span class="p">,</span> <span class="nv">$backup</span><span class="p">);</span> - -<span class="c1">// Load the download helper and send the file to your desktop</span> -<span class="nv">$this</span><span class="o">-></span><span class="na">load</span><span class="o">-></span><span class="na">helper</span><span class="p">(</span><span class="s1">'download'</span><span class="p">);</span> -<span class="nx">force_download</span><span class="p">(</span><span class="s1">'mybackup.gz'</span><span class="p">,</span> <span class="nv">$backup</span><span class="p">);</span> -</pre></div> -</div> -</div> -<div class="section" id="setting-backup-preferences"> -<h3><a class="toc-backref" href="#id13">Setting Backup Preferences</a><a class="headerlink" href="#setting-backup-preferences" title="Permalink to this headline">¶</a></h3> -<p>Backup preferences are set by submitting an array of values to the first -parameter of the <code class="docutils literal"><span class="pre">backup()</span></code> method. Example:</p> -<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$prefs</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span> - <span class="s1">'tables'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(</span><span class="s1">'table1'</span><span class="p">,</span> <span class="s1">'table2'</span><span class="p">),</span> <span class="c1">// Array of tables to backup.</span> - <span class="s1">'ignore'</span> <span class="o">=></span> <span class="k">array</span><span class="p">(),</span> <span class="c1">// List of tables to omit from the backup</span> - <span class="s1">'format'</span> <span class="o">=></span> <span class="s1">'txt'</span><span class="p">,</span> <span class="c1">// gzip, zip, txt</span> - <span class="s1">'filename'</span> <span class="o">=></span> <span class="s1">'mybackup.sql'</span><span class="p">,</span> <span class="c1">// File name - NEEDED ONLY WITH ZIP FILES</span> - <span class="s1">'add_drop'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> <span class="c1">// Whether to add DROP TABLE statements to backup file</span> - <span class="s1">'add_insert'</span> <span class="o">=></span> <span class="k">TRUE</span><span class="p">,</span> <span class="c1">// Whether to add INSERT data to backup file</span> - <span class="s1">'newline'</span> <span class="o">=></span> <span class="s2">"</span><span class="se">\n</span><span class="s2">"</span> <span class="c1">// Newline character used in backup file</span> -<span class="p">);</span> - -<span class="nv">$this</span><span class="o">-></span><span class="na">dbutil</span><span class="o">-></span><span class="na">backup</span><span class="p">(</span><span class="nv">$prefs</span><span class="p">);</span> -</pre></div> -</div> -</div> -<div class="section" id="description-of-backup-preferences"> -<h3><a class="toc-backref" href="#id14">Description of Backup Preferences</a><a class="headerlink" href="#description-of-backup-preferences" title="Permalink to this headline">¶</a></h3> -<table border="1" class="docutils"> -<colgroup> -<col width="16%" /> -<col width="16%" /> -<col width="16%" /> -<col width="51%" /> -</colgroup> -<thead valign="bottom"> -<tr class="row-odd"><th class="head">Preference</th> -<th class="head">Default Value</th> -<th class="head">Options</th> -<th class="head">Description</th> -</tr> -</thead> -<tbody valign="top"> -<tr class="row-even"><td><strong>tables</strong></td> -<td>empty array</td> -<td>None</td> -<td>An array of tables you want backed up. If left blank all tables will be -exported.</td> -</tr> -<tr class="row-odd"><td><strong>ignore</strong></td> -<td>empty array</td> -<td>None</td> -<td>An array of tables you want the backup routine to ignore.</td> -</tr> -<tr class="row-even"><td><strong>format</strong></td> -<td>gzip</td> -<td>gzip, zip, txt</td> -<td>The file format of the export file.</td> -</tr> -<tr class="row-odd"><td><strong>filename</strong></td> -<td>the current date/time</td> -<td>None</td> -<td>The name of the backed-up file. The name is needed only if you are using -zip compression.</td> -</tr> -<tr class="row-even"><td><strong>add_drop</strong></td> -<td>TRUE</td> -<td>TRUE/FALSE</td> -<td>Whether to include DROP TABLE statements in your SQL export file.</td> -</tr> -<tr class="row-odd"><td><strong>add_insert</strong></td> -<td>TRUE</td> -<td>TRUE/FALSE</td> -<td>Whether to include INSERT statements in your SQL export file.</td> -</tr> -<tr class="row-even"><td><strong>newline</strong></td> -<td>“\n”</td> -<td>“\n”, “\r”, “\r\n”</td> -<td>Type of newline to use in your SQL export file.</td> -</tr> -<tr class="row-odd"><td><strong>foreign_key_checks</strong></td> -<td>TRUE</td> -<td>TRUE/FALSE</td> -<td>Whether output should keep foreign key checks enabled.</td> -</tr> -</tbody> -</table> -</div> -</div> -<div class="section" id="class-reference"> -<h2><a class="toc-backref" href="#id15">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2> -<dl class="class"> -<dt id="CI_DB_utility"> -<em class="property">class </em><code class="descname">CI_DB_utility</code><a class="headerlink" href="#CI_DB_utility" title="Permalink to this definition">¶</a></dt> -<dd><dl class="method"> -<dt id="CI_DB_utility::backup"> -<code class="descname">backup</code><span class="sig-paren">(</span><span class="optional">[</span><em>$params = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::backup" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$params</strong> (<em>array</em>) – An associative array of options</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">raw/(g)zipped SQL query string</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p> -</td> -</tr> -</tbody> -</table> -<p>Perform a database backup, per user preferences.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_DB_utility::database_exists"> -<code class="descname">database_exists</code><span class="sig-paren">(</span><em>$database_name</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::database_exists" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$database_name</strong> (<em>string</em>) – Database name</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE if the database exists, FALSE otherwise</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p> -</td> -</tr> -</tbody> -</table> -<p>Check for the existence of a database.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_DB_utility::list_databases"> -<code class="descname">list_databases</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::list_databases" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Array of database names found</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">array</td> -</tr> -</tbody> -</table> -<p>Retrieve a list of all the database names.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_DB_utility::optimize_database"> -<code class="descname">optimize_database</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::optimize_database" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Array of optimization messages or FALSE on failure</td> -</tr> -<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">array</td> -</tr> -</tbody> -</table> -<p>Optimizes the database.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_DB_utility::optimize_table"> -<code class="descname">optimize_table</code><span class="sig-paren">(</span><em>$table_name</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::optimize_table" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$table_name</strong> (<em>string</em>) – Name of the table to optimize</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of optimization messages or FALSE on failure</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> -</td> -</tr> -</tbody> -</table> -<p>Optimizes a database table.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_DB_utility::repair_table"> -<code class="descname">repair_table</code><span class="sig-paren">(</span><em>$table_name</em><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::repair_table" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$table_name</strong> (<em>string</em>) – Name of the table to repair</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Array of repair messages or FALSE on failure</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p> -</td> -</tr> -</tbody> -</table> -<p>Repairs a database table.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_DB_utility::csv_from_result"> -<code class="descname">csv_from_result</code><span class="sig-paren">(</span><em>$query</em><span class="optional">[</span>, <em>$delim = '</em>, <em>'</em><span class="optional">[</span>, <em>$newline = "n"</em><span class="optional">[</span>, <em>$enclosure = '"'</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::csv_from_result" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$query</strong> (<em>object</em>) – A database result object</li> -<li><strong>$delim</strong> (<em>string</em>) – The CSV field delimiter to use</li> -<li><strong>$newline</strong> (<em>string</em>) – The newline character to use</li> -<li><strong>$enclosure</strong> (<em>string</em>) – The enclosure delimiter to use</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The generated CSV file as a string</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p> -</td> -</tr> -</tbody> -</table> -<p>Translates a database result object into a CSV document.</p> -</dd></dl> - -<dl class="method"> -<dt id="CI_DB_utility::xml_from_result"> -<code class="descname">xml_from_result</code><span class="sig-paren">(</span><em>$query</em><span class="optional">[</span>, <em>$params = array()</em><span class="optional">]</span><span class="sig-paren">)</span><a class="headerlink" href="#CI_DB_utility::xml_from_result" title="Permalink to this definition">¶</a></dt> -<dd><table class="docutils field-list" frame="void" rules="none"> -<col class="field-name" /> -<col class="field-body" /> -<tbody valign="top"> -<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple"> -<li><strong>$query</strong> (<em>object</em>) – A database result object</li> -<li><strong>$params</strong> (<em>array</em>) – An associative array of preferences</li> -</ul> -</td> -</tr> -<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The generated XML document as a string</p> -</td> -</tr> -<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p> -</td> -</tr> -</tbody> -</table> -<p>Translates a database result object into an XML document.</p> -</dd></dl> - 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