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| -rw-r--r-- | user_guide/libraries/database/examples.html | 183 |
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diff --git a/user_guide/libraries/database/examples.html b/user_guide/libraries/database/examples.html new file mode 100644 index 000000000..e738ba825 --- /dev/null +++ b/user_guide/libraries/database/examples.html @@ -0,0 +1,183 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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+<title>Code Igniter User Guide</title>
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+<div id="masthead">
+<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
+<tr>
+<td><h1>Code Igniter User Guide Version 1.4.0</h1></td>
+<td id="breadcrumb_right"><a href="../../toc.html">Full Table of Contents</a></td>
+</tr>
+</table>
+</div>
+<!-- END NAVIGATION -->
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+<td id="breadcrumb">
+<a href="http://www.codeigniter.com/">Code Igniter Home</a> ›
+<a href="../../index.html">User Guide Home</a> ›
+<a href="index.html">Database Library</a> ›
+Database Example Code
+</td>
+<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="www.codeigniter.com/user_guide/" />Search User Guide <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" /> <input type="submit" class="submit" name="sa" value="Go" /></form></td>
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+<!-- START CONTENT -->
+<div id="content">
+
+
+<h1>Database Quick Start: Example Code</h1>
+
+<p>The following page contains example code showing how the database class is used. For complete details please
+read the individual pages describing each function.</p>
+
+
+<h2>Initializing the Database Class</h2>
+
+<p>The following code loads and initializes the database class based on your <a href="configuration.html">configuration</a> settings:</p>
+
+<code>$this->load->database();</code>
+
+<p>Once loaded the class is ready to be used as described below.</p>
+
+<p>Note: If all your pages require database access you can connect automatically. See the <a href="connecting.html">connecting</a> page for details.</p>
+
+
+<h2>Standard Query With Multiple Results (Object Version)</h2>
+
+<code>$query = $this->db->query('SELECT name, title, email FROM my_table');<br />
+<br />
+foreach ($query->result() as $row)<br />
+{<br />
+ echo $row->title;<br />
+ echo $row->name;<br />
+ echo $row->email;<br />
+}<br />
+<br />
+echo 'Total Results: ' . $query->num_rows();
+</code>
+
+<p>The above <dfn>result()</dfn> function returns an array of <strong>objects</strong>. Example: $row->title</p>
+
+
+<h2>Standard Query With Multiple Results (Array Version)</h2>
+
+<code>$query = $this->db->query('SELECT name, title, email FROM my_table');<br />
+<br />
+foreach ($query->result_array() as $row)<br />
+{<br />
+ echo $row['title'];<br />
+ echo $row['name'];<br />
+ echo $row['email'];<br />
+}</code>
+
+<p>The above <dfn>result_array()</dfn> function returns an array of standard array indexes. Example: $row['title']</p>
+
+
+<h2>Standard Query With Single Result</h2>
+
+<code>$query = $this->db->query('SELECT name FROM my_table LIMIT 1');<br />
+<br />
+$row = $query->row();<br />
+echo $row->name;<br />
+</code>
+
+
+<h2>Standard Insert</h2>
+
+<code>
+$sql = "INSERT INTO mytable (title, name) <br />
+ VALUES (".$this->db->escape($title).", ".$this->db->escape($name).")";<br />
+<br />
+$this->db->query($sql);<br />
+<br />
+echo $this->db->affected_rows();
+</code>
+
+
+
+
+<h2>Active Record Query</h2>
+
+<p>The <a href="active_record.html">Active Record Pattern</a> gives you a simplified means of retrieving data:</p>
+
+<code>
+$query = $this->db->get('table_name');<br />
+<br />
+foreach ($query->result() as $row)<br />
+{<br />
+ echo $row->title;<br />
+}</code>
+
+
+<h2>Active Record Insert</h2>
+
+<code>
+$data = array(<br />
+ 'title' => $title,<br />
+ 'name' => $name,<br />
+ 'date' => $date<br />
+ );<br />
+<br />
+$this->db->insert('mytable', $data);
+<br /><br />
+// Produces: INSERT INTO mytable (title, name, date) VALUES ('{$title}', '{$name}', '{$date}')</code>
+
+
+
+
+</div>
+<!-- END CONTENT -->
+
+
+<div id="footer">
+<p>
+Previous Topic: <a href="index.html">Database Class</a>
+ ·
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+<a href="../../index.html">User Guide Home</a> ·
+Next Topic: <a href="configuration.html">Database Configuration</a>
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