diff options
Diffstat (limited to 'user_guide/database')
| -rw-r--r-- | user_guide/database/active_record.html | 50 | ||||
| -rw-r--r-- | user_guide/database/results.html | 4 | ||||
| -rw-r--r-- | user_guide/database/utilities.html | 7 |
3 files changed, 47 insertions, 14 deletions
diff --git a/user_guide/database/active_record.html b/user_guide/database/active_record.html index 92d9614d5..70aecbdb5 100644 --- a/user_guide/database/active_record.html +++ b/user_guide/database/active_record.html @@ -79,9 +79,6 @@ is generated by each database adapter. It also allows for safer queries, since <p>The following functions allow you to build SQL <strong>SELECT</strong> statements.</p> -<p><strong>Note: If you are using PHP 5 you can use method chaining for more compact syntax. This is described at the end of the page.</strong></p> - - <h2>$this->db->get();</h2> <p>Runs the selection query and returns the result. Can be used by itself to retrieve all records from a table:</p> @@ -532,8 +529,8 @@ $this->db->insert('mytable', $object); <p>Generates an insert string based on the data you supply, and runs the query. You can either pass an <strong>array</strong> or an <strong>object</strong> to the function. Here is an example using an array:</p> -<code> -$data = array(<br/> +<code> +$data = array(<br /> array(<br /> 'title' => 'My title' ,<br /> 'name' => 'My Name' ,<br /> @@ -543,10 +540,10 @@ $data = array(<br/> 'title' => 'Another title' ,<br /> 'name' => 'Another Name' ,<br /> 'date' => 'Another date'<br /> - )<br/> -);<br /> + )<br /> +);<br /> <br /> -$this->db->update_batch('mytable', $data); +$this->db->insert_batch('mytable', $data); <br /><br /> // Produces: INSERT INTO mytable (title, name, date) VALUES ('My title', 'My name', 'My date'), ('Another title', 'Another name', 'Another date')</code> @@ -669,6 +666,41 @@ You can optionally pass this information directly into the update function as a <p>You may also use the <dfn>$this->db->set()</dfn> function described above when performing updates.</p> +<h2>$this->db->update_batch();</h2> +<p>Generates an update string based on the data you supply, and runs the query. You can either pass an +<strong>array</strong> or an <strong>object</strong> to the function. Here is an example using an array:</p> + +<code> +$data = array(<br/> + array(<br /> + 'title' => 'My title' ,<br /> + 'name' => 'My Name 2' ,<br /> + 'date' => 'My date 2'<br /> + ),<br /> + array(<br /> + 'title' => 'Another title' ,<br /> + 'name' => 'Another Name 2' ,<br /> + 'date' => 'Another date 2'<br /> + )<br/> +);<br /> +<br /> +$this->db->update_batch('mytable', $data, 'title'); +<br /><br /> +// Produces: <br /> +// UPDATE `mytable` SET `name` = CASE<br /> +// WHEN `title` = 'My title' THEN 'My Name 2'<br /> +// WHEN `title` = 'Another title' THEN 'Another Name 2'<br /> +// ELSE `name` END,<br /> +// `date` = CASE <br /> +// WHEN `title` = 'My title' THEN 'My date 2'<br /> +// WHEN `title` = 'Another title' THEN 'Another date 2'<br /> +// ELSE `date` END<br /> +// WHERE `title` IN ('My title','Another title')</code> + +<p>The first parameter will contain the table name, the second is an associative array of values, the third parameter is the where key.</p> + +<p class="important"><strong>Note:</strong> All values are escaped automatically producing safer queries.</p> + <a name="delete"> </a> <h1>Deleting Data</h1> @@ -786,4 +818,4 @@ Next Topic: <a href="transactions.html">Transactions</a> </div> </body> -</html>
\ No newline at end of file +</html> diff --git a/user_guide/database/results.html b/user_guide/database/results.html index ec5f97762..a47e335cb 100644 --- a/user_guide/database/results.html +++ b/user_guide/database/results.html @@ -105,8 +105,8 @@ Query Results <br /> foreach ($query->result('User') as $user)<br /> {<br /> - echo $row->name; // call attributes<br /> - echo $row->reverse_name(); // or methods defined on the 'User' class<br /> + echo $user->name; // call attributes<br /> + echo $user->reverse_name(); // or methods defined on the 'User' class<br /> } </code> diff --git a/user_guide/database/utilities.html b/user_guide/database/utilities.html index 8231c7e78..c80e3d106 100644 --- a/user_guide/database/utilities.html +++ b/user_guide/database/utilities.html @@ -183,14 +183,15 @@ $query = $this->db->query("SELECT * FROM mytable");<br /> echo $this->dbutil->csv_from_result($query); </code> -<p>The second and third parameters allows you to -set the delimiter and newline character. By default tabs are used as the delimiter and "\n" is used as a new line. Example:</p> +<p>The second, third, and fourth parameters allow you to +set the delimiter, newline, and enclosure characters respectively. By default tabs are used as the delimiter, "\n" is used as a new line, and a double-quote is used as the enclosure. Example:</p> <code> $delimiter = ",";<br /> $newline = "\r\n";<br /> +$enclosure = '"';<br /> <br /> -echo $this->dbutil->csv_from_result($query, $delimiter, $newline); +echo $this->dbutil->csv_from_result($query, $delimiter, $newline, $enclosure); </code> <p><strong>Important:</strong> This function will NOT write the CSV file for you. It simply creates the CSV layout. |