132 lines
4.6 KiB
Text
132 lines
4.6 KiB
Text
<?php
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class Settings_Model extends CI_Model {
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/**
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* Class Constructor
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*/
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function __construct() {
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parent::__construct();
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}
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/**
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* Get setting value from database.
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*
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* This method returns a system setting from the
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* database.
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*
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* @expectedException Exception
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*
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* @param string $name The database setting name.
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* @return string Returns the database value for
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* the selected setting.
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*/
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function get_setting($name) {
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if (!is_string($name)) { // Check argument type.
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throw new Exception('$name argument is not a string : ' . $name);
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}
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if ($this->db->get_where('ea_settings', array('name' => $name))->num_rows() == 0) { // Check if setting exists in db.
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throw new Exception('$name setting does not exist in database : ' . $name);
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}
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$query = $this->db->get_where('ea_settings', array('name' => $name));
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$setting = ($query->num_rows() > 0) ? $query->row() : '';
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return $setting->value;
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}
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/**
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* This method sets the value for a specific setting
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* on the database. If the setting doesn't exist, it
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* is going to be created, otherwise updated.
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*
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* @expectedException Exception
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*
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* @param string $name The setting name.
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* @param type $value The setting value.
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* @return int Returns the setting database id.
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*/
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function set_setting($name, $value) {
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if (!is_string($name)) {
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throw new Exception('$name argument is not a string : ' . $name);
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}
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$query = $this->db->get_where('ea_settings', array('name' => $name));
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if ($query->num_rows() > 0) {
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// Update setting
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if (!$this->db->update('ea_settings', array('value' => $value), array('name' => $name))) {
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throw new Exception('Could not update database setting.');
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}
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$setting_id = intval($this->db->get_where('ea_settings', array('name' => $name))->row()->id);
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} else {
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// Insert setting
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$insert_data = array(
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'name' => $name,
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'value' => $value
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);
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if (!$this->db->insert('ea_settings', $insert_data)) {
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throw new Exception('Could not insert database setting');
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}
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$setting_id = intval($this->db->insert_id());
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}
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return $setting_id;
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}
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/**
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* Remove a setting from the database.
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*
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* @expectedException Exception
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*
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* @param string $name The setting name to be removed.
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* @return bool Returns the delete operation result.
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*/
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function remove_setting($name) {
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if (!is_string($name)) {
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throw new Exception('$name is not a string : ' . $name);
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}
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if ($this->db->get_where('ea_settings', array('name' => $name))->num_rows() == 0) {
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return FALSE; // There is no such setting.
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}
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return $this->db->delete('ea_settings', array('name' => $name));
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}
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/**
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* Saves all the system settings into the database.
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*
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* This method is usefull when trying to save all the system settings at once instead of
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* saving them one by one.
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*
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* @param array $settings Contains all the system settings.
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* @return bool Returns the save operation result.
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*
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* @throws Exception When the update operation won't work for a specific setting.
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*/
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public function save_settings($settings) {
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if (!is_array($settings)) {
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throw new Exception('$settings argument is invalid: '. print_r($settings, TRUE));
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}
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foreach($settings as $setting) {
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$this->db->where('name', $setting['name']);
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if (!$this->db->update('ea_settings', array('value' => $setting['value']))) {
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throw new Exception('Could not save setting (' . $setting['name']
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. ' - ' . $setting['value'] . ')');
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}
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}
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return TRUE;
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}
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/**
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* Returns all the system settings at once.
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*
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* @return array Array of all the system settings stored in the 'ea_settings' table.
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*/
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public function get_settings() {
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return $this->db->get('ea_settings')->result_array();
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}
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}
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/* End of file settings_model.php */
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/* Location: ./application/models/settings_model.php */
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