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https://github.com/alextselegidis/easyappointments.git
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Updated the settings model class.
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Alex Tselegidis
parent
175b6a9ffe
commit
65282bc5a2
1 changed files with 209 additions and 116 deletions
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@ -12,155 +12,248 @@
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* ---------------------------------------------------------------------------- */
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/**
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* Settings Model
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* Settings model
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*
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* Handles all the database operations of the setting resource.
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*
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* @package Models
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*/
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class Settings_model extends EA_Model {
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/**
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* Get setting value from database.
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* Save (insert or update) a setting.
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*
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* This method returns a system setting from the database.
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* @param array $setting Associative array with the setting data.
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*
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* @param string $name The database setting name.
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* @return int Returns the setting ID.
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*
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* @return string Returns the database value for the selected setting.
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*
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* @throws Exception If the $name argument is invalid.
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* @throws Exception If the requested $name setting does not exist in the database.
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* @throws InvalidArgumentException
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*/
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public function get_setting($name)
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public function save(array $setting): int
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{
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if ( ! is_string($name))
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$this->validate($setting);
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if (empty($setting['id']))
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{
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// Check argument type.
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throw new Exception('$name argument is not a string: ' . $name);
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}
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if ($this->db->get_where('settings', ['name' => $name])->num_rows() == 0)
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{
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// Check if setting exists in db.
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throw new Exception('$name setting does not exist in database: ' . $name);
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}
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$query = $this->db->get_where('settings', ['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 on the database.
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*
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* If the setting doesn't exist, it is going to be created, otherwise updated.
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*
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* @param string $name The setting name.
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* @param string $value The setting value.
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*
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* @return int Returns the setting database id.
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*
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* @throws Exception If $name argument is invalid.
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* @throws Exception If the save operation fails.
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*/
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public function set_setting($name, $value)
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{
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if ( ! is_string($name))
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{
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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('settings', ['name' => $name]);
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if ($query->num_rows() > 0)
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{
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// Update setting
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if ( ! $this->db->update('settings', ['value' => $value], ['name' => $name]))
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{
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throw new Exception('Could not update database setting.');
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}
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$setting_id = (int)$this->db->get_where('settings', ['name' => $name])->row()->id;
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return $this->insert($setting);
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}
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else
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{
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// Insert setting
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$insert_data = [
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'name' => $name,
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'value' => $value
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];
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if ( ! $this->db->insert('settings', $insert_data))
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{
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throw new Exception('Could not insert database setting');
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}
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$setting_id = (int)$this->db->insert_id();
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return $this->update($setting);
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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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* Validate the setting data.
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*
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* @param string $name The setting name to be removed.
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* @param array $setting Associative array with the setting data.
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*
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* @return bool Returns the delete operation result.
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*
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* @throws Exception If the $name argument is invalid.
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* @throws InvalidArgumentException
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*/
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public function remove_setting($name)
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public function validate(array $setting): void
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{
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if ( ! is_string($name))
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// If a setting ID is provided then check whether the record really exists in the database.
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if ( ! empty($setting['id']))
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{
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throw new Exception('$name is not a string: ' . $name);
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}
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$count = $this->db->get_where('settings', ['id' => $setting['id']])->num_rows();
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if ($this->db->get_where('settings', ['name' => $name])->num_rows() == 0)
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{
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return FALSE; // There is no such setting.
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}
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return $this->db->delete('settings', ['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 useful 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 $settings Contains all the system settings.
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*
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* @return bool Returns the save operation result.
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*
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* @throws Exception When the update operation won't work for a specific setting.
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*/
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public function save_settings($settings)
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{
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if ( ! is_array($settings))
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{
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throw new Exception('$settings argument is invalid: ' . print_r($settings, TRUE));
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}
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foreach ($settings as $setting)
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{
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$this->db->where('name', $setting['name']);
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if ( ! $this->db->update('settings', ['value' => $setting['value']]))
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if ( ! $count)
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{
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throw new Exception('Could not save setting (' . $setting['name']
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. ' - ' . $setting['value'] . ')');
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throw new InvalidArgumentException('The provided setting ID does not exist in the database: ' . $setting['id']);
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}
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}
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return TRUE;
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// Make sure all required fields are provided.
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if (
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empty($setting['name'])
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)
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{
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throw new InvalidArgumentException('Not all required fields are provided: ' . print_r($setting, TRUE));
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}
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}
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/**
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* Returns all the system settings at once.
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* Insert a new setting into the database.
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*
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* @return array Array of all the system settings stored in the 'settings' table.
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* @param array $setting Associative array with the setting data.
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*
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* @return int Returns the setting ID.
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*
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* @throws RuntimeException
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*/
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public function get_settings()
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protected function insert(array $setting): int
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{
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return $this->db->get('settings')->result_array();
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if ( ! $this->db->insert('settings', $setting))
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{
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throw new RuntimeException('Could not insert setting.');
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}
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return $this->db->insert_id();
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}
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/**
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* Update an existing setting.
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*
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* @param array $setting Associative array with the setting data.
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*
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* @return int Returns the setting ID.
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*
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* @throws RuntimeException
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*/
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protected function update(array $setting): int
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{
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if ( ! $this->db->update('settings', $setting, ['id' => $setting['id']]))
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{
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throw new RuntimeException('Could not update setting.');
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}
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return $setting['id'];
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}
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/**
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* Remove an existing setting from the database.
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*
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* @param int $setting_id Setting ID.
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*
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* @throws RuntimeException
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*/
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public function delete(int $setting_id): void
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{
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if ( ! $this->db->delete('settings', ['id' => $setting_id]))
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{
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throw new RuntimeException('Could not delete setting.');
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}
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}
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/**
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* Get a specific setting from the database.
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*
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* @param int $setting_id The ID of the record to be returned.
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*
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* @return array Returns an array with the setting data.
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*
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* @throws InvalidArgumentException
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*/
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public function find(int $setting_id): array
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{
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if ( ! $this->db->get_where('settings', ['id' => $setting_id])->num_rows())
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{
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throw new InvalidArgumentException('The provided setting ID was not found in the database: ' . $setting_id);
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}
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return $this->db->get_where('settings', ['id' => $setting_id])->row_array();
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}
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/**
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* Get a specific field value from the database.
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*
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* @param int $setting_id Setting ID.
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* @param string $field Name of the value to be returned.
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*
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* @return string Returns the selected setting value from the database.
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*
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* @throws InvalidArgumentException
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*/
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public function value(int $setting_id, string $field): string
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{
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if (empty($field))
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{
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throw new InvalidArgumentException('The field argument is cannot be empty.');
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}
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if (empty($setting_id))
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{
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throw new InvalidArgumentException('The setting ID argument cannot be empty.');
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}
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// Check whether the setting exists.
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$query = $this->db->get_where('settings', ['id' => $setting_id]);
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if ( ! $query->num_rows())
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{
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throw new InvalidArgumentException('The provided setting ID was not found in the database: ' . $setting_id);
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}
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// Check if the required field is part of the setting data.
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$setting = $query->row_array();
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if ( ! array_key_exists($field, $setting))
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{
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throw new InvalidArgumentException('The requested field was not found in the setting data: ' . $field);
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}
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return $setting[$field];
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}
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/**
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* Get all settings that match the provided criteria.
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*
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* @param array|string $where Where conditions
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* @param int|null $limit Record limit.
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* @param int|null $offset Record offset.
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* @param string|null $order_by Order by.
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*
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* @return array Returns an array of settings.
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*/
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public function get($where = NULL, int $limit = NULL, int $offset = NULL, string $order_by = NULL): array
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{
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if ($where !== NULL)
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{
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$this->db->where($where);
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}
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if ($order_by !== NULL)
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{
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$this->db->order_by($order_by);
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}
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return $this->db->get('settings', $limit, $offset)->result_array();
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}
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/**
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* Get the query builder interface, configured for use with the settings table.
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*
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* @return CI_DB_query_builder
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*/
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public function query(): CI_DB_query_builder
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{
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return $this->db->from('settings');
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}
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/**
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* Search settings by the provided keyword.
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*
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* @param string $keyword Search keyword.
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* @param int|null $limit Record limit.
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* @param int|null $offset Record offset.
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* @param string|null $order_by Order by.
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*
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* @return array Returns an array of settings.
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*/
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public function search(string $keyword, int $limit = NULL, int $offset = NULL, string $order_by = NULL): array
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{
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return $this
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->db
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->select()
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->from('settings')
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->like('name', $keyword)
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->or_like('value', $keyword)
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->limit($limit)
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->offset($offset)
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->order_by($order_by)
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->get()
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->result_array();
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}
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/**
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* Attach related resources to a setting.
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*
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* @param array $setting Associative array with the setting data.
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* @param array $resources Resource names to be attached.
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*
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* @throws InvalidArgumentException
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*/
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public function attach(array &$setting, array $resources): void
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{
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// Users do not currently have any related resources.
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}
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}
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