Updated the settings model class.

This commit is contained in:
Alex Tselegidis 2021-10-27 10:04:48 +02:00
parent 175b6a9ffe
commit 65282bc5a2

View file

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