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Created the users model class.

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Alex Tselegidis 2021-10-27 10:05:43 +02:00
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commit 97c7a2821d
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application/models/Users_model.php Normal file
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<?php defined('BASEPATH') or exit('No direct script access allowed');
/* ----------------------------------------------------------------------------
* Easy!Appointments - Open Source Web Scheduler
*
* @package EasyAppointments
* @author A.Tselegidis <alextselegidis@gmail.com>
* @copyright Copyright (c) 2013 - 2020, Alex Tselegidis
* @license http://opensource.org/licenses/GPL-3.0 - GPLv3
* @link http://easyappointments.org
* @since v1.0.0
* ---------------------------------------------------------------------------- */
/**
* Users model
*
* Handles all the database operations of the user resource.
*
* @package Models
*/
class Users_model extends EA_Model {
/**
* Save (insert or update) a user.
*
* @param array $user Associative array with the user data.
*
* @return int Returns the user ID.
*
* @throws InvalidArgumentException
*/
public function save(array $user): int
{
$this->validate($user);
if (empty($user['id']))
{
return $this->insert($user);
}
else
{
return $this->update($user);
}
}
/**
* Validate the user data.
*
* @param array $user Associative array with the user data.
*
* @throws InvalidArgumentException
*/
public function validate(array $user): void
{
// If a user ID is provided then check whether the record really exists in the database.
if ( ! empty($user['id']))
{
$count = $this->db->get_where('users', ['id' => $user['id']])->num_rows();
if ( ! $count)
{
throw new InvalidArgumentException('The provided user ID does not exist in the database: ' . $user['id']);
}
}
// Make sure all required fields are provided.
if (
empty($user['first_name'])
|| empty($user['last_name'])
|| empty($user['email'])
|| empty($user['phone_number'])
)
{
throw new InvalidArgumentException('Not all required fields are provided: ' . print_r($user, TRUE));
}
}
/**
* Insert a new user into the database.
*
* @param array $user Associative array with the user data.
*
* @return int Returns the user ID.
*
* @throws RuntimeException
*/
protected function insert(array $user): int
{
$settings = $user['settings'];
unset($user['settings']);
if ( ! $this->db->insert('users', $user))
{
throw new RuntimeException('Could not insert user.');
}
$user['id'] = $this->db->insert_id();
$settings['salt'] = generate_salt();
$settings['password'] = hash_password($settings['salt'], $settings['password']);
$this->save_settings($user['id'], $settings);
return $user['id'];
}
/**
* Update an existing user.
*
* @param array $user Associative array with the user data.
*
* @return int Returns the user ID.
*
* @throws RuntimeException
*/
protected function update(array $user): int
{
$settings = $user['settings'];
unset($user['settings']);
if (isset($settings['password']))
{
$existing_settings = $this->db->get_where('user_settings', ['id_users' => $user['id']])->row_array();
if (empty($existing_settings))
{
throw new RuntimeException('No settings record found for user with ID: ' . $user['id']);
}
$settings['password'] = hash_password($existing_settings['salt'], $settings['password']);
}
if ( ! $this->db->update('users', $user, ['id' => $user['id']]))
{
throw new RuntimeException('Could not update user.');
}
$this->save_settings($user['id'], $settings);
return $user['id'];
}
/**
* Remove an existing user from the database.
*
* @param int $user_id User ID.
*
* @throws RuntimeException
*/
public function delete(int $user_id): void
{
if ( ! $this->db->delete('users', ['id' => $user_id]))
{
throw new RuntimeException('Could not delete user.');
}
}
/**
* Get a specific user from the database.
*
* @param int $user_id The ID of the record to be returned.
*
* @return array Returns an array with the user data.
*
* @throws InvalidArgumentException
*/
public function find(int $user_id): array
{
if ( ! $this->db->get_where('users', ['id' => $user_id])->num_rows())
{
throw new InvalidArgumentException('The provided user ID was not found in the database: ' . $user_id);
}
$user = $this->db->get_where('users', ['id' => $user_id])->row_array();
$user['settings'] = $this->db->get_where('user_settings', ['id_users' => $user_id])->row_array();
unset($user['settings']['id_users']);
return $user;
}
/**
* Get a specific field value from the database.
*
* @param int $user_id User ID.
* @param string $field Name of the value to be returned.
*
* @return string Returns the selected user value from the database.
*
* @throws InvalidArgumentException
*/
public function value(int $user_id, string $field): string
{
if (empty($field))
{
throw new InvalidArgumentException('The field argument is cannot be empty.');
}
if (empty($user_id))
{
throw new InvalidArgumentException('The user ID argument cannot be empty.');
}
// Check whether the user exists.
$query = $this->db->get_where('users', ['id' => $user_id]);
if ( ! $query->num_rows())
{
throw new InvalidArgumentException('The provided user ID was not found in the database: ' . $user_id);
}
// Check if the required field is part of the user data.
$user = $query->row_array();
if ( ! array_key_exists($field, $user))
{
throw new InvalidArgumentException('The requested field was not found in the user data: ' . $field);
}
return $user[$field];
}
/**
* Get all users 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 $order_by Order by.
*
* @return array Returns an array of users.
*/
public function get($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);
}
$users = $this->db->get('users', $limit, $offset)->result_array();
foreach ($users as &$user)
{
$user['settings'] = $this->db->get_where('user_settings', ['id_users' => $user['id']])->row_array();
unset(
$user['settings']['id_users'],
$user['settings']['password'],
$user['settings']['salt']
);
}
return $users;
}
/**
* Save the user settings.
*
* @param int $user_id User ID.
* @param array $settings Associative array with the settings data.
*
* @throws InvalidArgumentException
*/
protected function save_settings(int $user_id, array $settings): void
{
if (empty($settings))
{
throw new InvalidArgumentException('The settings argument cannot be empty.');
}
// Make sure the settings record exists in the database.
$count = $this->db->get_where('user_settings', ['id_users' => $user_id])->num_rows();
if ( ! $count)
{
$this->db->insert('user_settings', ['id_users' => $user_id]);
}
foreach ($settings as $name => $value)
{
$this->set_setting($user_id, $name, $value);
}
}
/**
* Set the value of a user setting.
*
* @param int $user_id User ID.
* @param string $name Setting name.
* @param string $value Setting value.
*/
public function set_setting(int $user_id, string $name, string $value): void
{
if ( ! $this->db->update('user_settings', [$name => $value], ['id_users' => $user_id]))
{
throw new RuntimeException('Could not set the new user setting value: ' . $name);
}
}
/**
* Get the value of a user setting.
*
* @param int $user_id User ID.
* @param string $name Setting name.
*
* @return string Returns the value of the requested user setting.
*/
public function get_setting(int $user_id, string $name): string
{
$settings = $this->db->get_where('user_settings', ['id_users' => $user_id])->row_array();
if (empty($settings[$name]))
{
throw new RuntimeException('The requested setting value was not found: ' . $user_id);
}
return $settings[$name];
}
/**
* Get the query builder interface, configured for use with the users table.
*
* @return CI_DB_query_builder
*/
public function query(): CI_DB_query_builder
{
return $this->db->from('users');
}
/**
* Search users 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('users')
->like('first_name', $keyword)
->or_like('last_name', $keyword)
->or_like('email', $keyword)
->or_like('phone_number', $keyword)
->or_like('mobile_number', $keyword)
->or_like('address', $keyword)
->or_like('city', $keyword)
->or_like('state', $keyword)
->or_like('zip_code', $keyword)
->or_like('notes', $keyword)
->limit($limit)
->offset($offset)
->order_by($order_by)
->get()
->result_array();
}
/**
* Attach related resources to a user.
*
* @param array $user Associative array with the user data.
* @param array $resources Resource names to be attached.
*
* @throws InvalidArgumentException
*/
public function attach(array &$user, array $resources): void
{
// Users do not currently have any related resources.
}
}