easyappointments/src/application/models/appointments_model.php

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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
class Appointments_Model extends CI_Model {
/**
* Class Constructor
*/
public function __construct() {
parent::__construct();
}
/**
* Add an appointment record to the database.
*
* This method adds a new appointment to the database. If the
* appointment doesn't exists it is going to be inserted, otherwise
* the record is going to be updated.
*
* @param array $appointment_data Associative array with the appointmet's
* data. Each key has the same name with the database fields.
* @return int Returns the appointments id.
*/
public function add($appointment_data) {
try {
$appointment_id = $this->exists($appointment_data);
if (!$appointment_id) {
$appointment_id = $this->insert($appointment_data);
} else {
$appointment_data['id'] = $appointment_id;
$this->update($appointment_data);
}
return $appointment_id;
} catch (Exception $exc) {
echo $exc->getTraceAsString();
}
}
/**
* Check if a particular appointment record already exists.
*
* This method checks wether the given appointment already exists in
* the database. This method does not search with the id, but with a
* combination of the appointments field values.
*
* @param array $appointment_data Associative array with the appointment's
* data. Each key has the same name with the database fields.
* @return int|bool Returns the record id or FALSE if it doesn't exist.
*/
public function exists($appointment_data) {
$this->db->where(array(
'start_datetime' => $appointment_data['start_datetime'],
'end_datetime' => $appointment_data['end_datetime'],
'id_users_provider' => $appointment_data['id_users_provider'],
'id_users_customer' => $appointment_data['id_users_customer'],
'id_services' => $appointment_data['id_services']
));
$result = $this->db->get('ea_appointments');
return ($result->num_rows() > 0) ? $result->row()->id : FALSE;
}
/**
* Insert a new appointment record to the database.
*
* @param array $appointment_data Associative array with the appointment's
* data. Each key has the same name with the database fields.
* @return int Returns the id of the new record.
*/
private function insert($appointment_data) {
if (!$this->db->insert('ea_appointments', $appointment_data)) {
throw new Exception('Could not insert new appointment record.');
}
return $this->db->insert_id();
}
/**
* Update an existing appointment record in the database.
*
* The appointment data argument should already include the record
* id in order to process the update operation.
*
* @param array $appointment_data Associative array with the appointment's
* data. Each key has the same name with the database fields.
* @return @return int Returns the id of the updated record.
*/
private function update($appointment_data) {
$this->db->where('id', $appointment_data['id']);
if (!$this->db->update('ea_appointments', $appointment_data)) {
throw new Exception('Could not update appointment record.');
}
}
/**
* Delete an existing appointment record from the database.
*
* @param int $appointment_id The record id to be deleted.
* @return bool Returns the delete operation result.
*/
public function delete($appointment_id) {
$this->db->where('id', $appointment_id);
return $this->db->delete('ea_appointments');
}
/**
* Get a specific row from the appointments table.
*
* @param int $appointment_id The record's id to be returned.
* @return array Returns an associative array with the selected
* record's data. Each key has the same name as the database
* field names.
*/
public function get_row($appointment_id) {
return $this->db->get_where('ea_appointments', array('id' => $appointment_id))->row_array();
}
/**
* Get a specific field value from the database.
*
* @param string $field_name The field name of the value to be
* returned.
* @param int $appointment_id The selected record's id.
* @return string Returns the records value from the database.
*/
public function get_value($field_name, $appointment_id) {
return $this->db->get_where('ea_appointments', array('id' => $appointment_id))->row_array()[$field_name];
}
/**
* Get all, or specific records from appointment's table.
*
* @example $this->Model->getBatch('id = ' . $recordId);
*
* @param string $where_clause (OPTIONAL) The WHERE clause of
* the query to be executed. DO NOT INCLUDE 'WHERE' KEYWORD.
* @return array Returns the rows from the database.
*/
public function get_batch($where_clause = '') {
if ($where_clause != '') {
$this->db->where($where_clause);
}
return $this->db->get('ea_appointments')->results_array();
}
}
/* End of file appointments_model.php */
/* Location: ./application/models/appointments_model.php */