forked from mirrors/easyappointments
406 lines
15 KiB
PHP
406 lines
15 KiB
PHP
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
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/* ----------------------------------------------------------------------------
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* Easy!Appointments - Open Source Web Scheduler
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*
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* @package EasyAppointments
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* @author A.Tselegidis <alextselegidis@gmail.com>
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* @copyright Copyright (c) 2013 - 2016, Alex Tselegidis
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* @license http://opensource.org/licenses/GPL-3.0 - GPLv3
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* @link http://easyappointments.org
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* @since v1.0.0
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* ---------------------------------------------------------------------------- */
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/**
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* Appointments Model
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*
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* @package Models
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*/
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class Appointments_Model extends CI_Model {
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/**
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* Class Constructor
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*/
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public function __construct() {
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parent::__construct();
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}
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/**
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* Add an appointment record to the database.
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*
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* This method adds a new appointment to the database. If the
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* appointment doesn't exists it is going to be inserted, otherwise
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* the record is going to be updated.
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*
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* @param array $appointment Associative array with the appointment
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* data. Each key has the same name with the database fields.
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* @return int Returns the appointments id.
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*/
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public function add($appointment) {
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// Validate the appointment data before doing anything.
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$this->validate($appointment);
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// Perform insert() or update() operation.
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if (!isset($appointment['id'])) {
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$appointment['id'] = $this->_insert($appointment);
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} else {
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$this->_update($appointment);
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}
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return $appointment['id'];
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}
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/**
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* Check if a particular appointment record already exists.
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*
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* This method checks wether the given appointment already exists
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* in the database. It doesn't search with the id, but by using the
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* following fields: "start_datetime", "end_datetime", "id_users_provider",
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* "id_users_customer", "id_services".
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*
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* @param array $appointment Associative array with the appointment's
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* data. Each key has the same name with the database fields.
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* @return bool Returns wether the record exists or not.
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*/
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public function exists($appointment) {
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if (!isset($appointment['start_datetime'])
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|| !isset($appointment['end_datetime'])
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|| !isset($appointment['id_users_provider'])
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|| !isset($appointment['id_users_customer'])
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|| !isset($appointment['id_services'])) {
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throw new Exception('Not all appointment field values '
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. 'are provided : ' . print_r($appointment, TRUE));
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}
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$num_rows = $this->db->get_where('ea_appointments', array(
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'start_datetime' => $appointment['start_datetime'],
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'end_datetime' => $appointment['end_datetime'],
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'id_users_provider' => $appointment['id_users_provider'],
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'id_users_customer' => $appointment['id_users_customer'],
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'id_services' => $appointment['id_services'],))
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->num_rows();
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return ($num_rows > 0) ? TRUE : FALSE;
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}
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/**
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* Insert a new appointment record to the database.
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*
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* @param array $appointment Associative array with the appointment's
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* data. Each key has the same name with the database fields.
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* @return int Returns the id of the new record.
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*/
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protected function _insert($appointment) {
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$appointment['book_datetime'] = date('Y-m-d H:i:s');
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$appointment['hash'] = $this->generate_hash();
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if (!$this->db->insert('ea_appointments', $appointment)) {
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throw new Exception('Could not insert appointment record.');
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}
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return intval($this->db->insert_id());
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}
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/**
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* Update an existing appointment record in the database.
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*
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* The appointment data argument should already include the record
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* id in order to process the update operation.
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*
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* @expectedException DatabaseException Raises when the update operation
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* failes to complete successfully.
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*
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* @param array $appointment Associative array with the appointment's
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* data. Each key has the same name with the database fields.
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*/
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protected function _update($appointment) {
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$this->db->where('id', $appointment['id']);
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if (!$this->db->update('ea_appointments', $appointment)) {
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throw new Exception('Could not update appointment record.');
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}
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}
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/**
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* Find the database id of an appointment record.
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*
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* The appointment data should include the following fields in order
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* to get the unique id from the database: "start_datetime", "end_datetime",
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* "id_users_provider", "id_users_customer", "id_services".
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*
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* <strong>IMPORTANT!</strong> The record must already exists in the
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* database, otherwise an exception is raised.
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*
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* @param array $appointment Array with the appointment data. The
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* keys of the array should have the same names as the db fields.
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* @return int Returns the db id of the record that matches the apppointment
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* data.
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*/
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public function find_record_id($appointment) {
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$this->db->where(array(
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'start_datetime' => $appointment['start_datetime'],
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'end_datetime' => $appointment['end_datetime'],
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'id_users_provider' => $appointment['id_users_provider'],
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'id_users_customer' => $appointment['id_users_customer'],
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'id_services' => $appointment['id_services']
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));
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$result = $this->db->get('ea_appointments');
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if ($result->num_rows() == 0) {
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throw new Exception('Could not find appointment record id.');
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}
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return $result->row()->id;
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}
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/**
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* Validate appointment data before the insert or update operations
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* are executed.
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*
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* @param array $appointment Contains the appointment data.
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* @return bool Returns the validation result.
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*/
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public function validate($appointment) {
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$this->load->helper('data_validation');
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// If a appointment id is given, check wether the record exists
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// in the database.
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if (isset($appointment['id'])) {
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$num_rows = $this->db->get_where('ea_appointments',
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array('id' => $appointment['id']))->num_rows();
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if ($num_rows == 0) {
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throw new Exception('Provided appointment id does not '
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. 'exist in the database.');
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}
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}
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// Check if appointment dates are valid.
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if (!validate_mysql_datetime($appointment['start_datetime'])) {
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throw new Exception('Appointment start datetime is invalid.');
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}
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if (!validate_mysql_datetime($appointment['end_datetime'])) {
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throw new Exception('Appointment end datetime is invalid.');
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}
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// Check if the provider's id is valid.
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$num_rows = $this->db
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->select('*')
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->from('ea_users')
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->join('ea_roles', 'ea_roles.id = ea_users.id_roles', 'inner')
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->where('ea_users.id', $appointment['id_users_provider'])
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->where('ea_roles.slug', DB_SLUG_PROVIDER)
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->get()->num_rows();
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if ($num_rows == 0) {
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throw new Exception('Appointment provider id is invalid.');
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}
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if ($appointment['is_unavailable'] == FALSE) {
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// Check if the customer's id is valid.
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$num_rows = $this->db
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->select('*')
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->from('ea_users')
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->join('ea_roles', 'ea_roles.id = ea_users.id_roles', 'inner')
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->where('ea_users.id', $appointment['id_users_customer'])
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->where('ea_roles.slug', DB_SLUG_CUSTOMER)
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->get()->num_rows();
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if ($num_rows == 0) {
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throw new Exception('Appointment customer id is invalid.');
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}
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// Check if the service id is valid.
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$num_rows = $this->db->get_where('ea_services',
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array('id' => $appointment['id_services']))->num_rows();
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if ($num_rows == 0) {
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throw new Exception('Appointment customer id is invalid.');
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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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* Delete an existing appointment record from the database.
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*
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* @expectedException InvalidArgumentException Raises when the $appointment_id
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* is not an integer.
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*
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* @param numeric $appointment_id The record id to be deleted.
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* @return bool Returns the delete operation result.
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*/
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public function delete($appointment_id) {
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if (!is_numeric($appointment_id)) {
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throw new Exception('Invalid argument type $appointment_id (value:"' . $appointment_id . '")');
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}
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$num_rows = $this->db->get_where('ea_appointments', array('id' => $appointment_id))->num_rows();
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if ($num_rows == 0) {
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return FALSE; // Record does not exist.
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}
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$this->db->where('id', $appointment_id);
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return $this->db->delete('ea_appointments');
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}
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/**
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* Get a specific row from the appointments table.
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*
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* @param numeric $appointment_id The record's id to be returned.
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* @return array Returns an associative array with the selected
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* record's data. Each key has the same name as the database
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* field names.
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*/
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public function get_row($appointment_id) {
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if (!is_numeric($appointment_id)) {
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throw new Exception('Invalid argument given. Expected '
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. 'integer for the $appointment_id : ' . $appointment_id);
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}
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return $this->db->get_where('ea_appointments',
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array('id' => $appointment_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 string $field_name The field name of the value to be returned.
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* @param numeric $appointment_id The selected record's id.
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* @return string Returns the records value from the database.
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*/
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public function get_value($field_name, $appointment_id) {
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if (!is_numeric($appointment_id)) {
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throw new Exception('Invalid argument given, expected '
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. 'integer for the $appointment_id : ' . $appointment_id);
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}
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if (!is_string($field_name)) {
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throw new Exception('Invalid argument given, expected '
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. 'string for the $field_name : ' . $field_name);
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}
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if ($this->db->get_where('ea_appointments',
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array('id' => $appointment_id))->num_rows() == 0) {
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throw new Exception('The record with the provided id '
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. 'does not exist in the database : ' . $appointment_id);
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}
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$row_data = $this->db->get_where('ea_appointments',
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array('id' => $appointment_id))->row_array();
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if (!isset($row_data[$field_name])) {
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throw new Exception('The given field name does not '
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. 'exist in the database : ' . $field_name);
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}
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return $row_data[$field_name];
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}
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/**
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* Get all, or specific records from appointment's table.
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*
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* @example $this->Model->getBatch('id = ' . $recordId);
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*
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* @param string $where_clause (OPTIONAL) The WHERE clause of
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* the query to be executed. DO NOT INCLUDE 'WHERE' KEYWORD.
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* @return array Returns the rows from the database.
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*/
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public function get_batch($where_clause = '') {
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if ($where_clause != '') {
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$this->db->where($where_clause);
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}
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return $this->db->get('ea_appointments')->result_array();
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}
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/**
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* Generate a unique hash for the given appointment data.
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*
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* This method uses the current date-time to generate a unique
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* hash string that is later used to identify this appointment.
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* Hash is needed when the email is send to the user with an
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* edit link.
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*
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* @return string Returns the unique appointment hash.
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*/
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public function generate_hash() {
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$current_date = new DateTime();
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return md5($current_date->getTimestamp());
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}
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/**
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* Inserts or updates an unavailable period record in the database.
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*
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* @param array $unavailable Contains the unavaible data.
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* @return int Returns the record id.
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*/
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public function add_unavailable($unavailable) {
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// Validate period
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$start = strtotime($unavailable['start_datetime']);
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$end = strtotime($unavailable['end_datetime']);
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if ($start > $end) {
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throw new Exception('Unavailable period start must be prior to end.');
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}
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// Validate provider record
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$where_clause = array(
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'id' => $unavailable['id_users_provider'],
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'id_roles' => $this->db->get_where('ea_roles', array('slug' => DB_SLUG_PROVIDER))->row()->id
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);
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if ($this->db->get_where('ea_users', $where_clause)->num_rows() == 0) {
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throw new Exception('Provider id was not found in database.');
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}
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// Add record to database (insert or update).
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if (!isset($unavailable['id'])) {
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$unavailable['book_datetime'] = date('Y-m-d H:i:s');
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$unavailable['is_unavailable'] = true;
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$this->db->insert('ea_appointments', $unavailable);
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$unavailable['id'] = $this->db->insert_id();
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} else {
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$this->db->where(array('id' => $unavailable['id']));
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$this->db->update('ea_appointments', $unavailable);
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}
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return $unavailable['id'];
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}
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/**
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* Delete an unavailable period.
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*
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* @param numeric $unavailable_id Record id to be deleted.
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*/
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public function delete_unavailable($unavailable_id) {
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if (!is_numeric($unavailable_id)) {
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throw new Exception('Invalid argument type $unavailable_id (value:"' .
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$unavailable_id . '")');
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}
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$num_rows = $this->db->get_where('ea_appointments', array('id' => $unavailable_id))
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->num_rows();
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if ($num_rows == 0) {
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return FALSE; // Record does not exist.
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}
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$this->db->where('id', $unavailable_id);
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return $this->db->delete('ea_appointments');
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}
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/**
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* Clear google sync IDs from appointment record.
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*
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* @param numeric $provider_id The appointment provider record id.
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*/
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public function clear_google_sync_ids($provider_id) {
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if (!is_numeric($provider_id)) {
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throw new Exception('Invalid argument type $provider_id (value: "'
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. $provider_id . '")');
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}
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$this->db->update('ea_appointments', array('id_google_calendar' => NULL),
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array('id_users_provider' => $provider_id));
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}
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}
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/* End of file appointments_model.php */
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/* Location: ./application/models/appointments_model.php */
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