557 lines
19 KiB
PHP
557 lines
19 KiB
PHP
<?php defined('BASEPATH') OR 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 - 2020, 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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* 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 appointment doesn't exists it is going to be inserted,
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* otherwise the record is going to be updated.
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*
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* @param array $appointment Associative array with the appointment data. Each key has the same name with the
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* database fields.
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*
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* @return int Returns the appointments id.
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*/
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public function add($appointment)
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{
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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($appointment['id']))
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{
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$appointment['id'] = $this->_insert($appointment);
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}
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else
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{
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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 whether the given appointment already exists in the database. It doesn't search with the id,
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* but by using the following fields: "start_datetime", "end_datetime", "id_users_provider", "id_users_customer",
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* "id_services".
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*
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* @param array $appointment Associative array with the appointment's data. Each key has the same name with the
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* database fields.
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*
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* @return bool Returns whether the record exists or not.
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*
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* @throws Exception If appointment fields are missing.
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*/
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public function exists($appointment)
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{
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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($appointment['id_services']))
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{
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throw new Exception('Not all appointment field values are provided: '
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. print_r($appointment, TRUE));
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}
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$num_rows = $this->db->get_where('ea_appointments', [
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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' => $appointment['id_services'],
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])
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->num_rows();
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return ($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 $appointment Associative array with the appointment's data. Each key has the same name with the
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* database fields.
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*
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* @return int Returns the id of the new record.
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*
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* @throws Exception If appointment record could not be inserted.
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*/
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protected function _insert($appointment)
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{
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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', $appointment))
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{
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throw new Exception('Could not insert appointment record.');
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}
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return (int)$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 ID in order to process the update operation.
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*
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* @param array $appointment Associative array with the appointment's data. Each key has the same name with the
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* database fields.
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*
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* @throws Exception If appointment record could not be updated.
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*/
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protected function _update($appointment)
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{
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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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{
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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 to get the unique id from the database:
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* "start_datetime", "end_datetime", "id_users_provider", "id_users_customer", "id_services".
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*
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* IMPORTANT: The record must already exists in the database, otherwise an exception is raised.
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*
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* @param array $appointment Array with the appointment data. The keys of the array should have the same names as
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* the db fields.
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*
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* @return int Returns the db id of the record that matches the appointment data.
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*
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* @throws Exception If appointment could not be found.
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*/
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public function find_record_id($appointment)
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{
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$this->db->where([
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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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{
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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 are executed.
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*
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* @param array $appointment Contains the appointment data.
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*
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* @return bool Returns the validation result.
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*
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* @throws Exception If appointment validation fails.
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*/
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public function validate($appointment)
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{
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$this->load->helper('data_validation');
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// If a appointment id is given, check whether the record exists
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// in the database.
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if (isset($appointment['id']))
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{
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$num_rows = $this->db->get_where('ea_appointments',
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['id' => $appointment['id']])->num_rows();
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if ($num_rows == 0)
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{
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throw new Exception('Provided appointment id does not 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($appointment['start_datetime']))
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{
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throw new Exception('Appointment start datetime is invalid.');
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}
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if ( ! validate_mysql_datetime($appointment['end_datetime']))
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{
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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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{
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throw new Exception('Appointment provider id is invalid.');
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}
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if ($appointment['is_unavailable'] == FALSE)
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{
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// Check if the customer's id is valid.
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$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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{
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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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['id' => $appointment['id_services']])->num_rows();
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if ($num_rows == 0)
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{
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throw new Exception('Appointment service 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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* @param int $appointment_id The record id to be deleted.
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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 $appointment_id argument is invalid.
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*/
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public function delete($appointment_id)
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{
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if ( ! is_numeric($appointment_id))
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{
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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', ['id' => $appointment_id])->num_rows();
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if ($num_rows == 0)
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{
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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 int $appointment_id The record's id to be returned.
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*
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* @return array Returns an associative array with the selected record's data. Each key has the same name as the
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* database field names.
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*
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* @throws Exception If $appointment_id argumnet is invalid.
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*/
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public function get_row($appointment_id)
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{
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if ( ! is_numeric($appointment_id))
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{
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throw new Exception('Invalid argument given. Expected integer for the $appointment_id: '
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. $appointment_id);
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}
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$appointment = $this->db->get_where('ea_appointments', ['id' => $appointment_id])->row_array();
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$this->load->model('timezones_model');
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$appointment = $this->timezones_model->convert_event_timezone($appointment);
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return $appointment;
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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 int $appointment_id The selected record's id.
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*
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* @return string Returns the records value from the database.
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*
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* @throws Exception If $appointment_id argument is invalid.
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* @throws Exception If $field_name argument is invalid.
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* @throws Exception If requested appointment record was not found.
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* @throws Exception If requested field name does not exist.
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*/
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public function get_value($field_name, $appointment_id)
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{
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if ( ! is_numeric($appointment_id))
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{
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throw new Exception('Invalid argument given, expected integer for the $appointment_id: '
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. $appointment_id);
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}
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if ( ! is_string($field_name))
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{
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throw new Exception('Invalid argument given, expected string for the $field_name: ' . $field_name);
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}
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if ($this->db->get_where('ea_appointments', ['id' => $appointment_id])->num_rows() == 0)
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{
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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', ['id' => $appointment_id])->row_array();
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if ( ! isset($row_data[$field_name]))
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{
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throw new Exception('The given field name does not exist in the database: ' . $field_name);
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}
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$this->load->model('timezones_model');
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$row_data = $this->timezones_model->convert_event_timezone($row_data);
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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:
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*
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* $this->Model->getBatch('id = ' . $recordId);
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*
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* @param mixed|null $where (OPTIONAL) The WHERE clause of the query to be executed. DO NOT INCLUDE 'WHERE'
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* KEYWORD.
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* @param mixed|null $order_by
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* @param int|null $limit
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* @param int|null $offset
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* @param bool $aggregates (OPTIONAL) Defines whether to add aggregations or not.
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*
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* @return array Returns the rows from the database.
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*/
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public function get_batch($where = NULL, $order_by = NULL, $limit = NULL, $offset = NULL, $aggregates = FALSE)
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{
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if ($where !== NULL)
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{
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$this->db->where($where);
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}
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if ($order_by)
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{
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$this->db->order_by($order_by);
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}
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$appointments = $this->db->get('ea_appointments', $limit, $offset)->result_array();
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$this->load->model('timezones_model');
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foreach ($appointments as &$appointment)
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{
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$appointment = $this->timezones_model->convert_event_timezone($appointment);
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if ($aggregates)
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{
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$appointment = $this->get_aggregates($appointment);
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}
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}
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return $appointments;
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}
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/**
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* Generate a unique hash for the given appointment data.
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*
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* This method uses the current date-time to generate a unique hash string that is later used to identify this
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* appointment. Hash is needed when the email is send to the user with an edit link.
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*
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* @return string Returns the unique appointment hash.
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*/
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public function generate_hash()
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{
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$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 $unavailable Contains the unavailable data.
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*
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* @return int Returns the record id.
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*
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* @throws Exception If unavailability validation fails.
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* @throws Exception If provider record could not be found in database.
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*/
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public function add_unavailable($unavailable)
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{
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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 > $end)
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{
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throw new Exception('Unavailable period start must be prior to end.');
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}
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// Validate provider record
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$where_clause = [
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'id' => $unavailable['id_users_provider'],
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'id_roles' => $this->db->get_where('ea_roles', ['slug' => DB_SLUG_PROVIDER])->row()->id
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];
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if ($this->db->get_where('ea_users', $where_clause)->num_rows() == 0)
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{
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throw new Exception('Provider id was not found in database.');
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}
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// Add record to database (insert or update).
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if ( ! isset($unavailable['id']))
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{
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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'] = $this->db->insert_id();
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}
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else
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{
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$this->db->where(['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 int $unavailable_id Record id to be deleted.
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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 $unavailable_id argument is invalid.
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*/
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public function delete_unavailable($unavailable_id)
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{
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if ( ! is_numeric($unavailable_id))
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{
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throw new Exception('Invalid argument type $unavailable_id: ' . $unavailable_id);
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}
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$num_rows = $this->db->get_where('ea_appointments', ['id' => $unavailable_id])->num_rows();
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if ($num_rows == 0)
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{
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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 int $provider_id The appointment provider record id.
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*
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* @throws Exception If $provider_id argument is invalid.
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*/
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public function clear_google_sync_ids($provider_id)
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{
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if ( ! is_numeric($provider_id))
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{
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throw new Exception('Invalid argument type $provider_id: ' . $provider_id);
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}
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$this->db->update('ea_appointments', ['id_google_calendar' => NULL],
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['id_users_provider' => $provider_id]);
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}
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/**
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* Get appointment count for the provided start datetime.
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*
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* @param int $service_id Selected service ID.
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* @param string $selected_date Selected date string.
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* @param string $hour Selected hour string.
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*
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* @return int Returns the appointment number at the selected start time.
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*/
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public function appointment_count_for_hour($service_id, $selected_date, $hour)
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{
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return $this->db->get_where('ea_appointments', [
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'id_services' => $service_id,
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'start_datetime' => date('Y-m-d H:i:s', strtotime($selected_date . ' ' . $hour . ':00'))
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])->num_rows();
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}
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/**
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* Returns the attendants number for selection period.
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*
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* @param DateTime $slot_start When the slot starts
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* @param DateTime $slot_end When the slot ends.
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* @param int $service_id Selected service ID.
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*
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* @return int Returns the number of attendants for selected time period.
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*/
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public function get_attendants_number_for_period(DateTime $slot_start, DateTime $slot_end, $service_id)
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{
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return (int)$this->db
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->select('count(*) AS attendants_number')
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->from('ea_appointments')
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->group_start()
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->where('start_datetime <=', $slot_start->format('Y-m-d H:i:s'))
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->where('end_datetime >', $slot_start->format('Y-m-d H:i:s'))
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->group_end()
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->or_group_start()
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->where('start_datetime <', $slot_end->format('Y-m-d H:i:s'))
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->where('end_datetime >=', $slot_end->format('Y-m-d H:i:s'))
|
|
->group_end()
|
|
->where('id_services', $service_id)
|
|
->get()
|
|
->row()
|
|
->attendants_number;
|
|
}
|
|
|
|
/**
|
|
* Get the aggregates of an appointment.
|
|
*
|
|
* @param array $appointment Appointment data.
|
|
*
|
|
* @return array Returns the appointment with the aggregates.
|
|
*/
|
|
private function get_aggregates(array $appointment)
|
|
{
|
|
$appointment['service'] = $this->db->get_where('ea_services',
|
|
['id' => $appointment['id_services']])->row_array();
|
|
$appointment['provider'] = $this->db->get_where('ea_users',
|
|
['id' => $appointment['id_users_provider']])->row_array();
|
|
$appointment['customer'] = $this->db->get_where('ea_users',
|
|
['id' => $appointment['id_users_customer']])->row_array();
|
|
return $appointment;
|
|
}
|
|
}
|