forked from mirrors/easyappointments
372 lines
12 KiB
PHP
372 lines
12 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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* Customers Model
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*
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* @package Models
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*/
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class Customers_Model extends CI_Model {
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/**
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* Add a customer record to the database.
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*
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* This method adds a customer to the database. If the customer 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 $customer Associative array with the customer's data. Each key has the same name with the database
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* fields.
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*
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* @return int Returns the customer id.
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*/
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public function add($customer)
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{
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// Validate the customer data before doing anything.
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$this->validate($customer);
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// :: CHECK IF CUSTOMER ALREADY EXIST (FROM EMAIL).
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if ($this->exists($customer) && ! isset($customer['id']))
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{
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// Find the customer id from the database.
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$customer['id'] = $this->find_record_id($customer);
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}
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// :: INSERT OR UPDATE CUSTOMER RECORD
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if ( ! isset($customer['id']))
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{
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$customer['id'] = $this->_insert($customer);
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}
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else
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{
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$this->_update($customer);
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}
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return $customer['id'];
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}
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/**
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* Check if a particular customer record already exists.
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*
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* This method checks whether the given customer already exists in the database. It doesn't search with the id, but
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* with the following fields: "email"
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*
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* @param array $customer Associative array with the customer's data. Each key has the same name with the database
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* fields.
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*
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* @return bool Returns whether the record exists or not.
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*
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* @throws Exception If customer email property is missing.
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*/
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public function exists($customer)
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{
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if (empty($customer['email']))
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{
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throw new Exception('Customer\'s email is not provided.');
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}
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// This method shouldn't depend on another method of this class.
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$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.email', $customer['email'])
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->where('ea_roles.slug', DB_SLUG_CUSTOMER)
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->get()->num_rows();
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return ($num_rows > 0) ? TRUE : FALSE;
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}
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/**
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* Insert a new customer record to the database.
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*
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* @param array $customer Associative array with the customer's data. Each key has the same name with the database
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* fields.
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*
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* @return int Returns the id of the new record.
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*
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* @throws Exception If customer record could not be inserted.
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*/
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protected function _insert($customer)
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{
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// Before inserting the customer we need to get the customer's role id
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// from the database and assign it to the new record as a foreign key.
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$customer_role_id = $this->db
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->select('id')
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->from('ea_roles')
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->where('slug', DB_SLUG_CUSTOMER)
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->get()->row()->id;
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$customer['id_roles'] = $customer_role_id;
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if ( ! $this->db->insert('ea_users', $customer))
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{
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throw new Exception('Could not insert customer to the database.');
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}
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return (int)$this->db->insert_id();
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}
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/**
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* Update an existing customer record in the database.
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*
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* The customer 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 $customer Associative array with the customer's data. Each key has the same name with the database
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* fields.
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*
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* @return int Returns the updated record ID.
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*
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* @throws Exception If customer record could not be updated.
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*/
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protected function _update($customer)
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{
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$this->db->where('id', $customer['id']);
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if ( ! $this->db->update('ea_users', $customer))
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{
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throw new Exception('Could not update customer to the database.');
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}
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return (int)$customer['id'];
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}
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/**
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* Find the database id of a customer record.
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*
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* The customer data should include the following fields in order to get the unique id from the database: "email"
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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 $customer Array with the customer data. The keys of the array should have the same names as the
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* database fields.
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*
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* @return int Returns the ID.
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*
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* @throws Exception If customer record does not exist.
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*/
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public function find_record_id($customer)
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{
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if (empty($customer['email']))
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{
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throw new Exception('Customer\'s email was not provided: '
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. print_r($customer, TRUE));
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}
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// Get customer's role id
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$result = $this->db
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->select('ea_users.id')
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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.email', $customer['email'])
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->where('ea_roles.slug', DB_SLUG_CUSTOMER)
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->get();
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if ($result->num_rows() == 0)
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{
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throw new Exception('Could not find customer 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 customer data before the insert or update operation is executed.
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*
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* @param array $customer Contains the customer data.
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*
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* @return bool Returns the validation result.
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*
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* @throws Exception If customer validation fails.
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*/
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public function validate($customer)
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{
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$this->load->helper('data_validation');
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// If a customer id is provided, check whether the record
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// exist in the database.
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if (isset($customer['id']))
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{
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$num_rows = $this->db->get_where('ea_users',
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['id' => $customer['id']])->num_rows();
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if ($num_rows == 0)
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{
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throw new Exception('Provided customer id does not '
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. 'exist in the database.');
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}
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}
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$query = $this->db->get_where('ea_settings', ['name' => 'require_phone_number']);
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$phone_number_required = $query->num_rows() > 0 ? $query->row() === '1' : false;
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// Validate required fields
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if ( empty($customer['first_name'])
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|| empty($customer['last_name'])
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|| empty($customer['email'])
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|| (empty($customer['phone_number']) && $phone_number_required))
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{
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throw new Exception('Not all required fields are provided: '
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. print_r($customer, TRUE));
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}
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// Validate email address
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if ( ! filter_var($customer['email'], FILTER_VALIDATE_EMAIL))
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{
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throw new Exception('Invalid email address provided: '
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. $customer['email']);
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}
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// When inserting a record the email address must be unique.
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$customer_id = (isset($customer['id'])) ? $customer['id'] : '';
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$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_roles.slug', DB_SLUG_CUSTOMER)
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->where('ea_users.email', $customer['email'])
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->where('ea_users.id <>', $customer_id)
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->get()
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->num_rows();
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if ($num_rows > 0)
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{
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throw new Exception('Given email address belongs to another customer record. '
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. 'Please use a different email.');
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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 customer record from the database.
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*
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* @param int $customer_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 $customer_id argument is invalid.
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*/
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public function delete($customer_id)
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{
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if ( ! is_numeric($customer_id))
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{
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throw new Exception('Invalid argument type $customer_id: ' . $customer_id);
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}
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$num_rows = $this->db->get_where('ea_users', ['id' => $customer_id])->num_rows();
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if ($num_rows == 0)
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{
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return FALSE;
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}
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return $this->db->delete('ea_users', ['id' => $customer_id]);
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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 $customer_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 $customer_id argumnet is invalid.
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*/
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public function get_row($customer_id)
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{
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if ( ! is_numeric($customer_id))
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{
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throw new Exception('Invalid argument provided as $customer_id : ' . $customer_id);
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}
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return $this->db->get_where('ea_users', ['id' => $customer_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 int $customer_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 $customer_id argument is invalid.
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* @throws Exception If $field_name argument is invalid.
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* @throws Exception If requested customer record does not exist in the database.
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* @throws Exception If requested field name does not exist in the database.
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*/
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public function get_value($field_name, $customer_id)
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{
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if ( ! is_numeric($customer_id))
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{
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throw new Exception('Invalid argument provided as $customer_id: '
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. $customer_id);
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}
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if ( ! is_string($field_name))
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{
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throw new Exception('$field_name argument is not a string: '
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. $field_name);
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}
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if ($this->db->get_where('ea_users', ['id' => $customer_id])->num_rows() == 0)
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{
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throw new Exception('The record with the $customer_id argument '
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. 'does not exist in the database: ' . $customer_id);
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}
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$row_data = $this->db->get_where('ea_users', ['id' => $customer_id]
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)->row_array();
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if ( ! isset($row_data[$field_name]))
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{
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throw new Exception('The given $field_name argument does not'
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. 'exist in the database: ' . $field_name);
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}
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$customer = $this->db->get_where('ea_users', ['id' => $customer_id])->row_array();
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return $customer[$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 $whereClause (OPTIONAL) The WHERE clause of the query to be executed. DO NOT INCLUDE 'WHERE'
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* KEYWORD.
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*
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* @return array Returns the rows from the database.
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*/
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public function get_batch($where_clause = '')
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{
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$customers_role_id = $this->get_customers_role_id();
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if ($where_clause != '')
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{
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$this->db->where($where_clause);
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}
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$this->db->where('id_roles', $customers_role_id);
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return $this->db->get('ea_users')->result_array();
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}
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/**
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* Get the customers role id from the database.
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*
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* @return int Returns the role id for the customer records.
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*/
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public function get_customers_role_id()
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{
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return $this->db->get_where('ea_roles', ['slug' => DB_SLUG_CUSTOMER])->row()->id;
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}
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}
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