Enhancement - Date time slot booking

assets/css/admin.scss

@@ -2288,7 +2288,8 @@ p.search-box {
 
 							.everest-forms-current-date-format,
 							.everest-forms-past-date-disable-format,
-							.everest-forms-min-max-date-format {
+							.everest-forms-min-max-date-format,
+							.everest-forms-slot-booking {
 								margin-bottom: 14px;
 							}
 

assets/js/admin/form-builder.js

@@ -559,6 +559,13 @@
 				var id = $( this ).attr( 'data-field-id' );
 				EVFPanelBuilder.dateSettingToggler( id, $('#everest-forms-field-option-' + id + '-datetime_style' ).val() );
 			} );
+
+			if($('.everest-forms-slot-booking input').is(":checked")) {
+				//checked and hide past dates.
+				disable_past_date = $(document).find('.everest-forms-past-date-disable-format input');
+				disable_past_date.attr("checked", true);
+				disable_past_date.parent().hide();
+			}
 		},
 
 		/**
@@ -988,6 +995,18 @@
 					$( '#everest-forms-field-option-' + id ).removeClass( 'everest-forms-confirm-enabled' ).addClass( 'everest-forms-confirm-disabled' );
 				}
 			});
+			// Real-time updates for slot booking
+			$builder.on('change', '.everest-forms-slot-booking input', function(event) {
+				if($(this).is(":checked")) {
+					disable_past_date = $(document).find('.everest-forms-past-date-disable-format input');
+					if(disable_past_date.is(":not(:checked)")) {
+						disable_past_date.prop("checked", true);
+					}
+					disable_past_date.parent().hide();
+				} else {
+					disable_past_date.parent().show();
+				}
+			});
 
 			// Real-time updates for "Placeholder" field option.
 			$builder.on( 'input', '.everest-forms-field-option-row-placeholder input', function(e) {

assets/js/frontend/everest-forms.js

@@ -185,6 +185,45 @@ jQuery( function ( $ ) {
 					}
 				} );
 			}
+				$(document).find(".evf-field-date-time input").on('change', function (event) {
+					var slotBooking = $(this).data('slot-booking'),
+						targetLabel = $(this).parent(),
+						errorLabel = $(this).parent().find('.evf-error');
+					if(slotBooking === 1) {
+						var dataTimeValue = $(this).val(),
+						dateFormat = $(this).data('date-format'),
+						dateTimeFormat = $(this).data('date-time'),
+						mode = $(this).data('mode'),
+						form_id = $(this).data('form-id'),
+						time_interval = $(this).data('time-interval'),
+						data = {'action':'everest_forms_slot_booking', 'data-time-value':dataTimeValue, 'data-format': dateFormat, 'data-time-format': dateTimeFormat, 'mode': mode, 'form-id': form_id, 'time-interval':time_interval, 'security': everest_forms_params.everest_forms_slot_booking};
+
+						$.ajax({
+							url:everest_forms_params.ajax_url,
+							data: data,
+							type: 'POST',
+							beforeSend: function () {
+								var submitButton = $(document).find('.evf-submit-container button');
+								$(submitButton).prop('disabled', true);
+							},
+							success: function (res) {
+								if($(errorLabel).length) {
+									$(errorLabel).remove();
+								}
+								if(res.success === true) {
+									var message = res.data.message;
+									$(targetLabel).append('<label class="evf-error">'+message+'</label>');
+									var submitButton = $(document).find('.evf-submit-container button');
+									$(submitButton).prop('disabled', true);
+								} else {
+									var submitButton = $(document).find('.evf-submit-container button');
+									$(submitButton).prop('disabled', false);
+								}
+							}
+						});
+					}
+				})
+
 		},
 		init_datedropdown: function () {
 			//Dropdown logic here

changelog.txt

@@ -3,7 +3,8 @@
 - 2.0.2       - xx-xx-2023
 * Feature     - Regex validation for field.
 * Feature     - Custom CSS and JS for form.
-* Enhancement - Upgrade to the pro improve for dragging a field
+* Enhancement - Upgrade to the pro improve for dragging a field.
+* Enhancement  - Date time slot booking.
 * Fix         - Word count issue with Cyrillic text.
 
 - 2.0.1       - 14-06-2023

includes/abstracts/class-evf-form-fields.php

@@ -2555,6 +2555,36 @@ public function validate( $field_id, $field_submit, $form_data ) {
 					}
 				}
 
+				break;
+			case 'date-time':
+				$slot_booking = isset( $form_data['form_fields'][ $field_id ]['slot_booking_advanced'] ) ? $form_data['form_fields'][ $field_id ]['slot_booking_advanced'] : '';
+				if ( $slot_booking ) {
+					$datetime_format = isset( $form_data['form_fields'][ $field_id ]['datetime_format'] ) ? $form_data['form_fields'][ $field_id ]['datetime_format'] : '';
+					$date_format     = isset( $form_data['form_fields'][ $field_id ]['date_format'] ) ? $form_data['form_fields'][ $field_id ]['date_format'] : '';
+					$mode            = isset( $form_data['form_fields'][ $field_id ]['date_mode'] ) ? $form_data['form_fields'][ $field_id ]['date_mode'] : '';
+					$time_interval   = isset( $form_data['form_fields'][ $field_id ]['time_interval'] ) ? $form_data['form_fields'][ $field_id ]['time_interval'] : '';
+					$datetime_arr    = parse_datetime_values( $field_submit, $datetime_format, $date_format, $mode, $time_interval );
+					$booked_slot     = maybe_unserialize( get_option( 'evf_booked_slot', '' ) );
+					$form_id         = $form_data['id'];
+					$is_booked       = false;
+					if ( ! empty( $booked_slot ) && array_key_exists( $form_id, $booked_slot ) ) {
+						foreach ( $datetime_arr as $arr ) {
+
+							foreach ( $booked_slot[ $form_id ] as $slot ) {
+								if ( $arr[0] >= $slot[0] && $arr[1] <= $slot[1] ) {
+									$is_booked = true;
+									break;
+								} elseif ( $arr[0] >= $slot[0] && $arr[0] < $slot[1] && $arr[1] >= $slot[1] ) {
+									$is_booked = true;
+									break;
+								}
+							}
+						}
+					}
+					if ( $is_booked ) {
+						$validation_text = get_option( 'evf_' . $field_type . '_validation', esc_html__( 'This slot is already booked. Please choose other slot.', 'everest-forms' ) );
+					}
+				}
 				break;
 		}
 

includes/class-evf-ajax.php

@@ -101,6 +101,7 @@ public static function add_ajax_events() {
 			'ajax_form_submission'    => true,
 			'send_test_email'         => false,
 			'locate_form_action'      => false,
+			'slot_booking'            => true,
 			'active_addons'           => false,
 		);
 
@@ -864,6 +865,59 @@ public static function locate_form_action() {
 			);
 		}
 	}
+	/**
+	 * Slot booking.
+	 */
+	public static function slot_booking() {
+		try {
+			check_ajax_referer( 'everest_forms_slot_booking_nonce', 'security' );
+			$datetime_value  = isset( $_POST['data-time-value'] ) ? sanitize_text_field( wp_unslash( $_POST['data-time-value'] ) ) : '';
+			$datetime_format = isset( $_POST['data-time-format'] ) ? sanitize_text_field( wp_unslash( $_POST['data-time-format'] ) ) : '';
+			$date_format     = isset( $_POST['data-format'] ) ? sanitize_text_field( wp_unslash( $_POST['data-format'] ) ) : '';
+			$mode            = isset( $_POST['mode'] ) ? sanitize_text_field( wp_unslash( $_POST['mode'] ) ) : '';
+			$form_id         = isset( $_POST['form-id'] ) ? sanitize_text_field( wp_unslash( $_POST['form-id'] ) ) : '';
+			$time_interval   = isset( $_POST['time-interval'] ) ? sanitize_text_field( wp_unslash( $_POST['time-interval'] ) ) : '';
+			$datetime_arr    = parse_datetime_values( $datetime_value, $datetime_format, $date_format, $mode, $time_interval );
+
+			if ( empty( $datetime_arr ) ) {
+				wp_send_json_error(
+					array(
+						'message' => __( 'Please select at least one date time.', 'everest-forms' ),
+					)
+				);
+			}
+			$booked_slot = maybe_unserialize( get_option( 'evf_booked_slot', '' ) );
+			$is_booked   = false;
+			if ( ! empty( $booked_slot ) && array_key_exists( $form_id, $booked_slot ) ) {
+				foreach ( $datetime_arr as $arr ) {
+
+					foreach ( $booked_slot[ $form_id ] as $slot ) {
+						if ( $arr[0] >= $slot[0] && $arr[1] <= $slot[1] ) {
+							$is_booked = true;
+							break;
+						} elseif ( $arr[0] >= $slot[0] && $arr[0] < $slot[1] && $arr[1] >= $slot[1] ) {
+							$is_booked = true;
+							break;
+						}
+					}
+				}
+			}
+			if ( $is_booked ) {
+				wp_send_json_success(
+					array(
+						'message' => __( 'This slot is already booked. Please choose other slot', 'everest-forms' ),
+					)
+				);
+			}
+			wp_send_json_error(
+				array(
+					'message' => __( 'This slot is not booked.', 'everest-forms' ),
+				)
+			);
+
+		}
+	}
+
 	/**
 	 * Activate addons from builder.
 	 */

includes/class-evf-form-task.php

@@ -61,6 +61,7 @@ class EVF_Form_Task {
 	public function __construct() {
 		add_action( 'wp', array( $this, 'listen_task' ) );
 		add_filter( 'everest_forms_field_properties', array( $this, 'load_previous_field_value' ), 99, 3 );
+		add_action( 'everest_forms_complete_entry_save', array( $this, 'update_slot_booking_value' ), 10, 5 );
 	}
 
 	/**
@@ -1039,6 +1040,62 @@ public function entry_save( $fields, $entry, $form_id, $form_data = array() ) {
 		return $this->entry_id;
 	}
 
+	/**
+	 * Insert or update the slot booking data.
+	 *
+	 * @param int   $entry_id Entry id.
+	 * @param array $fields    List of form fields.
+	 * @param array $entry     User submitted data.
+	 * @param int   $form_id   Form ID.
+	 * @param array $form_data Prepared form settings.
+	 */
+	public function update_slot_booking_value( $entry_id, $fields, $entry, $form_id, $form_data ) {
+		$new_slot_booking_field_meta_key_list = array();
+		$time_interval                        = 0;
+		foreach ( $form_data['form_fields'] as $field ) {
+			if ( ( 'date-time' === $field['type'] ) && isset( $field['slot_booking_advanced'] ) && evf_string_to_bool( $field['slot_booking_advanced'] ) ) {
+				$new_slot_booking_field_meta_key_list[ $field['meta-key'] ] = array(
+					$field['datetime_format'],
+					$field['date_format'],
+					$field['date_mode'],
+				);
+				$time_interval = $field['time_interval'];
+			}
+		}
+
+		foreach ( $fields as $key => $value ) {
+			if ( array_key_exists( $value['meta_key'], $new_slot_booking_field_meta_key_list ) ) {
+				$new_value       = $value['value'];
+				$datetime_format = $new_slot_booking_field_meta_key_list[ $value['meta_key'] ][0];
+				$date_format     = $new_slot_booking_field_meta_key_list[ $value['meta_key'] ][1];
+				$mode            = $new_slot_booking_field_meta_key_list[ $value['meta_key'] ][2];
+				$datetime_arr    = parse_datetime_values( $new_value, $datetime_format, $date_format, $mode, $time_interval );
+			}
+		}
+
+		if ( ! empty( $datetime_arr ) ) {
+			$get_booked_slot = get_option( 'evf_booked_slot', array() );
+			$new_booked_slot = array( $form_id => $datetime_arr );
+
+			if ( empty( $get_booked_slot ) ) {
+				$all_booked_slot = maybe_serialize( $new_booked_slot );
+			} else {
+				$unserialized_booked_slot = maybe_unserialize( $get_booked_slot );
+
+				if ( array_key_exists( $form_id, $unserialized_booked_slot ) ) {
+					$booked_slot     = $unserialized_booked_slot[ $form_id ];
+					$booked_slot     = array_merge( (array) $booked_slot, $datetime_arr );
+					$new_booked_slot = array( $form_id => $booked_slot );
+				}
+
+				$all_booked_slot = maybe_serialize( array_replace( $unserialized_booked_slot, $new_booked_slot ) );
+			}
+
+			update_option( 'evf_booked_slot', $all_booked_slot );
+		}
+
+	}
+
 	/**
 	 * Load Previous Field Value.
 	 *

includes/class-evf-frontend-scripts.php

@@ -286,6 +286,7 @@ private static function get_script_data( $handle ) {
 					'submit'                               => esc_html__( 'Submit', 'everest-forms' ),
 					'disable_user_details'                 => get_option( 'everest_forms_disable_user_details' ),
 					'everest_forms_data_save'              => wp_create_nonce( 'everest_forms_data_save_nonce' ),
+					'everest_forms_slot_booking'           => wp_create_nonce( 'everest_forms_slot_booking_nonce' ),
 					'i18n_messages_required'               => get_option( 'everest_forms_required_validation' ),
 					'i18n_messages_url'                    => get_option( 'everest_forms_url_validation' ),
 					'i18n_messages_email'                  => get_option( 'everest_forms_email_validation' ),

includes/evf-core-functions.php

@@ -1128,6 +1128,7 @@ function evf_get_random_string( $length = 10 ) {
  * Get all forms.
  *
  * @param  bool $skip_disabled_entries True to skip disabled entries.
+ * @param bool $check_disable_storing_entry_info Check disable storing entry.
  * @return array of form data.
  */
 function evf_get_all_forms( $skip_disabled_entries = false, $check_disable_storing_entry_info = true ) {
@@ -4620,7 +4621,7 @@ function evf_file_get_contents( $file ) {
 	if ( $file ) {
 		$local_file = preg_replace( '/\\\\|\/\//', '/', plugin_dir_path( EVF_PLUGIN_FILE ) . $file );
 		 $response = file_get_contents($local_file);
-		 if( $response ){
+		 if ( $response ) {
 			return $response;
 		 }
 		global $wp_filesystem;
@@ -4636,7 +4637,80 @@ function evf_file_get_contents( $file ) {
 }
 
 /**
- * EVF word Count
+* Parses datetime values based on the provided format and mode.
+*
+* @param string $datetime_value   The datetime value to parse.
+* @param string $datetime_format  The format of the datetime value.
+* @param string $date_format      The format of the date.
+* @param string $mode             The mode of the datetime field,
+* @param int    $time_interval    The time interval in minutes.
+* @return array
+*/
+function parse_datetime_values( $datetime_value, $datetime_format, $date_format, $mode, $time_interval ) {
+	$datetime_arr = array();
+
+	switch ($datetime_format) {
+		case 'time':
+			$current_date = gmdate('Y-m-d');
+			$datetime_value = gmdate('H:i', strtotime($datetime_value));
+			$datetime_start = "$current_date $datetime_value";
+			$date_time = new DateTime($datetime_start);
+			$date_time->modify("+$time_interval minute");
+			$datetime_end = $date_time->format('Y-m-d H:i');
+			$datetime_arr[] = array($datetime_start, $datetime_end);
+			break;
+		case 'date':
+			if ('range' === $mode) {
+				$selected_dates = explode(' to ', $datetime_value);
+				if (count($selected_dates) >= 2) {
+					$datetime_start = "$selected_dates[0] 00:00";
+					$datetime_start = gmdate('Y-m-d H:i', strtotime($datetime_start));
+					$date_time = new DateTime($selected_dates[1]);
+					$date_time->modify('+23 hour');
+					$datetime_end = $date_time->format('Y-m-d H:i');
+					$datetime_arr[] = array($datetime_start, $datetime_end);
+				}
+			} else {
+				$selected_dates = explode(', ', $datetime_value);
+
+				foreach ($selected_dates as $selected_date) {
+					$datetime_start = "$selected_date 00:00";
+					$datetime_start = gmdate('Y-m-d H:i', strtotime($datetime_start));
+					$date_time = new DateTime($datetime_start);
+					$date_time->modify('+23 hour');
+
+					$datetime_end = $date_time->format('Y-m-d H:i');
+					$datetime_arr[] = array($datetime_start, $datetime_end);
+				}
+			}
+			break;
+		case 'date-time':
+			if ('range' === $mode) {
+				$selected_dates = explode(' to ', $datetime_value);
+				if (count($selected_dates) >= 2) {
+					$datetime_start = gmdate('Y-m-d H:i', strtotime($selected_dates[0]));
+					$datetime_end = gmdate('Y-m-d H:i', strtotime($selected_dates[1]));
+					$datetime_arr[] = array($datetime_start, $datetime_end);
+				}
+			} else {
+				$selected_dates = explode(', ', $datetime_value);
+
+				foreach ($selected_dates as $selected_date) {
+					$datetime_start = gmdate('Y-m-d H:i', strtotime($selected_date));
+					$date_time = new DateTime($datetime_start);
+					$date_time->modify("+$time_interval minute");
+					$datetime_end = $date_time->format('Y-m-d H:i');
+					$datetime_arr[] = array($datetime_start, $datetime_end);
+				}
+			}
+			break;
+	}
+
+	return $datetime_arr;
+}
+
+/*
+* EVF word Count
  * @since 2.0.2
  */
 function _evf_word_count( $text, $type = 'words', $settings = array() ) {