eme-attributes.php

<?php

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}

function eme_attributes_form( $eme_array ) {
	$eme_data = [];
	if ( isset( $eme_array['event_attributes'] ) ) {
		$eme_data = $eme_array['event_attributes'];
	} elseif ( isset( $eme_array['location_attributes'] ) ) {
		$eme_data = $eme_array['location_attributes'];
	}
	//We also get a list of attribute names and create a ddm list (since placeholders are fixed)
	$formats =
		get_option( 'eme_event_list_item_format' ) .
		get_option( 'eme_event_page_title_format' ) .
		get_option( 'eme_full_calendar_event_format' ) .
		get_option( 'eme_location_event_list_item_format' ) .
		get_option( 'eme_ical_title_format' ) .
		get_option( 'eme_ical_description_format' ) .
		get_option( 'eme_rss_description_format' ) .
		get_option( 'eme_rss_title_format' ) .
		get_option( 'eme_single_event_format' ) .
		get_option( 'eme_small_calendar_event_title_format' ) .
		get_option( 'eme_single_location_format' ) .
		get_option( 'eme_contactperson_email_body' ) .
		get_option( 'eme_contactperson_cancelled_email_body' ) .
		get_option( 'eme_contactperson_pending_email_body' ) .
		get_option( 'eme_respondent_email_body' ) .
		get_option( 'eme_registration_pending_email_body' ) .
		get_option( 'eme_registration_denied_email_body' ) .
		get_option( 'eme_registration_cancelled_email_body' ) .
		get_option( 'eme_registration_form_format' ) .
		get_option( 'eme_attendees_list_format' ) .
		get_option( 'eme_payment_form_header_format' ) .
		get_option( 'eme_payment_form_footer_format' ) .
		get_option( 'eme_multipayment_form_header_format' ) .
		get_option( 'eme_multipayment_form_footer_format' ) .
		get_option( 'eme_bookings_list_format' );
		#get_option('eme_location_baloon_format' ).
		#get_option('eme_location_page_title_format' ).

	// include all templates as well
	$templates = eme_get_templates();
	foreach ( $templates as $template ) {
		$formats .= $template['format'];
	}

	// include all direct strings too
	foreach ( $eme_array as $val ) {
		if ( is_string( $val ) ) {
			$formats .= $val;
		}
	}
	if ( isset( $eme_array['event_properties'] ) ) {
		# we know it is an event then
		$event_props = eme_unserialize( $eme_array['event_properties'] );
		foreach ( $event_props as $key => $val ) {
			if ( strstr( $key, '_tpl' ) ) {
				$formats .= $val;
			}
		}
	}
	if ( isset( $eme_array['location_properties'] ) ) {
		# we know it is a location then
		$location_props = eme_unserialize( $eme_array['location_properties'] );
		foreach ( $location_props as $key => $val ) {
			if ( strstr( $key, '_tpl' ) ) {
				$formats .= $val;
			}
		}
	}

	//We now have one long string of formats
	preg_match_all( '/#(ESC|URL)?_ATT\{.+?\}(\{.+?\})?/', $formats, $placeholders );

	$attributes = [];
	//Now grab all the unique attributes we can use in our event or location.
	foreach ( $placeholders[0] as $result ) {
		$result    = str_replace( '#ESC', '#', $result );
		$result    = str_replace( '#URL', '#', $result );
		$attribute = substr( substr( $result, 0, strpos( $result, '}' ) ), 6 );
		if ( ! in_array( $attribute, $attributes ) ) {
			$attributes[] = $attribute;
		}
	}
	?>
	<div class="wrap">
	<?php if ( count( $attributes ) > 0 ) { ?> 
		<p><?php esc_html_e( 'Add attributes here', 'events-made-easy' ); ?></p>
		<table class="form-table eme_attributes">
		<thead>
			<tr>
				<th><strong><?php esc_html_e( 'Attribute Name', 'events-made-easy' ); ?></strong></th>
				<th><strong><?php esc_html_e( 'Value', 'events-made-easy' ); ?></strong></th>
			</tr>
		</thead>    
		<tbody id="eme_attr_body">
			<?php
			$count = 1;
			if ( is_array( $eme_data ) and count( $eme_data ) > 0 ) {
				foreach ( $eme_data as $name => $value ) {
					?>
					<tr id="eme_attr_<?php echo $count; ?>">
					<td>
						<select name="eme_attr_<?php echo $count; ?>_ref">
							<?php
							if ( ! in_array( $name, $attributes ) ) {
								echo "<option value='".esc_attr($name)."'>".esc_html($name)." (" . esc_html__( 'Not defined in templates', 'events-made-easy' ) . ')</option>';
							}
							foreach ( $attributes as $attribute ) {
								if ( $attribute == $name ) {
									echo "<option selected='selected'>" . eme_esc_html( $attribute ) . '</option>';
								} else {
									echo '<option>' . eme_esc_html( $attribute ) . '</option>';
								}
							}
							?>
						</select>
						<a href="#"><?php esc_html_e( 'Remove', 'events-made-easy' ); ?></a>
					</td>
					<td>
			<textarea rows="2" cols="40" id="eme_attr_<?php echo $count; ?>_id" name="eme_attr_<?php echo $count; ?>_name"><?php echo eme_esc_html( $value ); ?></textarea>
					</td>
					</tr>
					<?php
					++$count;
				}
			} else {
				?>
					<tr id="eme_attr_<?php echo $count; ?>">
					<td>
						<select name="eme_attr_<?php echo $count; ?>_ref">
							<?php
							foreach ( $attributes as $attribute ) {
								echo '<option>' . eme_esc_html( $attribute ) . '</option>';
							}
							?>
						</select>
						<a href="#"><?php esc_html_e( 'Remove', 'events-made-easy' ); ?></a>
					</td>
					<td>
			<textarea rows="2" cols="40" id="eme_attr_<?php echo $count; ?>_id" name="eme_attr_<?php echo $count; ?>_name"></textarea>
					</td>
					</tr>
					<?php
			}
			?>
		</tbody>
		<tfoot>
			<tr>
				<td colspan="2"><a href="#" id="eme_attr_add_tag"><?php esc_html_e( 'Add new tag', 'events-made-easy' ); ?></a></td>
			</tr>
		</tfoot>
		</table>
		<?php
	} else {
		?>
		<p><?php esc_html_e( 'No attributes defined yet. If you want attributes, you first need to define/use some in the Settings page. See the section about custom attributes on the documention site for more info.', 'events-made-easy' ); ?></p>
		<?php
	} //endif count attributes
	?>
	</div>
	<?php
}
?>