u-form-functions.php

<?php
/**
 * Form Functions
 *
 * @author      Elena ZH
 * @category    Core
 * @package     Functions
 * @version     1.1.5
 */
if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly
}

/**
 * Output form fileds.
 *
 * @param array $field
 */
function u_wp_form_field( $field ) {
    switch ($field['type']){
        case 'hidden' :
            u_wp_hidden_input( $field );
            break;
        case 'textarea' :
            u_wp_textarea_input( $field );
            break;
        case 'checkbox' :
            if( isset($field['options'] )){
                u_wp_checkbox( $field );
            }else{
                u_wp_checkbox_list( $field );
            }
            break;
        case 'select' :
            u_wp_select( $field );
            break;
        case 'radio' :
            u_wp_radio( $field );
            break;
        default:
            u_wp_text_input( $field );
            break;
    }
}

/**
 * Output a text input box.
 *
 * @param array $field
 */
function u_wp_text_input( $field ) {
	global $thepostid, $post;

	$thepostid              = empty( $thepostid ) ? $post->ID : $thepostid;
	$field['placeholder']   = isset( $field['placeholder'] ) ? $field['placeholder'] : '';
	$field['class']         = isset( $field['class'] ) ? $field['class'] : 'short';
	$field['style']         = isset( $field['style'] ) ? $field['style'] : '';
	$field['wrapper_class'] = isset( $field['wrapper_class'] ) ? $field['wrapper_class'] : '';
	$field['value']         = isset( $field['value'] ) ? $field['value'] : get_post_meta( $thepostid, $field['id'], true );
	$field['name']          = isset( $field['name'] ) ? $field['name'] : $field['id'];
	$field['type']          = isset( $field['type'] ) ? $field['type'] : 'text';
	$field['desc_tip']      = isset( $field['desc_tip'] ) ? $field['desc_tip'] : false;

	// Custom attribute handling
	$custom_attributes = array();

	if ( ! empty( $field['custom_attributes'] ) && is_array( $field['custom_attributes'] ) ) {

		foreach ( $field['custom_attributes'] as $attribute => $value ) {
			$custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $value ) . '"';
		}
	}

	echo '<div class="form-group ' . esc_attr( $field['id'] ) . '_field ' . esc_attr( $field['wrapper_class'] ) . '">';

    if( !empty($field['label'])){
        echo '<label for="' . esc_attr( $field['id'] ) . '">' . wp_kses_post( $field['label'] ) . '</label>';

        if ( ! empty( $field['description'] ) && false !== $field['desc_tip'] ) {
            echo u_help_tip( $field['description'] );
        }
    }

   $required = !empty($field['required']) ? 'required' : '';

	echo '<input type="' . esc_attr( $field['type'] ) . '" class="' . esc_attr( $field['class'] ) . ' form-control" style="' . esc_attr( $field['style'] ) . '" name="' . esc_attr( $field['name'] ) . '" id="' . esc_attr( $field['id'] ) . '" value="' . esc_attr( $field['value'] ) . '" placeholder="' . esc_attr( $field['placeholder'] ) . '" ' . implode( ' ', $custom_attributes ) . ' ' . $required . '  /> ';

	if ( ! empty( $field['description'] ) && false === $field['desc_tip'] ) {
		echo '<small class="description">' . wp_kses_post( $field['description'] ) . '</small>';
	}

	echo '</div>';
}

/**
 * Output a hidden input box.
 *
 * @param array $field
 */
function u_wp_hidden_input( $field ) {
	global $thepostid, $post;

	$thepostid      = empty( $thepostid ) ? $post->ID : $thepostid;
	$field['value'] = isset( $field['value'] ) ? $field['value'] : get_post_meta( $thepostid, $field['id'], true );
	$field['class'] = isset( $field['class'] ) ? $field['class'] : '';

	echo '<input type="hidden" class="' . esc_attr( $field['class'] ) . '" name="' . esc_attr( $field['id'] ) . '" id="' . esc_attr( $field['id'] ) . '" value="' . esc_attr( $field['value'] ) . '" /> ';
}

/**
 * Output a textarea input box.
 *
 * @param array $field
 */
function u_wp_textarea_input( $field ) {
	global $thepostid, $post;

	$thepostid              = empty( $thepostid ) ? $post->ID : $thepostid;
	$field['placeholder']   = isset( $field['placeholder'] ) ? $field['placeholder'] : '';
	$field['class']         = isset( $field['class'] ) ? $field['class'] : 'short';
	$field['style']         = isset( $field['style'] ) ? $field['style'] : '';
	$field['wrapper_class'] = isset( $field['wrapper_class'] ) ? $field['wrapper_class'] : '';
	$field['value']         = isset( $field['value'] ) ? $field['value'] : get_post_meta( $thepostid, $field['id'], true );
	$field['desc_tip']      = isset( $field['desc_tip'] ) ? $field['desc_tip'] : false;
	$field['name']          = isset( $field['name'] ) ? $field['name'] : $field['id'];
	$field['rows']          = isset( $field['rows'] ) ? $field['rows'] : 2;
	$field['cols']          = isset( $field['cols'] ) ? $field['cols'] : 20;

	// Custom attribute handling
	$custom_attributes = array();

	if ( ! empty( $field['custom_attributes'] ) && is_array( $field['custom_attributes'] ) ) {

		foreach ( $field['custom_attributes'] as $attribute => $value ) {
			$custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $value ) . '"';
		}
	}

    echo '<div class="form-group ' . esc_attr( $field['id'] ) . '_field ' . esc_attr( $field['wrapper_class'] ) . '">';

    if( !empty($field['label'])){
        echo '<label for="' . esc_attr( $field['id'] ) . '">' . wp_kses_post( $field['label'] ) . '</label>';

        if ( ! empty( $field['description'] ) && false !== $field['desc_tip'] ) {
            echo u_help_tip( $field['description'] );
        }
    }

    $required = !empty($field['required']) ? 'required' : '';

	echo '<textarea class="form-control ' . esc_attr( $field['class'] ) . '" style="' . esc_attr( $field['style'] ) . '"  name="' . esc_attr( $field['name'] ) . '" id="' . esc_attr( $field['id'] ) . '" placeholder="' . esc_attr( $field['placeholder'] ) . '" rows="' . esc_attr( $field['rows'] ) . '" cols="' . esc_attr( $field['cols'] ) . '" ' . implode( ' ', $custom_attributes ) . ' ' . $required . '>' . esc_textarea( $field['value'] ) . '</textarea> ';

	if ( ! empty( $field['description'] ) && false === $field['desc_tip'] ) {
		echo '<small class="description">' . wp_kses_post( $field['description'] ) . '</small>';
	}

	echo '</div>';
}

/**
 * Output a checkbox input box.
 *
 * @param array $field
 */
function u_wp_checkbox( $field ) {
	global $thepostid, $post;

	$thepostid              = empty( $thepostid ) ? $post->ID : $thepostid;
	$field['class']         = isset( $field['class'] ) ? $field['class'] : 'checkbox';
	$field['style']         = isset( $field['style'] ) ? $field['style'] : '';
	$field['wrapper_class'] = isset( $field['wrapper_class'] ) ? $field['wrapper_class'] : '';
	$field['value']         = isset( $field['value'] ) ? $field['value'] : get_post_meta( $thepostid, $field['id'], true );
	$field['cbvalue']       = isset( $field['cbvalue'] ) ? $field['cbvalue'] : 'yes';
	$field['name']          = isset( $field['name'] ) ? $field['name'] : $field['id'];
	$field['desc_tip']      = isset( $field['desc_tip'] ) ? $field['desc_tip'] : false;

	// Custom attribute handling
	$custom_attributes = array();

	if ( ! empty( $field['custom_attributes'] ) && is_array( $field['custom_attributes'] ) ) {

		foreach ( $field['custom_attributes'] as $attribute => $value ) {
			$custom_attributes[] = esc_attr( $attribute ) . '="' . esc_attr( $value ) . '"';
		}
	}

    $required = !empty($field['required']) ? 'required' : '';

    echo '<div class="form-check ' . esc_attr( $field['id'] ) . '_field ' . esc_attr( $field['wrapper_class'] ) . '">';

	echo '<input type="checkbox" class="form-check-input ' . esc_attr( $field['class'] ) . '" style="' . esc_attr( $field['style'] ) . '" name="' . esc_attr( $field['name'] ) . '" id="' . esc_attr( $field['id'] ) . '" value="' . esc_attr( $field['cbvalue'] ) . '" ' . checked( $field['value'], $field['cbvalue'], false ) . '  ' . implode( ' ', $custom_attributes ) . ' ' . $required . '/> ';

    if( !empty($field['label'])){
        echo '<label class="form-check-label" for="' . esc_attr( $field['id'] ) . '">' . wp_kses_post( $field['label'] ) . '</label>';

        if ( ! empty( $field['description'] ) && false !== $field['desc_tip'] ) {
            echo u_help_tip( $field['description'] );
        }
    }

	if ( ! empty( $field['description'] ) && false === $field['desc_tip'] ) {
		echo '<small class="description">' . wp_kses_post( $field['description'] ) . '</small>';
	}

	echo '</div>';
}

/**
 * Output a select input box.
 *
 * @param array $field Data about the field to render.
 */
function u_wp_select( $field ) {
	global $thepostid, $post;

	$thepostid = empty( $thepostid ) ? $post->ID : $thepostid;
	$field     = wp_parse_args(
		$field, array(
			'class'             => 'select short',
			'style'             => '',
			'wrapper_class'     => '',
			'value'             => get_post_meta( $thepostid, $field['id'], true ),
			'name'              => $field['id'],
			'desc_tip'          => false,
			'custom_attributes' => array(),
		)
	);

	$wrapper_attributes = array(
		'class' => $field['wrapper_class'] . " form-group {$field['id']}_field",
	);

	$label_attributes = array(
		'for' => $field['id'],
	);

	$field_attributes          = (array) $field['custom_attributes'];
	$field_attributes['style'] = $field['style'];
	$field_attributes['id']    = $field['id'];
	$field_attributes['name']  = $field['name'];
	$field_attributes['class'] = $field['class'] . " form-control";

	$tooltip     = ! empty( $field['description'] ) && false !== $field['desc_tip'] ? $field['description'] : '';
	$description = ! empty( $field['description'] ) && false === $field['desc_tip'] ? $field['description'] : '';
    $required    = !empty($field['required']) ? 'required' : '';
	?>
	<div <?php echo u_implode_html_attributes( $wrapper_attributes ); ?>>

        <?php if( !empty($field['label'])){ ?>
            <label <?php echo u_implode_html_attributes( $label_attributes ); ?>><?php echo wp_kses_post( $field['label'] ); ?></label>
            <?php if ( $tooltip ) : ?>
                <?php echo u_help_tip( $tooltip ); ?>
            <?php endif; ?>
		<?php } ?>

		<select <?php echo u_implode_html_attributes( $field_attributes ); ?> <?php echo $required; ?>>
			<?php
			foreach ( $field['options'] as $key => $value ) {
				echo '<option value="' . esc_attr( $key ) . '"' . u_selected( $key, $field['value'] ) . '>' . esc_html( $value ) . '</option>';
			}
			?>
		</select>
		<?php if ( $description ) : ?>
			<small class="description"><?php echo wp_kses_post( $description ); ?></small>
		<?php endif; ?>
	</div>
	<?php
}

/**
 * Output a checkboxes input box.
 *
 * @param array $field
 */
function u_wp_checkbox_list( $field ) {
    global $thepostid, $post;

    $thepostid              = empty( $thepostid ) ? $post->ID : $thepostid;
    $field['class']         = isset( $field['class'] ) ? $field['class'] : 'select short';
    $field['style']         = isset( $field['style'] ) ? $field['style'] : '';
    $field['wrapper_class'] = isset( $field['wrapper_class'] ) ? $field['wrapper_class'] : '';
    $field['value']         = isset( $field['value'] ) ? $field['value'] : get_post_meta( $thepostid, $field['id'], true );
    $field['name']          = isset( $field['name'] ) ? $field['name'] : $field['id'];
    $field['desc_tip']      = isset( $field['desc_tip'] ) ? $field['desc_tip'] : false;

    echo '<div class="form-group ' . esc_attr( $field['id'] ) . '_field ' . esc_attr( $field['wrapper_class'] ) . '">';

    if( !empty($field['label'])){
        echo '<label for="' . esc_attr( $field['id'] ) . '">' . wp_kses_post( $field['label'] ) . '</label>';

        if ( ! empty( $field['description'] ) && false !== $field['desc_tip'] ) {
            echo u_help_tip( $field['description'] );
        }
    }

    $required = !empty($field['required']) ? 'required' : '';

    foreach ( $field['options'] as $key => $value ) {

        echo '<div class="form-check"><label class="form-check-label">';

        echo '<input name="' . esc_attr( $field['name'] ) . '"
				value="' . esc_attr( $key ) . '"
				type="checkbox"
				class="form-check-input ' . esc_attr( $field['class'] ) . '"
				style="' . esc_attr( $field['style'] ) . '"
				' . checked( esc_attr( $field['value'] ), esc_attr( $key ), false ) . '
				' . $required . '
				/> '. esc_html( $value ) . '</label>';
        echo '</div>';

        $required = '';
    }

    if ( ! empty( $field['description'] ) && false === $field['desc_tip'] ) {
        echo '<small class="description">' . wp_kses_post( $field['description'] ) . '</small>';
    }

    echo '</div>';
}


/**
 * Output a radio input box.
 *
 * @param array $field
 */
function u_wp_radio( $field ) {
	global $thepostid, $post;

	$thepostid              = empty( $thepostid ) ? $post->ID : $thepostid;
	$field['class']         = isset( $field['class'] ) ? $field['class'] : 'select short';
	$field['style']         = isset( $field['style'] ) ? $field['style'] : '';
	$field['wrapper_class'] = isset( $field['wrapper_class'] ) ? $field['wrapper_class'] : '';
	$field['value']         = isset( $field['value'] ) ? $field['value'] : get_post_meta( $thepostid, $field['id'], true );
	$field['name']          = isset( $field['name'] ) ? $field['name'] : $field['id'];
	$field['desc_tip']      = isset( $field['desc_tip'] ) ? $field['desc_tip'] : false;

	echo '<div class="form-group ' . esc_attr( $field['id'] ) . '_field ' . esc_attr( $field['wrapper_class'] ) . '">';

    if( !empty($field['label'])){
        echo '<label for="' . esc_attr( $field['id'] ) . '">' . wp_kses_post( $field['label'] ) . '</label>';

        if ( ! empty( $field['description'] ) && false !== $field['desc_tip'] ) {
            echo u_help_tip( $field['description'] );
        }
    }
    $required = !empty($field['required']) ? 'required' : '';

	foreach ( $field['options'] as $key => $value ) {

		echo '<div class="form-check"><label class="form-check-label">';

		echo '<input name="' . esc_attr( $field['name'] ) . '"
				value="' . esc_attr( $key ) . '"
				type="radio"
				class="form-check-input ' . esc_attr( $field['class'] ) . '"
				style="' . esc_attr( $field['style'] ) . '"
				' . checked( esc_attr( $field['value'] ), esc_attr( $key ), false ) . '
				' . $required . '
				/> '. esc_html( $value ) . '</label>';
        echo '</div>';

        $required = '';
	}

	if ( ! empty( $field['description'] ) && false === $field['desc_tip'] ) {
		echo '<small class="description">' . wp_kses_post( $field['description'] ) . '</small>';
	}

	echo '</div>';
}

/**
 * Functions to group Terms-Years by decade
 */
function u_group_year_terms( $taxonomy ){
	if( empty( $taxonomy ) ){
		return;
	}

	$tab_args = array(
		'taxonomy' 		=> $taxonomy,
		'hide_empty' 	=> true,
		'orderby' 		=> 'name',
		'order' 		=> 'ASC'
	);

	$tab_terms = get_terms( $tab_args  );

	$grouped_terms = array();

	if( !empty( $tab_terms ) ){
		foreach( $tab_terms as $term ){
			$grouped_terms[ substr( $term->name, 0, 3 ) . "0's" ][] = $term;
		}
	}

	return $grouped_terms;
}