Template functions every MD theme developer should know

The hidden power of Marketers Delight comes with its rich development tools, and there’s no better way to dive in than with template functions. Here’s the best you need to know:

Table of contents

A quick list of the functions covered in this guide.

1. Get admin settings data

The custom options MD stores from the admin screen can be found in the md_setting() function. To access option keys, follow the inputs below.

md_setting( $keys, $default );

  • $keys (string|array) Optional. Returns full options array, or specified option key
  • $default (string|bool|array) Optional. If no option found, return manual default value

Examples

Get primary color in MD > Site Design > Colors and set default color if option not set.

md_setting( array( ‘colors’, ‘site’, ‘primary’ ), ‘#000’ );

Get entire options group of MD share settings only.

md_setting( ‘share’ );

Get list of integrations data with variables.

$option = md_setting(); print_r( $option[‘integrations’][‘services’] );

2. Get post meta

You can retrieve and use the post meta data saved to any given post across post types that have MD settings added to the editor. This function usually finds the post ID on its own, and you can set a custom post ID if needed.

md_post_meta( $keys, $id, $default );

  • $keys (string|array) Optional. Returns full options array, or specified option key
  • $id (string|int) Optional. Post ID of any single post/page
  • $default (string|bool|array) Optional. If no option found, return manual default value

Examples

Return all MD post meta of current page.

md_post_meta();

Gets post meta for any custom Floating Bars added to this page only.

md_post_meta( array( ‘optins’, ‘floating_bars’ ) );

Gets post meta specified by post ID.

md_post_meta( null, 907 );

3. Get term meta

Similar to post meta, except for getting terms data from categories and custom taxonomies. This function usually finds the term ID on its own, and you can set a custom post ID if needed.

md_term_meta( $keys, $id, $default );

  • $keys (string|array) Optional. Returns full options array, or specified option key
  • $id (string|int) Optional. Post ID of any single post/page
  • $default (string|bool|array) Optional. If no option found, return manual default value

Examples

Return all MD term meta of current page.

md_term_meta();

Gets post meta for any custom Floating Bars added to this page only.

md_term_meta( array( ‘optins’, ‘floating_bars’ ) );

Gets post meta specified by post ID.

md_term_meta( null, 907 );

4. Get post meta or term meta

When the same options are used across post and term meta it can be useful to search the current template for either post meta to exist, only where appropriate.

md_meta( $keys, $id, $default );

Uses the same parameters as md_post_meta and md_term_meta, so apply parameters consistently.

5. MD conditional functions

Similar to WordPress conditional tags, MD comes with some time-saving helper functions that let you dig into the same precise layout controls in your own custom templates.

Check if has site logo

if ( md_has_logo() ) {
	echo "yes, logo is uploaded';
}

Check if page has sidebar

if ( md_has_sidebar() ) {
	add_action( 'md_hook_after_sidebar', 'my_custom_function_name' );
}

Check if page has headline

if ( md_has_headline() ) {
	add_action( 'md_hook_byline' 'my_custom_function_name' );
}

See full list in /marketers-delight/lib/functions/conditionals.php

6. Generate style tags

When combining color design options to style an element, it is useful to have a function that plugs in user’s custom color options and generates an inline style tag with background color, image, text color, and other strict styles.

md_style( $fields );

  • $fields (array) Required. Returns full options array, or specified option key

Examples

Create style tag for custom post meta color options.

$bg_color = md_setting( array( 'my_custom_option', 'bg_color' ), '#000' );
$text_color = md_setting( array( 'my_custom_option', 'text_color' ), '#FFF' );
$style = md_style( array(
	'bg_color' => $bg_color,
	'text_color' => $text_color
	'border' => array( 1, 'solid', '#00ffff' )
) );
<div class="my-div"<?php echo $style; ?>>
	<p>Custom content here.</p>
</div>

Once added to an HTML tag, $style will output to style="background-color: #000;color:FFF;"

Parameters

  • bg_color => Add a background color code
  • bg_image => Set a background image URL to element
  • bg_size => Set background-size CSS to cover or other value
  • border (array) => Set border width, style, and color
  • color => Set text color
  • width => Set width in pixels (do not include px after number)
  • width_unit => Change unit from pixels to em, %, rem, or other measurement
  • max_width => Instead of setting a hard width, set max-width
  • height => Set height of element in pixels

6. Render font icons

As of MD5.2.3 you can use the md_icon function to show font icons in templates. By default this function returns the icon template HTML and be customized to only return the class name.

The main reason for this function is to check if the current icon name exists in your MD icon library. If no icon found, this function will not render.

md_icon( $icon, $args );

  • $icon (string) Required. Name of icon without md-icon- prefix
  • $args (array|bool) Optional. Set as array to use custom arguments. Simply return as true to render the class name of the icon only

Examples

Show book icon. This returns <i class="md-icon-book"></i>

md_icon( 'book' );

Return icon class name only, as in md-icon-book

md_icon( 'book', true );

Return icon markup with custom classes

md_icon( 'book', array(
	'classes' => 'custom-icon-class'
) );

7. Rebuild the MD stylesheet

Each time you save MD settings or update to a new version, the MD stylesheet is dynamically rebuilt into the static style.css file in the theme’s root directory.

To rebuild the MD stylesheet manually on your own actions use:

md_compile_css();

You should not let this function run on every page load and only use it for a one-time page refresh before removing it from your child theme. Works best to tie to a user action.

You can also run this by adding ?md=compile_css to the end of the current URL (only admins can execute this) .

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MD.com

The Messenger

27 messages 23 likes

Under the hood, MD has a remarkably efficient way to help you access your data and hook custom options into your website's functionality.

This is a compilation of some of the most important template functions available in child theme and dropin development, and you ought to know them if you are working on any custom projects.

See the full guide...

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