Advanced Page Template is a nice new approach to custom fields by page template. 
Please try to configure the custom fields easily in the template file itself using this plugin.
It doesn’t require to save any configuration data to database, just config the custom fields in template file itself as how wordpress recognize the templates – Its just wordpress way!
I think that it makes developing and deploying more easy and more sense for the developers. 🙂
Note: I highly recommend you to install and activate Advanced Custom Fields plugin so as to get its perfect benefit. Field Types only works with Advanced Custom Fields plugin.
<h4>Usage</h4>
Open a template file with any text editor and add some additional templating comment lines starting with @custom_field keyword:
Example 1:
<pre>
/*
* Template Name: 2column-layout
*
* @custom_field main, type: wysiwyg, label: Main content
* @custom_field sidebar, type: wysiwyg, label: Sidebar
*/
</pre>
Example 2:
<pre>
/*
* Template Name: Contact Page
*
* @custom_field photo, type: image, label: Photo of manager
* @custom_field phone, type: text
* @custom_field map, type: google_map
* 
* Note: The photo, phone, map are the custom field names in each '@custom_field' line,
* therefore use wordpress's 'get_post_meta' or ACF's 'get_field' method with those custom field names to get the values in this template. :)
*/
</pre>
Please bring the page edit link up in the backend and select the template which you just edited and hit ‘Update’ or ‘Save’ button. 
After page refreshing, You can’t miss new custom fields block from this template file.
Available Types and options with Advanced Custom Fields plugin are:
<pre>
/*
* @custom_field tab1, type: tab, instructions: Tab

* @custom_field field1, type: checkbox, choices: (1|2|3), label: Checkbox
* @custom_field field2, type: color_picker, label: Color Picker
* @custom_field field3, type: email, label: Email
* @custom_field field4, type: file, label: File
* @custom_field field5, type: google_map, label: Google map
* @custom_field field6, type: image, label: Image
* @custom_field field7, type: message, message: Message goes right here, label: Message
* @custom_field field8, type: number, label: Number
* @custom_field field9, type: page_link, label: Page link
* @custom_field field10, type: password, label: Password

* @custom_field tab2, type: tab, label: Tab

* @custom_field field11, type: post_object, label: Post object
* @custom_field field12, type: radio, choices: (1|2|3), label: Radio
* @custom_field field13, type: relationship, label: Relationship
* @custom_field field14, type: select, choices: (1|2|3), label: Select
* @custom_field field15, type: taxonomy, label: Taxonomy
* @custom_field field16, type: text, label: Text
* @custom_field field17, type: textarea, label: Textarea
* @custom_field field18, type: true_false, label: True/False
* @custom_field field19, type: user, label: User
* @custom_field field20, type: wysiwyg, label: Wysiwyg
*/
</pre>

Advanced Page Template

Advanced Page Template is a nice new approach to custom fields by page template.

donaldG2

This plugin uses the Repeater field of Advanced Custom Fields to add options for a Credit and Credit Link on each item in your Media Library. Currently this will only correlate and display for IMAGES on the front end. This does not support credits for .pdf files, .swf files, .doc files, etc.
Requires either <a href="http://www.advancedcustomfields.com/pro/" rel="nofollow ugc">Advanced Custom Fields Pro</a> or the <a href="http://www.advancedcustomfields.com/" rel="nofollow ugc">free version of ACF</a> with the <a href="http://www.advancedcustomfields.com/add-ons/repeater-field/" rel="nofollow ugc">Repeater Field</a> add-on.
I suggest using ACF Pro with this plugin.
ACF Fields are exported as a json file (for ACF Pro) in the ‘acf_exports’ directory of this plugin. 
ACF Pro allows you to import that json file if for some reason you’re having trouble getting the fields to load.
If you’re a developer there are functions available to you (see: <a href="http://dongaines.com/acf-media-credit/" rel="nofollow ugc">dongaines.com/acf-media-credit</a>)
In the ‘/inc/’ directory the fields have been exported as PHP to work w/ ACF Pro or ACF free
<h3>Functions</h3>
There are a handful of functions available for your use and there is more explanation given to them at <a href="http://dongaines.com/acf-media-credit/" rel="nofollow ugc">dongaines.com/acf-media-credit</a>. The functions available: 
 the_post_thumbnail_media_credit(); //does not require an attachment id 
 the_media_credit_html($attachment_id); //returns 
 the_media_credit($attachment_id); //echos the_media_credit_html(); 
 the_plain_media_credit($attachment_id); //outputs the most basic markup 
 print_r(get_media_credit($attachment_id)); //helpful for debugging
For images with a caption I’m filtering the caption shortcode, please do the same if you need to make a change: <code>add_filter( 'img_caption_shortcode', 'your_function_name', 10, 3 );</code>
Added filters: 
 add_filter(‘acf_media_credit_base_output’, ‘your_function_name’); //your_function_name($image_credit) 
 add_filter(‘acf_media_credit_div_class’, ‘your_function_name’); //your_function_name($media_credit_div_class)

ACF Media Credit

Adds an option to create as many media credit fields as needed for an image.

Advanced Page Template vs ACF Media Credit