Custom meta field for custom post type in wordpress
In term of customization of WordPress theme development, some your theme need some extra field and meta box field for your custom post type.where you want to add some value that can be useful and important to your theme development.
Now its easy and short example that explain how add some extra field to POST, PAGE, CUSTOM POST TYPE page screen.
i am explaining step by step the whole code,
First of all go to your functions.php in your theme location. add the function and hooks into your functions.php file.
Register your metabox field fisrt.
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add_action( 'admin_init', 'custom_meta_field_fnc' ); function custom_meta_field_fnc() { /* add_meta_box( $id, $title, $callback, $screen, $context,$priority, $callback_args ); */ add_meta_box( '_custom_meta_414', 'Custom Meta Title', 'display_my_new_field','post', 'normal', 'high' ); } |
Now your meta box is registered, its time to add your html with input field that will appear in your post, page or custom post type page.
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function display_my_new_field( $post ) { /*Retrive custom meta field value */ $fieldValue=esc_html(get_post_meta( $post->ID, '_custom_meta', true )); ?> <h4>Extra custom meta field</h4> <table width="100%"> <tr> <td style="width: 25%">Your Field Lable Name</td> <td><input type="text" name="_custom_meta" id="_custom_meta" value="<?php echo $fieldValue; ?>" /> </td> </tr> </table> <?php } |
Third step is to save your metabox value in database.
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add_action( 'save_post', 'add_samplepost_fields', 10, 2 ); function add_samplepost_fields( $post_id, $post ) { /* Now saving custom meta field value */ if ( $post->post_type == 'post' ) { if(isset($_POST["_custom_meta"])) { update_post_meta($post_id,'_custom_meta',$_POST["_custom_meta"]); } } } |
Now every thing is ready to use. The whole code will be , you can copy and paste and edit the code as per your requirement.
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/* ======================== add field ============================================================================*/ add_action( 'admin_init', 'custom_meta_field_fnc' ); function custom_meta_field_fnc() { /* add_meta_box( $id, $title, $callback, $screen= post,page or custom post type , $context,$priority, $callback_args ); */ /* add_meta_box( '_custom_meta_414', 'Custom Meta Title', 'display_my_new_field','post,page or custom post type', 'normal', 'high' );*/ add_meta_box( '_custom_meta_414', 'Custom Meta Title', 'display_my_new_field','post', 'normal', 'high' ); } function display_my_new_field( $post ) { /*Retrive custom meta field value */ $fieldValue=esc_html(get_post_meta( $post->ID, '_custom_meta', true )); ?> <h4>Extra custom meta field</h4> <table width="100%"> <tr> <td style="width: 25%">Your Field Lable Name</td> <td><input type="text" name="_custom_meta" id="_custom_meta" value="<?php echo $fieldValue; ?>" /> </td> </tr> </table> <?php } add_action( 'save_post', 'add_samplepost_fields', 10, 2 ); function add_samplepost_fields( $post_id, $post ) { /* Now saving custom meta field value */ /*( $post->post_type == 'post or page or your post type' ) */ if ( $post->post_type == 'post' ) { if(isset($_POST["_custom_meta"])) { update_post_meta($post_id,'_custom_meta',$_POST["_custom_meta"]); } } } /*=================================================== Add custom meta field in custom post type ===================*/ |
This is whole code. I hope its helpful to you.
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