Reverted last commit

ac-COLUMN_NAME.php

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+<?php
+
+/*
+Plugin Name: Admin Columns - COLUMN_LABEL
+Plugin URI: PLUGIN_URL
+Description: DESCRIPTION
+Version: 1.0
+Author: AUTHOR_NAME
+Author URI: AUTHOR_URL
+License: GPLv2 or later
+License URI: http://www.gnu.org/licenses/gpl-2.0.html
+*/
+
+// 1. Set text domain
+// Reference: https://codex.wordpress.org/Function_Reference/load_plugin_textdomain
+load_plugin_textdomain( 'ac-COLUMN_NAME', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
+
+// 2. Set the type of column.
+// Use the type: 'post', 'user', 'comment', 'media' or 'taxonomy'.
+add_filter( 'cac/columns/custom/type=post', 'cac_register_column_COLUMN_NAME' );
+
+// 3. Register the column.
+function cac_register_column_COLUMN_NAME( $columns ) {
+
+    // Class name and absolute filepath of the new column
+    $columns['CPAC_Column_COLUMN_NAME'] = plugin_dir_path( __FILE__ ) . 'ac-column-COLUMN_NAME.php';
+
+    return $columns;
+}

ac-column-COLUMN_NAME.php

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+<?php
+
+class CPAC_Column_COLUMN_NAME extends CPAC_Column {
+
+    /**
+     * This function will setup the column data
+     *
+     */
+    public function init() {
+
+        // do not delete
+    	parent::init();
+
+        // Identifier, pick an unique name. Single word, no spaces. Underscores allowed.
+        $this->properties['type'] = 'column-COLUMN_NAME';
+
+        // Default column label.
+        $this->properties['label'] = __( 'COLUMN_LABEL', 'ac-COLUMN_NAME' );
+
+        // (optional) You can make it support sorting with the pro add-on enabled. Sorting will be done by it's raw value.
+        $this->properties['is_sortable'] = true;
+
+        // (optional) Enable/Disable inline editing support for this column.
+        $this->properties['is_editable'] = false;
+    }
+
+    /**
+     * Returns the display value for the column.
+     *
+     * @param int $id ID
+     * @return string Value
+     */
+    public function get_value( $post_id ) {
+
+        // get raw value
+        $value = $this->get_raw_value( $post_id );
+
+        // optionally you can change the display of the value. In this example we added a post link.
+        $value = '<a href="' . get_permalink( $post_id ) . '">' . $value . '</a>';
+
+        return $value;
+    }
+
+    /**
+     * Get the raw, underlying value for the column
+     * Not suitable for direct display, use get_value() for that
+     * This value will be used by 'sorting', 'inline-edit' and get_value().
+     *
+     * @param int $id ID
+     * @return mixed Value
+     */
+    public function get_raw_value( $post_id ) {
+
+        // put all the column logic here to retrieve the value you need
+        // For example: $value = get_post_meta( $post_id, '_my_custom_field_example', true );
+
+        $value = 'something';
+
+        return $value;
+    }
+
+    /**
+     * (Optional) Apply conditionals. You can remove this function is you do not use it!
+     *
+     * This determines whether the column should be available. If you want to disable this column
+     * for a particular posttype you can set this to false.
+     *
+     * @return bool True/False Default should be 'true'.
+     */
+    public function apply_conditional() {
+
+        // Example: if the posttype does not support thumbnails then return false
+        // if ( ! post_type_supports( $this->get_post_type(), 'thumbnail' ) ) {
+        //    return false;
+        // }
+
+        return true;
+    }
+
+    /**
+     * (Optional) Inline editing settings. You can remove this function is you do not use it!
+     *
+     * @return array Editable settings
+     */
+    public function get_editable_settings() {
+
+        // available types: text, textarea, media, float, togglable, select, select2_dropdown and select2_tags
+        $settings = array(
+            'type' => 'text'
+        );
+
+        // (Optional) Only applies to type: togglable, select, select2_dropdown and select2_tags
+        // $settings['options'] = array( 'value_1', 'value_2', 'etc.' );
+
+        // (Optional) If a selector is provided, editable will be delegated to the specified targets
+        // $settings['js']['selector'] = 'a.my-class';
+
+        return $settings;
+    }
+
+    /**
+     * (Optional) Saves the value after using inline-edit. You can remove this function is you do not use it!
+     *
+     * @param int $id Object ID
+     * @param mixed $value Value to be saved
+     */
+    public function save( $id, $value ) {
+
+        // Store the value that has been entered with inline-edit
+        // For example: update_post_meta( $id, '_my_custom_field_example', $value );
+    }
+
+    /**
+     * (Optional) Create extra settings for you column. These are visible when editing a column. You can remove this function is you do not use it!
+     *
+     * Write your own settings or use any of the standard avaiable settings.
+     */
+    public function display_settings() {
+
+        // You can write your own input fields here, or use the examples below...
+
+        // The following settings are available out-of-the-box:
+
+        // Display an image preview size settings screen
+        // $this->display_field_preview_size();
+
+        // Display an excerpt length input field
+        // $this->display_field_excerpt_length();
+
+        // Display a date format settings input field
+        // $this->display_field_date_format();
+
+        // Display before and after input fields
+        // $this->display_field_before_after();
+
+        // Displays a dropdown menu with user display formats
+        // $this->display_field_user_format();
+
+        // Displays a text field
+        // $this->display_field_text( $option_name, $label, $description );
+
+        // Displays a select field
+        // $this->display_field_select( $option_name, $label, $options, $description );
+    }
+
+    /*
+     * (Optional) Enqueue CSS + JavaScript on the admin listings screen. You can remove this function is you do not use it!
+     *
+     * This action is called in the admin_head action on the listings screen where your column values are displayed.
+     * Use this action to add CSS + JavaScript
+     *
+     * @since 3.3.4
+     */
+    public function scripts() {
+
+        // wp_register_script( 'ac-COLUMN_NAME', plugin_dir_url( __FILE__ ) . "js/column.js" );
+        // wp_enqueue_script( 'ac-COLUMN_NAME' );
+
+        // wp_register_style( 'ac-COLUMN_NAME', plugin_dir_url( __FILE__ ) . "css/column.css" );
+        // wp_enqueue_style( 'ac-COLUMN_NAME' );
+    }
+}