book.views.inc

<?php


/**
 * @file
 * Provide views data for book.module.
 *
 * @ingroup views_module_handlers
 */

/**
 * Implements hook_views_data().
 */
function book_views_data() {
    $data = [];
    $data['book'] = [];
    $data['book']['table'] = [];
    $data['book']['table']['group'] = t('Book');
    $data['book']['table']['join'] = [
        'node_field_data' => [
            'left_field' => 'nid',
            'field' => 'nid',
        ],
    ];
    $data['book']['nid'] = [
        'title' => t('Page'),
        'help' => t('The book page node.'),
        'relationship' => [
            'base' => 'node_field_data',
            'id' => 'standard',
            'label' => t('Book Page'),
        ],
    ];
    $data['book']['bid'] = [
        'title' => t('Top level book'),
        'help' => t('The book the node is in.'),
        'relationship' => [
            'base' => 'node_field_data',
            'id' => 'standard',
            'label' => t('Book'),
        ],
    ];
    $data['book']['pid'] = [
        'title' => t('Parent'),
        'help' => t('The parent book node.'),
        'relationship' => [
            'base' => 'node_field_data',
            'id' => 'standard',
            'label' => t('Book Parent'),
        ],
    ];
    $data['book']['has_children'] = [
        'title' => t('Page has Children'),
        'help' => t('Flag indicating whether this book page has children'),
        'field' => [
            'id' => 'boolean',
        ],
        'sort' => [
            'id' => 'standard',
        ],
        'filter' => [
            'id' => 'boolean',
            'label' => t('Has Children'),
        ],
        'argument' => [
            'id' => 'numeric',
        ],
    ];
    $data['book']['weight'] = [
        'title' => t('Weight'),
        'help' => t('The weight of the book page.'),
        'field' => [
            'id' => 'numeric',
        ],
        'sort' => [
            'id' => 'standard',
        ],
    ];
    $data['book']['depth'] = [
        'title' => t('Depth'),
        'help' => t('The depth of the book page in the hierarchy; top level books have a depth of 1.'),
        'field' => [
            'id' => 'numeric',
        ],
        'sort' => [
            'id' => 'standard',
        ],
        'filter' => [
            'id' => 'numeric',
        ],
        'argument' => [
            'id' => 'standard',
        ],
    ];
    $parents = [
        1 => t('1st parent'),
        2 => t('2nd parent'),
        3 => t('3rd parent'),
        4 => t('4th parent'),
        5 => t('5th parent'),
        6 => t('6th parent'),
        7 => t('7th parent'),
        8 => t('8th parent'),
        9 => t('9th parent'),
    ];
    foreach ($parents as $i => $parent_label) {
        $data['book']["p{$i}"] = [
            'title' => $parent_label,
            'help' => t('The @parent of book node.', [
                '@parent' => $parent_label,
            ]),
            'relationship' => [
                'base' => 'node_field_data',
                'id' => 'standard',
                'label' => t('Book @parent', [
                    '@parent' => $parent_label,
                ]),
            ],
        ];
    }
    return $data;
}