136 lines
4 KiB
Plaintext
136 lines
4 KiB
Plaintext
<?php
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/**
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* @file
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* Install, update and uninstall functions for the book module.
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*/
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/**
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* Implements hook_uninstall().
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*/
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function book_uninstall() {
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// Clear book data out of the cache.
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\Drupal::cache('data')->deleteAll();
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}
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/**
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* Implements hook_schema().
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*/
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function book_schema() {
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$schema['book'] = [
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'description' => 'Stores book outline information. Uniquely defines the location of each node in the book outline',
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'fields' => [
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'nid' => [
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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'description' => "The book page's {node}.nid.",
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],
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'bid' => [
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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'description' => "The book ID is the {book}.nid of the top-level page.",
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],
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'pid' => [
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'description' => 'The parent ID (pid) is the id of the node above in the hierarchy, or zero if the node is at the top level in its outline.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'has_children' => [
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'description' => 'Flag indicating whether any nodes have this node as a parent (1 = children exist, 0 = no children).',
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'type' => 'int',
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'not null' => TRUE,
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'default' => 0,
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'size' => 'small',
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],
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'weight' => [
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'description' => 'Weight among book entries in the same book at the same depth.',
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'type' => 'int',
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'not null' => TRUE,
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'default' => 0,
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],
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'depth' => [
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'description' => 'The depth relative to the top level. A link with pid == 0 will have depth == 1.',
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'type' => 'int',
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'not null' => TRUE,
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'default' => 0,
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'size' => 'small',
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],
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'p1' => [
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'description' => 'The first nid in the materialized path. If N = depth, then pN must equal the nid. If depth > 1 then p(N-1) must equal the pid. All pX where X > depth must equal zero. The columns p1 .. p9 are also called the parents.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p2' => [
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'description' => 'The second nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p3' => [
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'description' => 'The third nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p4' => [
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'description' => 'The fourth nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p5' => [
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'description' => 'The fifth nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p6' => [
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'description' => 'The sixth nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p7' => [
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'description' => 'The seventh nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p8' => [
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'description' => 'The eighth nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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'p9' => [
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'description' => 'The ninth nid in the materialized path. See p1.',
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'type' => 'int',
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'unsigned' => TRUE,
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'not null' => TRUE,
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'default' => 0,
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],
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],
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'primary key' => ['nid'],
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'indexes' => [
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'book_parents' => ['bid', 'p1', 'p2', 'p3', 'p4', 'p5', 'p6', 'p7', 'p8', 'p9'],
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],
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];
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return $schema;
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}
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