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<?php |
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|
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/** |
| 4 |
* Abstract Plugin Exporter |
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* |
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* Base class for all plugin-specific exporters. Provides shared orchestration |
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* logic for reading source data, normalizing it, and writing to wp_options |
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* via Snapshot_Store. |
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* |
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* @package ThinkRank\Admin\Importers |
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* @since 2.0.0 |
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*/ |
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|
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declare(strict_types=1); |
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|
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namespace ThinkRank\Admin\Importers; |
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|
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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/** |
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* Abstract Plugin Exporter Class |
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* |
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* @since 2.0.0 |
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*/ |
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abstract class Abstract_Plugin_Exporter { |
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|
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/** |
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* Plugin slug identifier (e.g., 'yoast') |
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* |
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* @var string |
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*/ |
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protected string $plugin_slug; |
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|
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/** |
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* Human-readable plugin name |
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* |
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* @var string |
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*/ |
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protected string $plugin_name; |
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|
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/** |
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* Plugin file path for detection |
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* |
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* @var string |
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*/ |
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protected string $plugin_file; |
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|
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/** |
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* Meta key prefix used by the source plugin |
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* |
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* @var string |
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*/ |
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protected string $meta_key_prefix; |
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|
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/** |
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* WordPress option keys used by the source plugin for settings |
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* |
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* @var array |
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*/ |
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protected array $option_keys = []; |
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|
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/** |
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* Number of records per chunk |
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* |
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* @var int |
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*/ |
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protected int $chunk_size = 100; |
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|
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/** |
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* Raw number of rows the current page's paginated query returned, before any |
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* per-record filtering. Page methods that skip records (e.g. users with no |
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* migratable title/description) set this via the id helpers so export_chunk() |
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* can decide has_more from the fetched-row count, not the emitted count. |
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* Null means the page method didn't report one (1:1 methods) — fall back to |
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* the emitted count. |
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* |
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* @var int|null |
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*/ |
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protected ?int $last_page_row_count = null; |
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|
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/** |
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* Ordered list of data types to export |
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*/ |
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private const EXPORT_TYPES = ['postmeta', 'termmeta', 'usermeta', 'redirections', '404_logs', 'settings']; |
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|
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/** |
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* Detect whether this plugin's data exists in the database |
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* |
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* @return bool True if source data is detected |
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*/ |
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abstract public function detect(): bool; |
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|
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/** |
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* Get available data types with their record counts |
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* |
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* @return array Associative array of type => count |
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*/ |
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abstract public function get_available_types(): array; |
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|
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/** |
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* Export a page of post meta data |
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* |
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* @param int $page Page number (1-indexed) |
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* @return array Array of normalized records |
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*/ |
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abstract protected function export_postmeta_page(int $page): array; |
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|
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/** |
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* Export a page of term meta data |
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* |
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* @param int $page Page number (1-indexed) |
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* @return array Array of normalized records |
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*/ |
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abstract protected function export_termmeta_page(int $page): array; |
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|
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/** |
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* Export a page of user meta data |
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* |
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* @param int $page Page number (1-indexed) |
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* @return array Array of normalized records |
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*/ |
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abstract protected function export_usermeta_page(int $page): array; |
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|
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/** |
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* Export global settings |
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* |
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* @return array Array with single settings record |
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*/ |
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abstract protected function export_settings(): array; |
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|
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/** |
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* Export a page of redirections |
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* |
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* @param int $page Page number (1-indexed) |
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* @return array Array of normalized records |
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*/ |
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abstract protected function export_redirections_page(int $page): array; |
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|
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/** |
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* Export a page of logged 404 hits. |
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* |
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* Concrete, not abstract: only source plugins that ship a 404 monitor have |
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* anything to hand over, so the default is "nothing to export" and the |
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* exporters that do (Rank Math) override it. |
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* |
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* @param int $page Page number (1-indexed) |
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* @return array Array of normalized records |
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*/ |
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protected function export_404_logs_page(int $page): array { |
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return []; |
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} |
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|
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/** |
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* Capture the source plugin's Role Manager assignments: role slug => the |
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* capabilities that role holds whose name starts with $prefix. |
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* |
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* Shared by every exporter because role capabilities live on the roles |
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* themselves (`wp_user_roles`), not in any of the plugin's own options — so |
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* an exporter's raw option capture never covers them, whichever plugin it is. |
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* |
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* The administrator is skipped: ThinkRank's Capability_Manager never |
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* modifies it (it always passes via `manage_options`), so carrying its caps |
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* over would be meaningless. |
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* |
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* @param string $prefix Source capability prefix, e.g. 'rank_math_' or 'wpseo_' |
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* @return array<string,string[]> Role slug => granted capabilities |
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*/ |
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protected function extract_role_capabilities(string $prefix): array { |
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if (!function_exists('wp_roles') || $prefix === '') { |
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return []; |
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} |
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|
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$captured = []; |
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foreach (wp_roles()->roles as $slug => $role) { |
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if ($slug === 'administrator' || empty($role['capabilities'])) { |
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continue; |
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} |
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|
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$caps = []; |
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foreach ($role['capabilities'] as $cap => $granted) { |
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// Roles store revoked caps as `false`; only carry over grants. |
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if ($granted && strpos((string) $cap, $prefix) === 0) { |
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$caps[] = (string) $cap; |
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} |
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} |
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|
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if (!empty($caps)) { |
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sort($caps); |
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$captured[(string) $slug] = $caps; |
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} |
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} |
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|
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return $captured; |
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} |
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|
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/** |
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* Convert plugin-specific template variables to literal values |
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* |
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* Accepts mixed because the input is another plugin's stored data, over |
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* which we have no schema guarantees. Rank Math in particular can hold |
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* booleans inside its options arrays where a template string is expected, |
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* and the `?? ''` at the call sites only guards against a MISSING key — |
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* a present-but-boolean value sailed straight into a string-typed |
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* parameter and fataled the whole migration at the snapshot step. |
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* Implementations MUST start with stringify_template_value(). |
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* |
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* @param mixed $value Value potentially containing template variables |
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* @param int|null $post_id Post ID for context-specific variables |
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* @return string Converted string |
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*/ |
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abstract protected function convert_template_variables(mixed $value, ?int $post_id = null): string; |
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|
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/** |
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* Coerce a foreign settings/meta value into a template string. |
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* |
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* Strings pass through; ints and floats are kept as their string form (a |
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* purely numeric title is odd but meaningful); everything else — booleans, |
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* arrays, objects, null — has no sensible reading as a template, so it |
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* becomes '', which downstream already treats as "not set" and replaces |
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* with defaults. Dropping garbage beats failing the migration over it. |
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* |
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* @param mixed $value Raw value from the source plugin's storage. |
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* @return string Usable template string, possibly ''. |
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*/ |
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final protected function stringify_template_value(mixed $value): string { |
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if (is_string($value)) { |
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return $value; |
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} |
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|
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if (is_int($value) || is_float($value)) { |
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return (string) $value; |
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} |
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|
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return ''; |
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} |
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|
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/** |
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* Export a chunk of data and write to snapshot |
| 241 |
* |
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* This is the main orchestration method. It calls the appropriate |
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* export_*_page() method, writes the chunk via Snapshot_Store, and |
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* updates the manifest. |
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* |
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* @param string $type Data type to export |
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* @param int $page Page number (1-indexed) |
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* @return array Result with status, has_more, page, total, exported |
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*/ |
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public function export_chunk(string $type, int $page): array { |
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// Reset before the page method runs; it (or its id helper) records the |
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// raw fetched-row count here. |
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$this->last_page_row_count = null; |
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|
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$records = match ($type) { |
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'postmeta' => $this->export_postmeta_page($page), |
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'termmeta' => $this->export_termmeta_page($page), |
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'usermeta' => $this->export_usermeta_page($page), |
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'settings' => $this->export_settings(), |
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'redirections' => $this->export_redirections_page($page), |
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'404_logs' => $this->export_404_logs_page($page), |
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default => [], |
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}; |
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|
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$exported_count = count($records); |
| 266 |
|
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// Write chunk to snapshot store |
| 268 |
if ($exported_count > 0) { |
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Snapshot_Store::write_chunk($this->plugin_slug, $type, $page, $records); |
| 270 |
} |
| 271 |
|
| 272 |
// Determine if there are more pages from the number of rows the paginated |
| 273 |
// query returned, NOT the emitted count. A page method may fetch a full |
| 274 |
// chunk_size of rows but emit fewer after filtering (e.g. users without a |
| 275 |
// migratable title/description); keying has_more off the emitted count |
| 276 |
// would halt pagination early and silently skip later pages. Fall back to |
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// the emitted count for 1:1 page methods that don't report a row count. |
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$fetched_count = $this->last_page_row_count ?? $exported_count; |
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$has_more = $fetched_count >= $this->chunk_size && $type !== 'settings'; |
| 280 |
|
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// Get total count for this type |
| 282 |
$types = $this->get_available_types(); |
| 283 |
$total = $types[$type] ?? 0; |
| 284 |
|
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// Update manifest |
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$this->update_manifest($type, $page, $exported_count, $has_more, $total); |
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|
| 288 |
return [ |
| 289 |
'status' => $has_more ? 'processing' : 'complete', |
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'message' => sprintf( |
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'Exported %d %s records (page %d)', |
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$exported_count, |
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$type, |
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$page |
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), |
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'has_more' => $has_more, |
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'page' => $page, |
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'total' => $total, |
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'exported' => $exported_count, |
| 300 |
]; |
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} |
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|
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/** |
| 304 |
* Update the snapshot manifest after writing a chunk |
| 305 |
* |
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* @param string $type Data type |
| 307 |
* @param int $page Current page |
| 308 |
* @param int $count Records in this chunk |
| 309 |
* @param bool $has_more Whether more pages remain |
| 310 |
* @param int $total Total records for this type |
| 311 |
* @return void |
| 312 |
*/ |
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private function update_manifest(string $type, int $page, int $count, bool $has_more, int $total): void { |
| 314 |
$manifest = Snapshot_Store::get_manifest($this->plugin_slug) ?? [ |
| 315 |
'plugin' => $this->plugin_slug, |
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'plugin_name' => $this->plugin_name, |
| 317 |
'exported_at' => gmdate('c'), |
| 318 |
'version' => '1.0', |
| 319 |
'types' => [], |
| 320 |
'status' => 'exporting', |
| 321 |
'last_migrated' => null, |
| 322 |
'migration_version' => null, |
| 323 |
]; |
| 324 |
|
| 325 |
// Update type info |
| 326 |
if (!isset($manifest['types'][$type])) { |
| 327 |
$manifest['types'][$type] = [ |
| 328 |
'total_records' => $total, |
| 329 |
'total_chunks' => 0, |
| 330 |
]; |
| 331 |
} |
| 332 |
|
| 333 |
$manifest['types'][$type]['total_chunks'] = $page; |
| 334 |
$manifest['types'][$type]['total_records'] = $total; |
| 335 |
$manifest['status'] = 'exporting'; |
| 336 |
$manifest['exported_at'] = gmdate('c'); |
| 337 |
|
| 338 |
Snapshot_Store::write_manifest($this->plugin_slug, $manifest); |
| 339 |
} |
| 340 |
|
| 341 |
/** |
| 342 |
* Mark the export as complete in the manifest |
| 343 |
* |
| 344 |
* Called by the controller after all types have been exported. |
| 345 |
* |
| 346 |
* @return void |
| 347 |
*/ |
| 348 |
public function finalize_export(): void { |
| 349 |
$manifest = Snapshot_Store::get_manifest($this->plugin_slug); |
| 350 |
if ($manifest) { |
| 351 |
$manifest['status'] = 'complete'; |
| 352 |
$manifest['exported_at'] = gmdate('c'); |
| 353 |
Snapshot_Store::write_manifest($this->plugin_slug, $manifest); |
| 354 |
} |
| 355 |
} |
| 356 |
|
| 357 |
/** |
| 358 |
* Normalize robots directives from any plugin format to standard 0/1 values |
| 359 |
* |
| 360 |
* Handles: |
| 361 |
* - Integer/string 1/0 (Yoast noindex/nofollow) |
| 362 |
* - Serialized array containing 'noindex'/'nofollow' strings (Rank Math) |
| 363 |
* - Boolean true/false (AIOSEO) |
| 364 |
* - String 'yes' for noindex (SEOPress inverted logic — caller must handle inversion) |
| 365 |
* |
| 366 |
* @param mixed $noindex_value Raw noindex value from source |
| 367 |
* @param mixed $nofollow_value Raw nofollow value from source |
| 368 |
* @return array ['noindex' => 0|1, 'nofollow' => 0|1] |
| 369 |
*/ |
| 370 |
protected function normalize_robots($noindex_value, $nofollow_value = null): array { |
| 371 |
$result = ['noindex' => 0, 'nofollow' => 0]; |
| 372 |
|
| 373 |
// Handle serialized array (Rank Math stores robots as serialized array) |
| 374 |
if (is_string($noindex_value) && is_serialized($noindex_value)) { |
| 375 |
$noindex_value = Safe_Unserializer::unserialize($noindex_value); |
| 376 |
} |
| 377 |
|
| 378 |
if (is_array($noindex_value)) { |
| 379 |
// Rank Math format: serialized array with 'noindex', 'nofollow' as values |
| 380 |
$result['noindex'] = in_array('noindex', $noindex_value, true) ? 1 : 0; |
| 381 |
$result['nofollow'] = in_array('nofollow', $noindex_value, true) ? 1 : 0; |
| 382 |
return $result; |
| 383 |
} |
| 384 |
|
| 385 |
// Handle individual values |
| 386 |
$result['noindex'] = $this->normalize_bool_value($noindex_value); |
| 387 |
|
| 388 |
if ($nofollow_value !== null) { |
| 389 |
$result['nofollow'] = $this->normalize_bool_value($nofollow_value); |
| 390 |
} |
| 391 |
|
| 392 |
return $result; |
| 393 |
} |
| 394 |
|
| 395 |
/** |
| 396 |
* Normalize a value to 0 or 1 |
| 397 |
* |
| 398 |
* @param mixed $value Value to normalize |
| 399 |
* @return int 0 or 1 |
| 400 |
*/ |
| 401 |
private function normalize_bool_value($value): int { |
| 402 |
if ($value === null || $value === '' || $value === false) { |
| 403 |
return 0; |
| 404 |
} |
| 405 |
|
| 406 |
if (is_bool($value)) { |
| 407 |
return $value ? 1 : 0; |
| 408 |
} |
| 409 |
|
| 410 |
return (int) $value ? 1 : 0; |
| 411 |
} |
| 412 |
|
| 413 |
/** |
| 414 |
* Get paginated post IDs that have meta keys with the plugin's prefix |
| 415 |
* |
| 416 |
* @param int $page Page number (1-indexed) |
| 417 |
* @return array Array of post IDs |
| 418 |
*/ |
| 419 |
protected function get_post_ids_with_meta(int $page): array { |
| 420 |
global $wpdb; |
| 421 |
|
| 422 |
$offset = ($page - 1) * $this->chunk_size; |
| 423 |
$post_types = $this->get_exportable_post_types(); |
| 424 |
|
| 425 |
// Defensive: a site with no viewable post types has nothing to export. |
| 426 |
if (empty($post_types)) { |
| 427 |
return []; |
| 428 |
} |
| 429 |
|
| 430 |
$placeholders = implode(', ', array_fill(0, count($post_types), '%s')); |
| 431 |
|
| 432 |
// Restrict to publicly-viewable post types so WordPress-internal objects |
| 433 |
// (oembed_cache, revisions, nav menu items, block/template CPTs, …) never |
| 434 |
// enter the snapshot — SEO meta left on them is noise. Filtering in the |
| 435 |
// query (rather than per-record) keeps the chunk-size based has_more |
| 436 |
// pagination in export_chunk() accurate. |
| 437 |
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQLPlaceholders.ReplacementsWrongNumber -- table name is $wpdb->prefix plus a literal, and every value is passed as a placeholder replacement. |
| 438 |
$sql = $wpdb->prepare( |
| 439 |
"SELECT DISTINCT pm.post_id |
| 440 |
FROM {$wpdb->postmeta} pm |
| 441 |
INNER JOIN {$wpdb->posts} p ON p.ID = pm.post_id |
| 442 |
WHERE pm.meta_key LIKE %s |
| 443 |
AND p.post_type IN ({$placeholders}) |
| 444 |
ORDER BY pm.post_id ASC |
| 445 |
LIMIT %d OFFSET %d", |
| 446 |
array_merge( |
| 447 |
[$wpdb->esc_like($this->meta_key_prefix) . '%'], |
| 448 |
$post_types, |
| 449 |
[$this->chunk_size, $offset] |
| 450 |
) |
| 451 |
); |
| 452 |
// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared |
| 453 |
|
| 454 |
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- table name is $wpdb->prefix plus a literal, and every value is passed as a placeholder replacement. |
| 455 |
$ids = $wpdb->get_col($sql); |
| 456 |
$this->last_page_row_count = count($ids); |
| 457 |
|
| 458 |
return $ids; |
| 459 |
} |
| 460 |
|
| 461 |
/** |
| 462 |
* Publicly-viewable post types whose meta is worth exporting. |
| 463 |
* |
| 464 |
* Excludes WordPress-internal types (oembed_cache, revision, nav_menu_item, |
| 465 |
* wp_* block/template CPTs) that are never served to visitors and therefore |
| 466 |
* carry no meaningful SEO data. |
| 467 |
* |
| 468 |
* @return string[] Post type slugs |
| 469 |
*/ |
| 470 |
protected function get_exportable_post_types(): array { |
| 471 |
return array_values( |
| 472 |
array_filter(get_post_types([], 'names'), 'is_post_type_viewable') |
| 473 |
); |
| 474 |
} |
| 475 |
|
| 476 |
/** |
| 477 |
* Get paginated term IDs that have meta keys with the plugin's prefix |
| 478 |
* |
| 479 |
* @param int $page Page number (1-indexed) |
| 480 |
* @return array Array of term IDs |
| 481 |
*/ |
| 482 |
protected function get_term_ids_with_meta(int $page): array { |
| 483 |
global $wpdb; |
| 484 |
|
| 485 |
$offset = ($page - 1) * $this->chunk_size; |
| 486 |
|
| 487 |
$ids = $wpdb->get_col( |
| 488 |
$wpdb->prepare( |
| 489 |
"SELECT DISTINCT term_id FROM {$wpdb->termmeta} WHERE meta_key LIKE %s ORDER BY term_id ASC LIMIT %d OFFSET %d", |
| 490 |
$wpdb->esc_like($this->meta_key_prefix) . '%', |
| 491 |
$this->chunk_size, |
| 492 |
$offset |
| 493 |
) |
| 494 |
); |
| 495 |
$this->last_page_row_count = count($ids); |
| 496 |
|
| 497 |
return $ids; |
| 498 |
} |
| 499 |
|
| 500 |
/** |
| 501 |
* Get paginated user IDs that have meta keys with the plugin's prefix |
| 502 |
* |
| 503 |
* @param int $page Page number (1-indexed) |
| 504 |
* @return array Array of user IDs |
| 505 |
*/ |
| 506 |
protected function get_user_ids_with_meta(int $page): array { |
| 507 |
global $wpdb; |
| 508 |
|
| 509 |
$offset = ($page - 1) * $this->chunk_size; |
| 510 |
|
| 511 |
$ids = $wpdb->get_col( |
| 512 |
$wpdb->prepare( |
| 513 |
"SELECT DISTINCT user_id FROM {$wpdb->usermeta} WHERE meta_key LIKE %s ORDER BY user_id ASC LIMIT %d OFFSET %d", |
| 514 |
$wpdb->esc_like($this->meta_key_prefix) . '%', |
| 515 |
$this->chunk_size, |
| 516 |
$offset |
| 517 |
) |
| 518 |
); |
| 519 |
$this->last_page_row_count = count($ids); |
| 520 |
|
| 521 |
return $ids; |
| 522 |
} |
| 523 |
|
| 524 |
/** |
| 525 |
* Get all meta values for a user with the plugin's prefix |
| 526 |
* |
| 527 |
* @param int $user_id User ID |
| 528 |
* @return array Associative array of meta_key => meta_value |
| 529 |
*/ |
| 530 |
protected function get_all_plugin_user_meta(int $user_id): array { |
| 531 |
global $wpdb; |
| 532 |
|
| 533 |
$results = $wpdb->get_results( |
| 534 |
$wpdb->prepare( |
| 535 |
"SELECT meta_key, meta_value FROM {$wpdb->usermeta} WHERE user_id = %d AND meta_key LIKE %s", |
| 536 |
$user_id, |
| 537 |
$wpdb->esc_like($this->meta_key_prefix) . '%' |
| 538 |
), |
| 539 |
ARRAY_A |
| 540 |
); |
| 541 |
|
| 542 |
$meta = []; |
| 543 |
foreach ($results as $row) { |
| 544 |
$meta[$row['meta_key']] = $row['meta_value']; |
| 545 |
} |
| 546 |
|
| 547 |
return $meta; |
| 548 |
} |
| 549 |
|
| 550 |
/** |
| 551 |
* Get all meta values for a post with the plugin's prefix |
| 552 |
* |
| 553 |
* @param int $post_id Post ID |
| 554 |
* @return array Associative array of meta_key => meta_value |
| 555 |
*/ |
| 556 |
protected function get_all_plugin_meta(int $post_id): array { |
| 557 |
global $wpdb; |
| 558 |
|
| 559 |
$results = $wpdb->get_results( |
| 560 |
$wpdb->prepare( |
| 561 |
"SELECT meta_key, meta_value FROM {$wpdb->postmeta} WHERE post_id = %d AND meta_key LIKE %s", |
| 562 |
$post_id, |
| 563 |
$wpdb->esc_like($this->meta_key_prefix) . '%' |
| 564 |
), |
| 565 |
ARRAY_A |
| 566 |
); |
| 567 |
|
| 568 |
$meta = []; |
| 569 |
foreach ($results as $row) { |
| 570 |
$meta[$row['meta_key']] = $row['meta_value']; |
| 571 |
} |
| 572 |
|
| 573 |
return $meta; |
| 574 |
} |
| 575 |
|
| 576 |
/** |
| 577 |
* Get all meta values for a term with the plugin's prefix |
| 578 |
* |
| 579 |
* @param int $term_id Term ID |
| 580 |
* @return array Associative array of meta_key => meta_value |
| 581 |
*/ |
| 582 |
protected function get_all_plugin_term_meta(int $term_id): array { |
| 583 |
global $wpdb; |
| 584 |
|
| 585 |
$results = $wpdb->get_results( |
| 586 |
$wpdb->prepare( |
| 587 |
"SELECT meta_key, meta_value FROM {$wpdb->termmeta} WHERE term_id = %d AND meta_key LIKE %s", |
| 588 |
$term_id, |
| 589 |
$wpdb->esc_like($this->meta_key_prefix) . '%' |
| 590 |
), |
| 591 |
ARRAY_A |
| 592 |
); |
| 593 |
|
| 594 |
$meta = []; |
| 595 |
foreach ($results as $row) { |
| 596 |
$meta[$row['meta_key']] = $row['meta_value']; |
| 597 |
} |
| 598 |
|
| 599 |
return $meta; |
| 600 |
} |
| 601 |
|
| 602 |
/** |
| 603 |
* Get the plugin slug |
| 604 |
* |
| 605 |
* @return string |
| 606 |
*/ |
| 607 |
public function get_plugin_slug(): string { |
| 608 |
return $this->plugin_slug; |
| 609 |
} |
| 610 |
|
| 611 |
/** |
| 612 |
* Get the plugin name |
| 613 |
* |
| 614 |
* @return string |
| 615 |
*/ |
| 616 |
public function get_plugin_name(): string { |
| 617 |
return $this->plugin_name; |
| 618 |
} |
| 619 |
} |
| 620 |
|
