Data Storage and Migration

Options

Option	Contents	Autoloaded
wcdp_pro_admin_general_option	Button position, four button colors, allowed file_format list, allowed wcdp_category list.	No
wcdp_pro_ftype_cat_flag	One-time flag marking that existing installs were pre-filled with default formats and categories.	No
wcdp_pro_urlkey_migrated	Flag marking the legacy meta migration complete.	No
wcdp_pro_urlkey_migrate_offset	Paging offset used while the migration runs.	No
edd_wbcom_wcdp_pro_license_key	Stored EDD license key.	Default
edd_wbcom_wcdp_pro_license_status	License status (valid, invalid, expired, and so on).	Default

wcdp_pro_admin_general_option shape

array(
    'preview_button_display_position' => 'woocommerce_before_add_to_cart_button', // or ..._after_...
    'preview_button_text_color'       => '#ffffff',
    'preview_button_hover_text_color' => '#ffffff',
    'preview_button_bg_color'         => '',
    'preview_button_hover_bg_color'   => '',
    'file_format'                     => array( 'pdf', 'doc', 'docx', 'xls', 'xlsx', 'ppt', 'pptx', 'txt', 'google_sheets', 'google_docs', 'onedrive', 'dropbox' ),
    'wcdp_category'                   => array( /* product_cat term IDs */ ),
);

Product meta

Document data is stored in the wcdp_documents product meta, which is owned by the free base plugin. The base reader and writer use the wcdp_file_urls sub-key for URLs. Pro reads and writes through the base plugin’s WCDP_Documents API rather than touching the meta directly, so there is one storage rule for both plugins.

Legacy meta migration

Before the current architecture, Pro stored URLs under the legacy wcdp_pro_file_urls sub-key. A one-time migration rewrites each product through the base writer so it uses the canonical wcdp_file_urls key and drops the legacy one.

The migration:

• Runs on admin_init and only when the base WCDP_Documents class is present.
• Is guarded by the wcdp_pro_urlkey_migrated option flag, so it runs once regardless of version changes.
• Is batched (50 products per admin request) so a large catalog does not time out.
• Is idempotent: re-saving an already-canonical product writes the same data, so a re-run is a no-op.

Uninstall

Uninstalling Pro removes only its own options: wcdp_pro_admin_general_option, wcdp_pro_ftype_cat_flag, wcdp_pro_urlkey_migrated, wcdp_pro_urlkey_migrate_offset, and the two EDD license options.

It deliberately does not delete the wcdp_documents product meta. That store belongs to the free base plugin, which removes it in its own uninstall. Removing only Pro leaves every product’s documents intact for the free plugin.