Add a product to the cart or update its quantity.

Override get_context to prefetch archive author relationships. Prevents N+1 queries when template loops through article.archive_authors.all

Override save to send email notification when order is marked as paid. Sends notification only once (when paid=True and notification

Paginate items and return a page of items.

Create and save a User with the given email and password.

Helper to index a page and search for it. The database search backend works synchronously, so the page is immediately searchable afte

Update publication statistics for a given contact.

Check if a page's model should be excluded from breadcrumbs. Returns True if the page should be excluded, False otherwise.

Bulk-annotate a list of MagazineArticle instances with their parent MagazineIssue, setting ``_parent_page`` on each. Prefer this over

Filter querystring facets to only include those that are valid.

Get the default Wagtail site, falling back to the first site if needed. This function provides a consistent way to retrieve a site for conte

Send email notification when a bookstore order is successfully paid. Args: order: The Order instance that was paid Returns:

Return only the ancestors that appear as visible breadcrumb items. Filters out root pages and pages excluded by exclude_from_breadcrumbs, ret

Cache LocaleManager.get_for_language for the duration of each request. Problem ------- With WAGTAIL_I18N_ENABLED=True, Wagtai

Add CSS class to form field This template filter adds CSS classes to form fields, making it easy to apply tailwind/daisyUI styling to Django

Create a querystring from facets.

Helper to get library items filtered by facet with consistent ordering. Args: facet_instance: The facet page instance (Audience, Genre, M

Return ancestors as their specific page types, fetched in bulk. Replaces per-item `ancestor.specific` calls in templates (which issue one que

Check the status of a PayPal subscription.

Create a PayPal order.

Get an auth token from PayPal.

Override get_context to prefetch author and topic relationships. Prevents N+1 queries when template loops through authors and topics

Construct a URL with anchor if exists, otherwise use URL.

Return the model name of the given object.

Generate a unique ID for the submenu based on the title. This is used for accessibility purposes to link the summary and menu elements.

Create OrderItems from Cart items.

Create and save a superuser with the given email and password.

Calculate shipping costs for books in a cart/order. The shipping rules are flat rate for each book, with discounts offered for ordering more

Return the total cost for this order item.

Optimize related fetches for listings.

Construct a URL with anchor if exists, otherwise use URL.

Remove a product from the cart.

Add Sentry transaction context for debugging/monitoring. Note: optimization_query_count is only meaningful in development/staging (DEBUG=True

Build list of Prefetch objects for all related content. Returns: List of Prefetch objects for optimized queryset loading.

Bulk-fetch and cache parent pages for articles. This prevents N+1 queries when templates call {% pageurl issue %}.

TODO: Prefetch related articles for performance.

Return a list of all the pages tagged with the given tag. The combined list is sorted alphabetically by title.

Return the sum of all order items' costs, plus shipping cost.

Return the sum of all order items' costs.

Initialize the cart.

Get cart products from the database.

Count all items in the cart.

Return a string representation of the address.