not_found()

Abort the current view and render a friendly 404 page.

Usage

Source

not_found(four04template_file="errors/404.pt")

Call this inside a view decorated with @template, e.g. when a database lookup comes up empty. The decorator catches the raised exception and renders the given 404 template with an empty model, text/html content type, and status code 404 (the view’s own content_type and status_code do not apply to the 404 path).

Parameters

four04template_file: str = "errors/404.pt"

The template to render for the 404 response. Defaults to errors/404.pt; an empty or blank value falls back to that same default.

Raises

FlaskChameleonNotFoundException

Always; the @template decorator turns it into the rendered 404 response.

Examples

@app.get('/catalog/item/<int:item_id>')
@chameleon_flask.template('catalog/item.pt')
def item(item_id: int):
    item = service.get_item_by_id(item_id)
    if not item:
        chameleon_flask.not_found()

    return {'item': item}