issue_comments: 1499462324

This data as json

html_url	issue_url	id	node_id	user	created_at	updated_at	author_association	body	reactions	issue	performed_via_github_app
https://github.com/simonw/datasette/issues/2054#issuecomment-1499462324	https://api.github.com/repos/simonw/datasette/issues/2054	1499462324	IC_kwDOBm6k_c5ZX_q0	9599	2023-04-06T18:31:56Z	2023-04-06T18:31:56Z	OWNER	The `DataView` class does a LOT of work - mostly involving CSV responses. https://github.com/simonw/datasette/blob/8b9d7fdbd8de7e74414cc29e3005382669a812dc/datasette/views/base.py#L160-L544 It has a `redirect()` method with some complex logic and CORS handling: https://github.com/simonw/datasette/blob/8b9d7fdbd8de7e74414cc29e3005382669a812dc/datasette/views/base.py#L163-L172 It uses this method a lot, which has to be over-ridden in the `TableView` and `RowView` and `QueryView` subclasses: https://github.com/simonw/datasette/blob/8b9d7fdbd8de7e74414cc29e3005382669a812dc/datasette/views/base.py#L174-L175 This method: https://github.com/simonw/datasette/blob/8b9d7fdbd8de7e74414cc29e3005382669a812dc/datasette/views/base.py#L180 Is the bulk of the complexity, because it knows how to both turn a list of SQLite rows into a CSV file but also knows how to call `.data()` repeatedly with different pagination arguments in order to stream CSV back for a large table. The `async def get()` method for GET requests is also very complicated. It mainly handles format stuff - knowing how to render HTML v.s. JSON v.s. CSV v.s. other formats specified using this plugin hook: https://docs.datasette.io/en/1.0a2/plugin_hooks.html#register-output-renderer-datasette Plus it catches interrupted queries and returns a special error page for those (and other error messages too): https://github.com/simonw/datasette/blob/8b9d7fdbd8de7e74414cc29e3005382669a812dc/datasette/views/base.py#L381-L408 It adds the time taken to execute the queries: https://github.com/simonw/datasette/blob/8b9d7fdbd8de7e74414cc29e3005382669a812dc/datasette/views/base.py#L410-L411	{ "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 }	1657861026