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Basic CSV export, refs #266

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Tables and custom SQL query results can now be exported as CSV.

The easiest way to do this is to use the .csv extension, e.g.

	/test_tables/facet_cities.csv

By default this is served as Content-Type: text/plain so you can see it in
your browser. If you want to download the file (using text/csv and with an
appropriate Content-Disposition: attachment header) you can do so like this:

	/test_tables/facet_cities.csv?_dl=1

We link to the CSV and downloadable CSV URLs from the table and query pages.

The links use ?_size=max and so by default will return 1,000 rows.

Also fixes #303 - table names ending in .json or .csv are now detected and
URLs are generated that look like this instead:

	/test_tables/table%2Fwith%2Fslashes.csv?_format=csv

The ?_format= option is available for everything else too, but we link to the
.csv / .json versions in most cases because they are aesthetically pleasing.
This commit is contained in:
Simon Willison 2018-06-14 23:51:23 -07:00
commit 3a79ad98ea
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12 changed files with 243 additions and 38 deletions
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4
datasette/views/index.py
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@ -16,7 +16,7 @@ class IndexView(RenderMixin):
self.jinja_env = datasette.jinja_env
self.executor = datasette.executor
async def get(self, request, as_json):
async def get(self, request, as_format):
databases = []
for key, info in sorted(self.ds.inspect().items()):
tables = [t for t in info["tables"].values() if not t["hidden"]]
@ -38,7 +38,7 @@ class IndexView(RenderMixin):
"views_count": len(info["views"]),
}
databases.append(database)
if as_json:
if as_format:
headers = {}
if self.ds.cors:
headers["Access-Control-Allow-Origin"] = "*"