Turn off thumbnail creation for all but rate files

[bhilbert4]

Resolves #957

This PR makes changes to the preview image generation code such that thumbnail images are created only for rate files. Currently we are creating thumbnail files for all file types (uncal, rate, cal, etc). However, we only need one thumbnail for each file, since the instrument archive pages do not show separate images for each file type.

[pep8speaks]

Hello @bhilbert4, Thank you for updating !

• In the file jwql/utils/preview_image.py:

Line 50:1: E402 module level import not at top of file
Line 51:1: E402 module level import not at top of file
Line 52:1: E402 module level import not at top of file

• In the file jwql/website/apps/jwql/data_containers.py:

Line 54:34: E126 continuation line over-indented for hanging indent
Line 77:1: E402 module level import not at top of file
Line 78:1: E402 module level import not at top of file
Line 217:64: E226 missing whitespace around arithmetic operator
Line 982:13: E265 block comment should start with '# '
Line 1016:5: E265 block comment should start with '# '
Line 1078:17: W503 line break before binary operator
Line 1079:17: W503 line break before binary operator
Line 1080:17: W503 line break before binary operator
Line 1081:17: W503 line break before binary operator
Line 1416:5: E265 block comment should start with '# '
Line 1416:5: E303 too many blank lines (2)
Line 1417:5: E265 block comment should start with '# '
Line 1418:5: E265 block comment should start with '# '
Line 1419:5: E265 block comment should start with '# '
Line 1420:5: E265 block comment should start with '# '
Line 1421:5: E265 block comment should start with '# '
Line 1435:5: E303 too many blank lines (2)
Line 1503:9: E722 do not use bare 'except'

Comment last updated at 2022-07-22 16:53:08 UTC

[bhilbert4]

• Make sure the pages that show thumbnails for a given proposal are only looking for thumbnail files from rate images
• Test on dev or test server
• Dark current observations don't produce rate files. They have uncal.fits and dark.fits. Adjust code to work for one of these filetypes, just for dark observations.

[bhilbert4]

Interested to hear what @BradleySappington thinks of these changes, since he's spent a lot of time recently looking at preview/thumbnail image generation.

[BradleySappington]

This looks good with the understanding that the dark files will not be created until the third task is completed.

[BradleySappington]

Looks good, would hold off on merge until dark code is included.

[bhilbert4]

First test on the dev server failed due to a typo in the filename to save the thumbnails to. Typo has been fixed in the latest commit, and this is ready for re-testing on the dev server. Concentrate on program 1062, whose thumbnails I removed.

[bhilbert4]

Tested on the test server. The code successfully made thumbnail files only for rate and dark files, as expected. I then tested and these new thumbnail images were successfully displayed on pages for individual programs.

@mfixstsci I think this is ready for review. Once this is in, I think we'll be in good shape to regenerate thumbnails on the ops server.

[bhilbert4]

Ah sorry, I forgot that @BradleySappington reviewed this earlier. Either one or both of you are welcome to check the latest updates.

[mfixstsci]

@BradleySappington would you like to do the honors and merge it?

[BradleySappington]

yessir!

[bhilbert4]

Thanks!

[BradleySappington]

@mfixstsci I currently lack authorization to merge

[mfixstsci]

That's okay @BradleySappington, the branch was stale so we had to merge all of our recent updates into this branch. Once the tests pass, send it.

[BradleySappington]

Tests passed, but merging is blocked because I'm not authorized. This is a "protected branch"

[BradleySappington]