Make correspondence list displayable

[nichgray]

Convert some of the data in the correspondence tracking spreadsheet to CSV and then pursue options for displaying it on the site. Ideally data should have some sorting functionality. May consider datatables approach or try using the API.

[karindalziel]

code to look at: https://github.com/CDRH/data_teaa/blob/5ad818a8a0a0b948948234e51e55c478294f3d92/scripts/overrides/file_csv.rb#L50

the commented out bit wrote out one whole file, the bit below it made an html file for each row

[nichgray]

Documentation of how to generate/update catalog as it stands (in case helpful for Karin):

1. download CSV from working Google doc
2. clean up CSV and limit to fields (column names): identifier sender recipient date source
3. save file as letters_catalog.csv
4. upload to /source/csv, overwriting if the file already exists
5. in data repo, run: post -x html -r catalog #this does the csv -> html transformation and outputs into source
6. in data repo, run: post -x es,html -r catalog #this does the html transformation and ingests into es
7. view data at catalog link from correspondence page

[nichgray]

NOTES:

• the catalog shows up as an item in the list of correspondence results
• there will be an ES "error" while posting: this will read as "No file has been transformed" and can be disregarded (note that on recent post another ES error related to a "default" file in source popped--this file should probably be deleted?)
• note also that there are several parsing errors for correspondence TEI files on post (this may resolve itself when the branch is merged with a branch harboring more recent files)
• if CSV is used for any other purpose, the file_csv.rb file will have to be reconfigured
• if HTML is used for any other purpose, the html_to_es.rb file will have to be reconfigured

[nichgray]

This should be completed and ready to close if code review comes back okay and posting works (though perhaps save documentation separately).

[karindalziel]

Added Nikki's posting instructions, closing this issue https://github.com/CDRH/data_chesnutt/blob/dev/posting_instructions.md#correspondence-csv