download current view

[curran]

Will close #75

[curran]

Now there is a "Download Currently Shown Data" button that downloads CSV data for the currently selected field only. Here's a sample of the CSV output:

State,Year,IndividualToCandLimit_H_Max
"LA",1996,"5000"
"WV",1996,"2000"
"SD",1996,"500"
"NM",1996,""
"NV",1996,"2000"
"VT",1996,"2000"
"AK",1996,"2000"
"HI",1996,"2000"
"KS",1996,"1000"
"SC",1996,"3500"
"OK",1996,"5000"
"MN",1996,"600"
"AL",1996,""
"ID",1996,""
"PA",1996,""
"NE",1996,""

The information about unlimited vs. prohibited is missing, but this gets us a step in the right direction. I have added a follow-on issue about adding the prohibited vs. unlimited information #78

[curran]

Merging for demoability.

[seemantk]

this is great, @curran. nicely done! we do need to figure out prohibited/unlimited.

[curran]

@seemantk Indeed, that is a tricky bit.

What are your thoughts on having a more elaborate pre-processing step, in which the logic for determining prohibited/unlimited is done completely separately from the vis? This would give several benefits:

• The vis could read a CSV where each column contains the values including special signals for prohibited/unlimited (maybe "0" and "Infinity").
• The data download button would not need any logic for determining prohibited/unlimited
• The data download button for the entire limits dataset could simply point to a static CSV file.