GitHub user AhyoungRyu opened a pull request:
https://github.com/apache/zeppelin/pull/1822
[ZEPPELIN-1789] Make exported data file name more explicit
### What is this PR for?
Currently we can download table data set as `.csv` or `.tsv` format in
Zeppelin note. But since the exported file name is always set as `data.csv`, it
will be difficult to distinguish the each file if user tries to export it
several times. So I changed the naming rule like below.
1. if the paragraph has title e.g. `this is title`, then the exported csv
file name will be
`this is title_YYYY-MM-DD hh:mm:ss a.csv` .
2. if not, the file name will be `Exported data_YYYY-MM-DD hh:mm:ss a.csv` .
Please see the short discussion in
[ZEPPELIN-1789](https://issues.apache.org/jira/browse/ZEPPELIN-1789) for the
more details. I just made this PR by following one person's opinion who raised
this issue (_Ruslan Dautkhanov_ ). So if anyone has better idea, please feel
free to share :)
### What type of PR is it?
Improvement
### What is the Jira issue?
[ZEPPELIN-1789](https://issues.apache.org/jira/browse/ZEPPELIN-1789)
### How should this be tested?
1. run Zeppelin web dev mode under `zeppelin-web`
```
$ npm run dev
```
2. browse `http://localhost:9000` and go to Zeppelin-Spark tutorial note
3. click 
If the paragraph has title, then the exported file name will be
`"paragraph_title_YYYY-MM-DD hh:mm:ss a".csv`, if not, will be `"Exported
data_YYYY-MM-DD hh:mm:ss a".csv`.
### Screenshots (if appropriate)
### Questions:
* Does the licenses files need update? no
* Is there breaking changes for older versions? no
* Does this needs documentation? no
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/AhyoungRyu/zeppelin ZEPPELIN-1789
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/zeppelin/pull/1822.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1822
----
commit 64c3e183bab19a7b3768edda01d78cc809bb56d9
Author: AhyoungRyu <[email protected]>
Date: 2016-12-30T05:21:37Z
Make exported data file name more explicit
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