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Tsammalex Data
==============
[](https://travis-ci.org/clld/tsammalex-data)
This repository holds the data served by http://tsammalex.clld.org/
The data is licensed under a Creative Commons Attribution 4.0 International License.
The data is stored as collection of csv files, suitable for editing with LibreOffice.
Adding images
-------------
Adding an image is done in two steps:
1. Adding a row to ``images.csv``, specifying a publicly available URL to access the image in the ``source_url`` column (this may be a temporary GitHub repository, wikimedia commons or other publicly available webspace).
2. Providing the image at the specified URL for download.
Notes:
- Use the [md5 hash](http://en.wikipedia.org/wiki/MD5) of the image file as `id` for the row in `images.csv`.
Computing this hash can be done using [FCIV on Windows](http://support.microsoft.com/kb/889768), with the
[md5sum command](http://en.wikipedia.org/wiki/Md5sum) on Linux or
with the [md5 command](http://osxdaily.com/2009/10/13/check-md5-hash-on-your-mac/) on mac.
- When a data release is created, new images will be fetched from the sources and uploaded to [Edmond](http://edmond.mpdl.mpg.de/imeji/collection/d2JGQRxO19XTOEXG) - the MPS' media repository.
Referential Integrity
---------------------
Currently, insuring referential integrity of the data is the responsibility of the editor. In particular editors have
to make sure
- ``id`` columns hold unique values,
- ``<name>__id`` columns hold values which exist as ``id`` in the referenced table,
- ``<name>__ids`` columns hold comma-separated lists of values which exist as ``id`` in the referenced table.
Upon push, referential integrity will be checked by travis-ci.
Changing the scientific name of a species
-----------------------------------------
Since the ``id`` of a species is created from its scientifc name, changing this name involves the following steps:
1. Add a new species with the updated name and ``id`` to ``species.csv``.
2. Update all references to the ``id`` in ``images.csv`` and ``words.csv``.
3. **TODO** redirect the old species to the new one by ...
Supplemental Data
-----------------
In addition to the data managed in this repository, we fetch data from other sources to enhance the usability of the site.
- Given a proper scientific name for a species we can fetch a corresponding identifier from [EOL](http://eol.org).
- Given an EOL identifier, we can information about the biological classification of a species and a common english name.
- We also use information on terrestrial ecoregions from WWF, which can be referenced using ecoregion identifiers in the format ``AT0101``.
- WWF ecoregions and countries in which a species occurs can be computed by matching [occurrence information](http://www.gbif.org/occurrence) from [GBIF](http://www.gbif.org) against region borders.
Notes
-----
Notes to self:
- To diff sorted lines, you may run:
diff -b <(sort words.csv) <(sort words_CN.csv)
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