Hi,
I am Simran, an intern at the Institute for Software in HSR Rapperswil. I have
come up with some Custom Python Expression functions for QGIS. They are:
1. hstore_get_value(), hstore_exist(), hstore_contains_key_value() and
hstore_contains_hstore() :
These functions can search for keys and values in hstore strings. They are
useful for selecting features based on their tags, which are of hstore type.
2. maxofallvaluesplusone('fieldName')
Given a field name, this function returns 1 + the maximum of all values in that
field. It is useful for automatically generating a unique id (for example fid)
every time the user adds a new feature to a layer.
You can find the functions on Github:
https://github.com/simran001/custom-expression-functions
Please let me know if I should publish these functions as part of the QGIS
Resource Sharing Plugin, or if it would be a better idea to make a pull request
at https://github.com/NathanW2/qgsexpressionsplus.
Thanks!
Best regards,
Simran
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