[QGIS-Developer] Thoughts on using processing models for ETL tasks

[johnrobot]

Continuing my quest for QGIS ETL perfection, I have a few more questions:

1) Is there a way of selecting output from multiple algorithms as input for
an algorithm? In the drop down list, I can only select one input source and
I often want to use more than one.

2) I want to adjust lower/upper attribute string values. I can of course use
upper/lower functions in the Field Calculator but what if I want to change
"firstname lastname" to "Firstname Lastname"? Is there a way of changing
only the first character in each word?

3) Is there a way of splitting an attribute with a specific character? For
example, I might want to split an attribute with '>' and set an upper limit
for how many new attributes may be created by this operation, in case the
input attribute contains more than one '>'. This seems hard to do with the
Field Calculator, where I have to specify the name and data type of a single
new attribute.

4) Continuing on #3: Why do I have to specify the data type inside a model?
Shouldn´t that be a task when writing the output? Before that, the user
shouldn´t have to think about data types.

Regards,

Magnus



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