+22I would like some mechanism to dynamically add attributes to a writer – presumably linked to some transformer.
Note that this is not a dynamic schema -- The attributes do not exist on the source data, and I don’t know ahead of time what the attributes will be so I can’t manually add them to the writer. An example is any key/value pair from a list (ListHistogrammer for instance) where I would like the attribute name (key) added to the writer.
+19Yes it is painful that dynamic attribute creation within the workspace isn't handled well.
+25I just started to write the idea 'Add attributes to dynamic writer', when this post was autosuggested to me. I don't know if my idea spawned from a comparable problem as @FMELizard, but I will add mine as a comment here..... (and add a vote-up).
At the moment the dynamic writer allows to remove attributes, but I have some big workspaces doing a lot of tests on multiple featuretypes, resulting only in adding an attribute 'reason_failed' to some. Not being able to use a dynamic writer with 'add attribute, reason_failed (string)' results in a FeatureTypeFilter spanning the whole vertical region of my screen when zoomed out to the max, and a motherload of attribute-keepers to recreate the schema of every feature, with the reason_failed attribute. This of course is error prone beyond normal software development standards ;-).
Kind regards, Martin
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