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Remove null or None from JSON? #30

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nensor opened this issue May 4, 2021 · 3 comments · May be fixed by #55
Open

Remove null or None from JSON? #30

nensor opened this issue May 4, 2021 · 3 comments · May be fixed by #55

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@nensor
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nensor commented May 4, 2021

Using the serializer successfully with my data model, but I was wondering if there's a simple way to get it to filter out "null" items when serializing models or dictionaries?

My data is pulled from Postgresql, and as I'm feeding much of it to SOLR for indexing purposes, I'd like to reduce the document size and eliminate unneeded elements from the JSON output. If there's already an option in the Serializer I'm missing or an easy way to accomplish this via the model, I'd appreciate a pointer.

Thanks in advance.
@n0nSmoker
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So basically you need to get smth like this:
{'key':{'key1': True}
instead of this:
{'key':{'key1': True, 'key2': None}
Am I right?

@n0nSmoker
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To filter out specific values, not keys?

@n0nSmoker
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If so I can add an option for you, it doesn't look difficult and should not affect performance.
Smth like the following:
model.to_dict(only=('...',), sieve=lambda x: x is not None)

@n0nSmoker n0nSmoker linked a pull request Jul 19, 2024 that will close this issue
Add skip_none_values param #55
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Add skip_none_values param n0nSmoker/SQLAlchemy-serializer
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@n0nSmoker @nensor