Associations Using External Data
Learn how associations work with changesets using external data.
We’ll now look at how to create a changeset with associations when the data comes from an external source. We will use the following:
- Forms presented to the user
- Uploaded spreadsheet
- Data posted to an API endpoint and so on
Earlier, we saw that we create new changesets using change
or cast
, depending on where the data came from. Similarly, we use put_assoc
for internal data (as we saw in the last section) or cast_assoc
for external data. This section will look at cast_assoc
in more depth.
Creating new Records with
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