Is it posssible to validate a record before posting the update ? about orchardcore.transformalize

[dalenewman]

It is "possible" but, like a lot of things in this repository, it's pretty much undocumented.

If you really want to do this in Transformalize, Here are some things to look at:

• tests
• built in validators
• the most flexible validator (javascript)

Validators are operations (like Transforms are). Transform short-hand is set in an attribute called t while validator short-hand is set in the v attribute. Validators do not transform/modify anything. They produce an indication of valid, and a message. If you have a validator in a field called Field1, Transformalize will automatically make a bool field called Field1Valid and a string field called Field1Message. You can set these fields explicitly in the field as well with valid-field and message-field but then you have to define those fields too (as calculated fields that are not input).

If I have time I'll will make an example.

But, once you've figured out validation in Transformalize, you will want to know the approach we use. The approach to validating data before you update it somewhere else is this. You have one arrangement do the validation and produce an output with record-level and/or field level indication of the records' validity, then you have a subsequent action (or another arrangement) query the output of the first arrangement (only selecting valid records) to be updated in your ultimate destination.

[giannik]

Hmm interesting.
I will look at the pointers you mention.
Thanks.