Saving Liferay 7 forms json to a separate db rather than liferay

[Rajesh Chaurasia，修改在6 年前。]

Hi All

I have a use case where i am required to save the form data - json -to a separate db rather than liferay db.
For this use case i figured out that Liferay 7 forms can be used but my use case is little different due to above scenario.
Can we still use liferay 7 forms with some modification ?

[David H Nebinger，修改在6 年前。]

No modifications necessary.

Just create an implementation of the com.liferay.dynamic.data.mapping.storage.StorageAdapter. When creating your form, you can select this storage adapter for the form.

Your storage adapter can then do anything to persist and access the data. Check out the com.liferay.dynamic.data.mapping.storage.impl.JSONStorageAdapter to see how to serialize to/from json and how the Liferay implementation handles the persistence.






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[Rajesh Chaurasia，修改在6 年前。]

Hi David ,

Thanks for the reply.
So i can persist the data entered in form into a separate database.
Also can you let me know if i can apply some business rules on the form like if i have a field weight - can i apply a business rule like weight should not exceed 100 kg upper limit at front end and also at backend?

[David H Nebinger，修改在6 年前。]

Not sure that's going to be possible there; the expectation is that code will persist the form, not really reject form data.







Come meet me at the 2017 LSNA!

[Mohamed RAGUIG，修改在4 年前。]

Hello everybody,
I have a requirement related to this thread, i want to change the storage table of my form, i'm using Liferay 7.2. I tried to implement the StorageAdapter interface but all my imported classes are deprecated, in addition to this building and deploying my service to my server didn't add the storage option in the form settings.

[Vishal Srivastava，修改在3 年前。]

Kindly use DDMStorageAdapter instead of BaseStorageAdapter!!

[David H Nebinger，修改在3 年前。]

Vishal Srivastava:

Kindly use DDMStorageAdapter instead of BaseStorageAdapter!!

3 years ago when this was posted, DDMStorageAdapter didn't exist yet.