When did data install/upgrade scripts get introduced

Question

What version of Magento first allowed data install/setup scripts i.e. mymodule/data/mymodule_setup...

It looks like in 1.5 CE data scripts do not work - but a cursory look at the core resource setup class i can see references to them?

I am wondering when they were introduced and from what version they can be used?

Answer 1

I can see what is happening now.

pre 1.6 the data install scripts were mixed with the sql install scripts under the sql directory.

1.6 and up is what i am used to where the data and sql directories are separate.

Answer 2

The data_version column was added in version 1.4. The code to apply all data updates was also added in version 1.4. Look for the line Mage_Core_Model_Resource_Setup::applyAllDataUpdates();. This line is missing in the same file in version 1.3. The strange thing is that for example the data folder in Mage_Catalog was added in the version 1.6. Maybe it wasn't functional until 1.6.

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