globalize gem is a great solution to add translations to our ActiveRecord
We can install it add this to our Gemfile:
If we're using Rails 5 we will also need to add activemodel-serializers-xml
Example
After we defined our model attributes that need to be translated we have to create a translation table, through a migration. globalize provides create_translation_table! and drop_translation_table!.
For this migration we need to use up and down, and not change. Also, in order to run this migration successfully.
We have to define the translated attributes in our model first, like shown above.
A proper migration for the previous Post model is this:
We may also pass options for specific options
In case we already have any existing data in your needing translation columns, we can easily migrate it to the translations table, by adjusting our migration:
Note:Make sure we drop the translated columns from the parent table after all our data is safely migrated.
To automatically remove the translated columns from the parent table after the data migration, add the option remove_source_columns to the migration:
We may also add new fields to a previously created translations table:
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