[Hibernate4] Support for array citext (case insensitive strings)

[ilopmar]

This PR is to fix the issue #26. Is not finished yet, some tests are missing. Please do not merge it.

@Alotor please review it and check specially the comment of ArrayType file. If you're not sure about merge it, we can at the office when I return from my holidays.

[coveralls]

Coverage increased (+0.56%) when pulling 5870619 on hibernate4/array_citext into 6b9218a on master.

[Alotor]

I think when the type is a "citext" we should use getObject instead of getArray because is not a standard JDBC but a Postgres specific type. I had the same problem with the ranges support.

I think it's better to use getObject and then parse the String to change it into a String array.

[ilopmar]

Ok, I'll try to change it using your code of ranges as a guide

[ilopmar]

You're absolutely right, I don't know what I was thinking.

I used getObject for the json support but I don't think about it for the
citext. Last night I did some tests and it works. Now I only have to find a
good parser from string to array because I'm not going to write one from
scratch :-P

[coveralls]

Coverage increased (+0.52%) when pulling c0bd666 on hibernate4/array_citext into cc40563 on master.

[coveralls]

Coverage increased (+0.52%) when pulling 285362a on hibernate4/array_citext into bbc1cb4 on master.

[aeischeid]

Sorry I haven't had time to try this. Actually not sure how to try it without a release version to plug into my config.groovy file.

[ilopmar]

@aeischeid Currently the feature is not complete and the code is pretty ugly so we're not going to merge and release a new version with this.
We're working on a way to parse the string with the postgres array to a java String[].

In any case, if you want to try you can clone the repo and define the plugin as inline instead of use a published version. You can add to your BuildConfig.groovy:

grails.plugin.location."postgresql-extensions" = "../postgresql-extensions"

And remove the line in the plugins section.