Provide :hide_default_column_types option to make hiding of default configurable

[jastkand]

First of all, thanks for the great gem!

2.7.0 release made hidden the default value of hstore, json and jsonb columns. It's reasonable in such cases like this: #320. But that's not good when the default value is more simple, like default({}) or default([]). I think it would be great to have hiding of default configurable. This pull-request introduces this feature.

[coveralls]

Changes Unknown when pulling bd910b0 on jastkand:configurable-hiding-of-default into * on ctran:develop*.

[ctran]

Great! One question though, I didn't see the existing defaults of "json,jsonb,hstore" being used if the option is not specified. Did I miss it somewhere?

[jastkand]

The goal was to be able to disable hiding of default. Using NO_LIMIT_COL_TYPES constant when the option value is blank does not allow to switch hiding off. In the previous implementation, the user had to explicitly specify "json,jsonb,hstore" which was not good.

Now I've updated the code to have the same behavior as hide_limit_column_types. Now in order to prevent hiding of default one can set the value of hide_default_column_types option to some value which does not represent the column type, like skip.

[coveralls]

Changes Unknown when pulling dbf19d7 on jastkand:configurable-hiding-of-default into * on ctran:develop*.

[coveralls]

Changes Unknown when pulling e007765 on jastkand:configurable-hiding-of-default into * on ctran:develop*.

[jastkand]

@ctran Would you mind taking a look at the PR?

[ctran]

Thanks!!!

[nneal]

I'm trying to use this in our environment, but doesn't seem to be working.

I have hide_default_column_types' => 'skip', as a setting in the annotate config file, i'm invoking annotate with b exec rake annotate_models and still not showing defaults for us :\ Not sure where I'm going wrong

[jastkand]

@nneal do you use version of gem from master? The feature is not yes released in rubygems version of gem.

[nneal]

I am using gem 'annotate', git: 'https://github.com/ctran/annotate_models.git', branch: 'develop' because it appears to be the most up to date branch on github, but i also tried branch: 'master'. Neither worked for these settings :\ Thank you for the help

[nneal]

@jastkand I left more information in here: #441