[Fix] Resource method is those explicitly defined only

[okuramasafumi]

For example, params method is on every Resource class, but they're not intended to be used as attribute.
So, attributes :params should work when prefer_resource_method is on.

Fix #342 #343

[codecov]

Codecov Report

Merging #344 (aa41c8c) into main (d46615a) will decrease coverage by 0.54%.
Report is 1 commits behind head on main.
The diff coverage is 70.00%.

@@            Coverage Diff             @@
##             main     #344      +/-   ##
==========================================
- Coverage   99.27%   98.73%   -0.54%     
==========================================
  Files          14       14              
  Lines         548      554       +6     
==========================================
+ Hits          544      547       +3     
- Misses          4        7       +3     

Files	Coverage Δ
lib/alba/association.rb	100.00% <ø> (ø)
lib/alba/conditional_attribute.rb	100.00% <ø> (ø)
lib/alba/resource.rb	98.09% <70.00%> (-1.12%)	⬇️

[okuramasafumi]

On CI, JRuby and codecov checks are failing.
JRuby's failure is not Alba's problem, and we can increase coverage later.
So I'm going to merge it and release a new version.

[tientt-holistics]

Hi @okuramasafumi ,
I'm currently using Alba version 2.4.2 and facing the issue that you trying to fix here.
Is there any possibility that you could backport this fix back to back to version 2.x?
Thank you

[okuramasafumi]

@tientt-holistics Although it's possible, Alba v3 is quite mature now and I'd like people to use it instead of v2. What does prevent you from upgrading?

[tientt-holistics]

I'm in the process of upgrading our project from using Ruby 2.7 to Ruby 3.x. After updating to Ruby 3.x, I will definitely using Alba v3.

However, Alba v3 will use prefer_resource_method! as default behavior.
For safety, I am using Alba 2.4.2 and explicitly add prefer_resource_method! to all my Serializers (with a feature flag to quickly disable it), making sure that when it's time to upgrade to Alba v3, there will be no breaking change.
But this bug is preventing me from doing that.

[okuramasafumi]

@tientt-holistics https://rubygems.org/gems/alba/versions/2.4.3 version 2.4.3 was released and I hope it fixes your problem!

[tientt-holistics]

Wow, that was fast. Everything is okay now with the new version. Thank you for your help a lots @okuramasafumi