Statement Field generation_date NoMethodError: undefined method `date' for nil:NilClass

[TobiTobiM]

First of all thanks for sharing the code.

I updated cmxl version in my project from 0.2.0 to 1.4.1. Then one of my tests parsing a mt940 is failing.
Quickly i found why this happens. Generation_date in statement wants to read from field :20 or :13
In my case i get from my bank (Commerzbank) field :20 only with reference no extra values are provided.
Field :13 is not provided at all because it is mt942.

def generation_date field(20).date || field(13).date end

Call of field(13) gives nil and then method date fails with

NoMethodError: undefined method `date' for nil:NilClass

:20 exists in mt940 and mt942 so even if there is no generation_date provided in that field field(20).date will not fail. It only returns nil. But then field(13).date is called and gives error mentioned above.

Method generation_date should check if field :13 is provided before call date on it.

[bumi]

Thanks for reporting this.
and without checking the code and the specs this check sounds like a good addition.
Do you want to make a PR for that? that would be amazing!

[TobiTobiM]

Sure i can provide a PR. I checked the rspecs as far i can see generation_date is not called. That seems to be the reason why no rpsec is failing.

Edit: I have to revise my statement above. Generation_date is called but all examples have numbers in :20. In my case :20 has a alphanumeric reference

[bumi]

Thanks a lot for the pull request! PR: #36