On Tuesday, October 20, 2015 at 11:10:43 AM UTC-7, Jeremy Swartwood wrote:
>
> I'm trying to create a dynamic/generic GET method for a REST api. My code
> is working but I want to generalize it a bit.
>
> Essentially I don't want to have to create an instance variable
> (source_system), and set it outside (ba.source_system = ba[:value]) in an
> interation, just to use it inside (*sourceSystem: source_system**,*) in a
> method. I want to just use "value" directly inside the model class.
>
> My model class joins to a lookup table of KEY/VALUE. I can access that
> just fine with .each do. However, if I try to access the column in the
> model, it doesn't exist as one of the columns.
>
> Models::Accounts
> .where(return_object.params_extractor.where_conditions)
> .qualify(:account)
> .association_join(:account_source_values)
> .select_append(:account_source_values__value___value)
> .limit(page_opts[:per_page], page_opts[:offset])
> .each do |ba|
>
> ba.source_system = ba[:value]
>
> puts ba.to_hash
>
>
> I can access value when doing an iteration over it and calling ba[:value].
>
> but if I call a method on it inside that iteration:
>
> - ba.to_hash
>
> it doesn't have access to *value *in the to_hash method.
>
> calling p self.columns doesn't show the joined column t
>
> def to_hash
> puts self.columns
> {
> id: account_id,
> meta: create_meta,
> accountNumber: account_ref,
> * sourceSystem: value**,*
> isActive: to_bool(active),
> enrolleeId: enrollee_id,
> _links: create_links
> }
> end
>
>
>
Assuming I'm reading this correctly, and you just want to use sourceSystem
as the key in the hash, it seems easiest to just alias appropriately in
your query:
.select_append(:account_source_values__value___sourceSystem)
Thanks,
Jeremy
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