Nate Leavitt wrote:
> First off, I'm an intermediate Rails developer who is still learning the
> inner workings of Rails.. so here is my situation/problem:
>
> I have written a Plugin that accesses a third party API. Within the
> Plugin I had multiple classes that inherit from one another. Example:
>
> **************************
> Old Code (Plugin Classes)
> **************************
>
> class ApiConn
> attr_accessor :api_url, :api_key
>
> def initialize(url, key)
> @api_url = url
> @api_key = key
> end
>
> def api_perform(class_type, method, *args)
> begin
> server = XMLRPC::Client.new3({'host' => self.api_url, 'path' =>
> "/api/xmlrpc", 'port' => 443, 'use_ssl' => true})
> result = server.call("#{class_type}.#{method}", self.api_key,
> *args)
> rescue XMLRPC::FaultException => e
> puts "*** Api Error: #{e.faultCode} - #{e.faultString} ***"
> end
>
> return result
> end
> end
>
> class ContactService < ApiConn
> def api_contact_add(data)
> api_perform('ContactService', 'add', data)
> end
> end
>
> ....
>
> **************************
> Then within my ApplicationController I have this:
> **************************
>
> Account
> def current_account
> @current_account ||=
> Rails.cache.fetch("ch:current:account:#{current_subdomain}"){
> Account.find_by_subdomain(current_subdomain)
> }
> end
>
> def app_contact_svc
> @app_contact_svc ||=
> ContactService.new("#{current_account.api_url}.application.com",
> current_account.api_key)
> end
>
>
> **************************
>
>
> Well, this has worked fine. However, as I've been going through my
> controllers, I've noticed that a lot of these calls should be moved to
> the models. For example, I have an ActiveRecord model named Contact and
> I would like to be able to call api_contact_add from within the instance
> of that model. I know I would be able to do that by switching the
> plugin to a module.
>
> However, here is the problem: The rails app uses accounts and each
> account has a different api_url and api_key. The current_account(see
> above) is set by the subdomain being used.
>
> So I guess my question is how I can have module attributes set
> specifically for each account through multiple models?
>
> So instead of doing Contact.new(api_url, key) in an initialize statement
> for each class that includes the ApiConn module, I would like these
> values set once for all models specific to the account.
>
> I hope this make sense :)
Perhaps something like:
module ContactService
def self.set_account(url, key)
Thread.current[:api_conn] = ApiConn.new(url, key)
end
def api_contact_add(data)
Thread.current[:api_conn].api_perform('ContactService', 'add', data)
end
end
before_filter do
ContactService.set_account(
"#{current_account.api_url}.application.com", current_account.api_key)
end
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