Class: Renalware::UKRDC::TreatmentTimeline::RemapModelTableNamesToTheirPreparedEquivalents

Inherits:
Object
  • Object
show all
Defined in:
app/models/renalware/ukrdc/treatment_timeline/remap_model_table_names_to_their_prepared_equivalents.rb

Overview

When generating the treatment timeline, sites may want to pre-prepare a massaged version of say hd_profiles, in order to correct any anomalies. This service object will remap the table_name of the supplied (or default models) to the ‘ukrdc_prepared_*’ version if it exists. Otrherwise it will not change the table name. Note that this can only be done when executing as a rake task (which has its own process) as I beleive changing the table_name will affect all threads in the same process - so doing this in a puma process would mean users start to see only the contents of the ukrdc_prepared_tables. Not good :0.

Defined Under Namespace

Classes: ExecutionNotAllowedError

Constant Summary collapse

ALLOWED_PROCESSES = 
%w(rake rspec).freeze
MODELS = 
[
  Renalware::HD::Profile
].freeze

Instance Method Summary collapse

Instance Method Details

#call(models = MODELS) ⇒ Object

Saves the original table names for the array of models classes remaps to its ukrdc_prepared_* varaient if it exists, yields to allow the claling process to do its thing, then importantly winds back to the original table names.



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# File 'app/models/renalware/ukrdc/treatment_timeline/remap_model_table_names_to_their_prepared_equivalents.rb', line 26

def call(models = MODELS)
  fail_unless_running_in_rake_or_rspec
  models = Array(models)
  original_table_names = models.map(&:table_name)

  models.each do |model_class|
    prepared_table_name = prepared_table_name_for(model_class.table_name)
    model_class.table_name = prepared_table_name if table_exists?(prepared_table_name)
  end

  yield if block_given?

  models.each_with_index do |model_class, index|
    model_class.table_name = original_table_names[index]
  end
end