Module: CompositePrimaryKeys

Defined in:
lib/composite_primary_keys/version.rb,
lib/composite_primary_keys/composite_arrays.rb,
lib/composite_primary_keys/relation/batches.rb,
lib/composite_primary_keys/composite_relation.rb,
lib/composite_primary_keys/composite_predicates.rb,
lib/composite_primary_keys/relation/calculations.rb,
lib/composite_primary_keys/relation/query_methods.rb,
lib/composite_primary_keys/relation/finder_methods.rb,
lib/composite_primary_keys/associations/collection_association.rb

Defined Under Namespace

Modules: ActiveRecord, ArrayExtension, CollectionAssociation, CompositeRelation, Predicates, VERSION Classes: CompositeKeys

Constant Summary collapse

ID_SEP = 
','
ID_SET_SEP = 
';'
ESCAPE_CHAR = 
'^'

Class Method Summary collapse

Class Method Details

.normalize(ids, cpk_size) ⇒ Object

Convert mixed representation of CPKs (by strings or arrays) to normalized representation (just by arrays).

‘ids` is Array that may contain:

  1. A CPK represented by an array or a string.

  2. An array of CPKs represented by arrays or strings.

There is an issue. Let ‘ids` contain an array with serveral strings. We can’t distinguish case 1 from case 2 there in general. E.g. the item can be an array containing appropriate number of strings, and each string can contain appropriate number of commas. We consider case 2 to win there.



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# File 'lib/composite_primary_keys/composite_arrays.rb', line 22

def self.normalize(ids, cpk_size)
  ids.map do |id|
    if Utils.cpk_as_array?(id, cpk_size) && id.any? { |item| !Utils.cpk_as_string?(item, cpk_size) }
      # CPK as an array - case 1
      id
    elsif id.is_a?(Array)
      # An array of CPKs - case 2
      normalize(id, cpk_size)
    elsif id.is_a?(String)
      # CPK as a string - case 1
      CompositeKeys.parse(id)
    else
      id
    end
  end
end