lib/rbbt/association/item.rb in rbbt-util-5.5.40 vs lib/rbbt/association/item.rb in rbbt-util-5.5.41

@@ -41,11 +41,11 @@
     value.collect{|v|
       Hash[*fields.zip(v).flatten]
     }
   end
 
-  def self.incidence(pairs)
+  def self.incidence(pairs, key_field = nil)
     matrix = {}
     targets = []
     sources = []
     matches = {}
 
@@ -62,8 +62,8 @@
 
     matches.each do |s,hash|
       matrix[s] = hash.values_at(*targets)
     end
 
-    defined?(TSV)? TSV.setup(matrix, :fields => targets, :type => :list) : matrix
+    defined?(TSV)? TSV.setup(matrix, :key_field => (key_field || "Source") , :fields => targets, :type => :list) : matrix
   end
 end