lib/rulebase.rb in rkneufeld-fuzzy-realty-0.5.0 vs lib/rulebase.rb in rkneufeld-fuzzy-realty-0.5.1

@@ -1,62 +1,66 @@
 require 'scores_table.rb'
 module FuzzyRealty
-  RULES = {
-    # Not yet implemented
-    #:bathrooms => ,
-    #:bedrooms => ,
-    #:garage => ,
-    #:deck => ,
+  RULES = lambda do
+    rules = {
+      # Not yet implemented
+      #:bathrooms => ,
+      #:bedrooms => ,
+      #:garage => ,
+      #:deck => ,
     
-    # Price is match when desired is 90-105%  of actual. Otherwise give a
-    # reduced factor.
-    :price => 
-      lambda do |listing,desired| 
-        puts "Called price" if $debug
-        actual = listing.price.to_f
-        result = if (desired*0.90..desired*1.05) === actual
-          1.0
-        else 
-          1 - ((desired - actual) / actual).abs
-        end
-        puts result if $debug
-        result
-      end,
+      # Price is match when desired is 90-105%  of actual. Otherwise give a
+      # reduced factor.
+      :price => 
+        lambda do |listing,desired| 
+          puts "Called price" if $debug
+          actual = listing.price.to_f
+          result = if (desired*0.90..desired*1.05) === actual
+            1.0
+          else 
+            1 - ((desired - actual) / actual).abs
+          end
+          puts result if $debug
+          result
+        end,
   
-    # Location calc. does lookup to find score for desired and actual
-    ## Currently just return 1 if exact, 0 otherwise
-    :location => 
-      lambda do |listing,desired|
-        puts "Called location" if $debug
-        # Perform a quick lookup (i.e. FuzzyRealty::LOCN[:A][:A] => 1.0)
-        puts FuzzyRealty::LOCN[desired.to_sym][listing.location.to_sym] if $debug
-        FuzzyRealty::LOCN[desired.to_sym][listing.location.to_sym]
-      end,
+      # Location calc. does lookup to find score for desired and actual
+      ## Currently just return 1 if exact, 0 otherwise
+      :location => 
+        lambda do |listing,desired|
+          puts "Called location" if $debug
+          # Perform a quick lookup (i.e. FuzzyRealty::LOCN[:A][:A] => 1.0)
+          puts FuzzyRealty::LOCN[desired.to_sym][listing.location.to_sym] if $debug
+          FuzzyRealty::LOCN[desired.to_sym][listing.location.to_sym]
+        end,
       
-    :sqft => 
-      lambda do |listing,desired|
-                puts "Called sqft" if $debug
-        actual = listing.sqft
-        result = if (actual + 50) >= desired
-          1.0
-        elsif (actual + 150) >= desired
-          0.8
-        elsif (actual + 300) >= desired
-          0.5
-        else
-          0.0
-        end
-        puts result if $debug
-        result
-      end,
-    # Style's follow lookup table similar to Location
+      :sqft => 
+        lambda do |listing,desired|
+                  puts "Called sqft" if $debug
+          actual = listing.sqft
+          result = if (actual + 50) >= desired
+            1.0
+          elsif (actual + 150) >= desired
+            0.8
+          elsif (actual + 300) >= desired
+            0.5
+          else
+            0.0
+          end
+          puts result if $debug
+          result
+        end,
+      # Style's follow lookup table similar to Location
 
-    :style => 
-      lambda do |listing,desired|
-                puts "Called style" if $debug
-        desired = FuzzyRealty::STYLE[:Symbol][desired]
-        actual  = FuzzyRealty::STYLE[:Symbol][listing.style]
-        puts FuzzyRealty::STYLE[desired][actual] if $debug
-        FuzzyRealty::STYLE[desired][actual]
-      end
-  }
+      :style => 
+        lambda do |listing,desired|
+                  puts "Called style" if $debug
+          desired = FuzzyRealty::STYLE[:Symbol][desired]
+          actual  = FuzzyRealty::STYLE[:Symbol][listing.style]
+          puts FuzzyRealty::STYLE[desired][actual] if $debug
+          FuzzyRealty::STYLE[desired][actual]
+        end
+    }
+    rules.default = lambda {|a,b| raise "Invalid type used in rule lookup"}
+    rules
+  end.call
 end
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