plugin to validate the definition of wip and throw error message in case full...

plugin to validate the definition of wip and throw error message in case full batches cannot be formed

dream/plugins/Batches/BatchesWIPShort.py

@@ -43,7 +43,7 @@ class BatchesWIPShort(plugin.InputPreparationPlugin):
             sharingStations=[]
             if workingBatchSize!=standardBatchUnits:
                 sharingStations=self.findSharingStations(data,stationId)
-                print stationId,workingBatchSize,sharingStations
+                self.checkIfDefinitionIsValid(data, WIPData, stationId, sharingStations)
             
         return data
     
@@ -81,6 +81,26 @@ class BatchesWIPShort(plugin.InputPreparationPlugin):
             current=next
         return sharingStations
         
+    # validates the definition of WIP and throws an error message in case it is not valid, i.e. not full batches are formed
+    def checkIfDefinitionIsValid(self,data,WIPData,stationId,sharingStations):
+        # find all the stations in the group. For example PackagingA may not share batches with PackagingB. 
+        # but carding does share with both so the group should contain all 3 stations
+        allStations=[stationId]+sharingStations
+        stationsToAdd=[]
+        for station in allStations:
+            parallelStations=self.getParallelStations(data, station)
+            for id in parallelStations:
+                if id not in allStations:
+                    stationsToAdd.append(id)
+        allStations.extend(stationsToAdd)
+        totalUnits=0
+        for row in WIPData:
+            if row[0] in allStations:
+                if row[1]:
+                    totalUnits+=int(row[1])
+                if row[2]:
+                    totalUnits+=int(row[2])
+        assert totalUnits % 80 == 0, 'wrong wip definition in group '+str(allStations)+'. Not full batches.'