As commands now commit/recalc even in case of failure (as they do not know about exact reason of failure and we're not sure if rollback was succeeded), do not run them for every item added via double-click

eos/gamedata.py

@@ -142,7 +142,7 @@ class Effect(EqBase):
         """
         if not self.__generated:
             self.__generateHandler()
-        
+
         return self.__effectDef is not None
 
     def isType(self, type):
@@ -151,7 +151,7 @@ class Effect(EqBase):
         """
         if not self.__generated:
             self.__generateHandler()
-        
+
         return self.type is not None and type in self.type
 
     def __generateHandler(self):
@@ -477,9 +477,33 @@ class Item(EqBase):
     def getAbyssalTypes(cls):
         cls.ABYSSAL_TYPES = eos.db.getAbyssalTypes()
 
+    @property
+    def isModule(self):
+        return self.category.name == 'Module'
+
+    @property
+    def isSubsystem(self):
+        return self.category.name == 'Subsystem'
+
     @property
     def isCharge(self):
-        return self.category.name == "Charge"
+        return self.category.name == 'Charge'
+
+    @property
+    def isDrone(self):
+        return self.category.name == 'Drone'
+
+    @property
+    def isFighter(self):
+        return self.category.name == 'Fighter'
+
+    @property
+    def isImplant(self):
+        return self.category.name == 'Implant' and self.group.name != 'Booster'
+
+    @property
+    def isBooster(self):
+        return self.group.name == 'Booster' and self.category.name == 'Implant'
 
     def __repr__(self):
         return "Item(ID={}, name={}) at {}".format(