pets: @WIP add migration script from old to new system (not working)

migrations/20130326_migrate_pets.js

@@ -0,0 +1,89 @@
+/**
+ * Migrate old pets to new system
+ */
+// mongo habitrpg ./node_modules/underscore/underscore.js ./migrations/20130326_migrate_pets.js
+
+var mapping = {
+    bearcub: {name:'BearCub', modifier: 'Base'},
+    cactus: {name:'Cactus', modifier:'Base'},
+    dragon: {name:'Dragon', modifier:'Base'},
+    flyingpig: {name:'FlyingPig', modifier:'Base'},
+    fox: {name:'Fox', modifier:'Base'},
+    lioncub: {name:'LionCub', modifier:'Base'},
+    pandacub: {name:'PandaCub', modifier:'Base'},
+    tigercub: {name:'TigerCub', modifier:'Base'},
+    wolfBorder: {name:'Wolf', modifier:'Base'},
+    wolfDesert: {name:'Wolf', modifier:'Desert'},
+    wolfGolden: {name:'Wolf', modifier:'Golden'},
+    wolfRed: {name:'Wolf', modifier:'Red'},
+    wolfShade: {name:'Wolf', modifier:'Shade'},
+    wolfSkeleton: {name:'Wolf', modifier:'Skeleton'},
+    wolfVeteran: {name:'Wolf', modifier:'Veteran'},
+    wolfWhite: {name:'Wolf', modifier:'White'},
+    wolfZombie: {name:'Wolf', modifier:'Zombie'}
+}
+
+/**
+  == Old Style ==
+    pet: Object
+        icon: "Pet-Wolf-White.png"
+        index: 14
+        name: "wolfWhite"
+        text: "White Wolf"
+        value: 3
+    pets: Object
+        bearcub: true
+        cactus: true
+
+  == New Style ==
+    currentPet: Object
+        modifier: "Red"
+        name: "Wolf"
+        notes: "Find some Hatching Powder to sprinkle on this egg, and one day it will hatch into a loyal pet."
+        str: "Wolf-Red"
+        text: "Wolf"
+        value: 3
+    pets: Array
+        0: "PandaCub-Base"
+        1: "Wolf-Base"
+ */
+
+
+db.users.find().forEach(function(user){
+    if (!user.items || (!user.items.pets && !user.items.pet)) return;
+
+    // migrate items.pet to items.currentPet
+    if (!!user.items.pet) {
+        var oldPet = user.items.pet,
+            mapped = mapping[oldPet.name];
+        user.items.currentPet = {
+            modifier: mapped.modifier,
+            name: mapped.name,
+            str: mapped.name + "-" + mapped.modifier,
+            text: '' // FIXME?
+        }
+        delete user.items.pet
+    }
+
+    // migrate items.pets
+    if (!!user.items.pets) {
+        var newPets = [];
+        _.each(user.items.pets, function(val, key){
+            if (_.isNumber(key)) throw "Error: User appears already migrated, this shouldn't be happening!"
+            newPets.push(mapping[key].name + "-" + mapping[key].modifier);
+        });
+        user.items.pets = newPets;
+    }
+
+    try {
+        db.users.update(
+            {_id:user._id},
+            {$set:
+                { 'items' : user.items }
+            },
+            {multi:true}
+        );
+    } catch(e) {
+        print(e);
+    }
+})