Don't allow negative pokemon/eggs given away (#597)

* Update Reference.js

* Add files via upload

* Add files via upload

* Add files via upload

* Update editreference.ejs

* Update index.ejs

* Update ReferenceController.js

* Changed 6 spaces to 4 due to Travis check

* Update ReferenceController.js

* Another attempt to pass Travis check

* Unnecessary comment removed

* Comment removed

Author: robdy

api/controllers/ReferenceController.js

@@ -53,10 +53,18 @@ module.exports = {
     if (req.params.number && isNaN(req.params.number)) {
       return res.badRequest({err: "Number must be a number"});
     }
+     
+    if (req.params.number < 0) {
+      return res.badRequest({err: "Number must be 0 or more"});
+    }
+    
     return Reference.findOne({url: {endsWith: endOfUrl}, user: req.user.name}).then(ref => {
       if (ref && !(ref.type === 'egg' && req.params.type === 'egg')) {
         return res.status(400).json({err: 'Already added that URL.'});
       }
+      
+
+
       return Reference.create({
         url: req.params.url,
         user: req.user.name,
@@ -78,6 +86,11 @@ module.exports = {
     if (req.params.number && isNaN(req.params.number)) {
       return res.badRequest({err: "Number must be a number"});
     }
+
+    if (req.params.number < 0) {
+      return res.badRequest({err: "Number must be 0 or more"});
+    }
+
     Reference.findOne({id: req.params.id, user: req.user.name}).exec(function (err, ref) {
       if (err || !ref) {
         return res.notFound();

api/models/Reference.js

@@ -18,6 +18,7 @@ module.exports = {
     description: "string",
     number: {
       type: "integer",
+      min: 0,
       required: false
     },
     type: {

assets/views/home/editreference.ejs

@@ -61,7 +61,7 @@
 
               <div class="col-md-8">
                 <input type="number" class="form-control"
-                       ng-model="selectedRef.number"></input>
+                       ng-model="selectedRef.number" min="0"></input>
               </div>
             </div>
 

assets/views/home/index.ejs

@@ -58,7 +58,7 @@
 
           <ng-tooltip data-label="Number given" ng-show="hasNumber(addInfo.type)"
                       title="How many you gave away. This can be updated.">
-              <input type="number" class="form-control" ng-model="addInfo.number">
+              <input type="number" class="form-control" ng-model="addInfo.number" min="0">
           </ng-tooltip>
 
           <ng-tooltip data-label="Gave" ng-hide="isNotNormalTrade(addInfo.type)"