add functional endpoint for update campaign and unhappy frontend processing

api/apib/dredd/data/campaign.json

@@ -1,2 +1,3 @@
 {"_id":{"$oid":"5abd55ea9e30a76bfef747d6"},"title":"Ein Kessel Buntes","timestamp":{"$date":"2018-03-29T21:08:58.123Z"},"updatedAt":{"$date":"2018-03-29T21:08:58.123Z"},"__v":0}
 {"_id":{"$oid":"5abd58989e30a76bfef747e6"},"title":"This Is The End","timestamp":{"$date":"2018-03-29T21:20:24.558Z"},"updatedAt":{"$date":"2018-03-29T21:20:24.558Z"},"__v":0}
+{"_id":{"$oid":"5abd58es9e30a76bfef347e4"},"title":"Edit me","timestamp":{"$date":"2018-03-29T21:20:24.558Z"},"updatedAt":{"$date":"2018-03-29T21:20:24.558Z"},"__v":0}

api/apib/statistics/campaigns.apib

@@ -24,6 +24,25 @@ Create a new campaign
 
     + Attributes (Campaign, fixed-type)
 
+### Update Campaign [PUT /campaigns/{id}]
+
+Update a campaign, identified by its id
+
+**Permission: 3**
+
++ Parameters
+    + id: `5abd58es9e30a76bfef347e4` (string, required) - unique id of campaign
+
++ Request (application/json)
+
+    + Attributes
+        + _id: `5abd58es9e30a76bfef347e4` (string, required) - unique id of campaign
+        + title: `Operation Pandora` (string, optional) - display name of the campaign
+
++ Response 200 (application/json; charset=utf-8)
+
+    + Attributes (Campaign, fixed-type)
+
 ### Delete Campaign [DELETE /campaigns/{id}]
 
 Delete a campaign

api/routes/campaigns.js

@@ -16,12 +16,10 @@ const idValidator = require('../middleware/validators').idValidator;
 const CampaignModel = require('../models/campaign');
 const WarModel = require('../models/war');
 
-
 const campaigns = new express.Router();
 
 // routes **********************
 campaigns.route('/')
-
          .post(apiAuthenticationMiddleware, checkMT, (req, res, next) => {
            const campaign = new CampaignModel(req.body);
            // timestamp and default are set automatically by Mongoose Schema Validation
@@ -57,6 +55,37 @@ campaigns.route('/:id')
            });
          })
 
+         .patch(apiAuthenticationMiddleware, checkMT, (req, res, next) => {
+           if (!req.body || (req.body._id && req.body._id !== req.params.id)) {
+             // little bit different as in PUT. :id does not need to be in data, but if the _id and url id must match
+             const err = new Error('id of PATCH resource and send JSON body are not equal ' + req.params.id + ' ' +
+               req.body._id);
+             err.status = codes.notfound;
+             next(err);
+             return; // prevent node to process this function further after next() has finished.
+           }
+
+           req.body.updatedAt = new Date();
+           req.body.$inc = { __v: 1 };
+           if (req.body.hasOwnProperty('__v')) {
+             delete req.body.__v;
+           }
+
+           // PATCH is easier with mongoose than PUT. You simply update by all data that comes from outside. no need to
+           // reset attributes that are missing.
+           CampaignModel.findByIdAndUpdate(req.params.id, req.body, { new: true }, (err, item) => {
+             if (err) {
+               err.status = codes.wrongrequest;
+             } else if (!item) {
+               err = new Error('item not found');
+               err.status = codes.notfound;
+             } else {
+               res.locals.items = item;
+             }
+             next(err);
+           });
+         })
+
          .delete((req, res, next) => {
            CampaignModel.findByIdAndRemove(req.params.id, (err, item) => {
              if (err) {

static/src/app/services/logs/campaign.service.ts

@@ -19,7 +19,8 @@ export class CampaignService {
 
   submitCampaign(campaign: Campaign) {
     if (campaign._id) {
-      return this.http.patch(this.config.apiCampaignPath + '/' + campaign._id, campaign);
+      return this.http.patch(this.config.apiCampaignPath + '/' + campaign._id, campaign)
+                 .map(res => res.json());
     } else {
       return this.http.post(this.config.apiCampaignPath, campaign)
                  .map(res => res.json());

static/src/app/statistic/campaign-submit/campaign-submit.component.ts

@@ -39,7 +39,11 @@ export class CampaignSubmitComponent {
   saveCampaign() {
     this.campaignService.submitCampaign(this.campaign)
         .subscribe(campaign => {
-            this.router.navigate(['../overview/' + campaign._id], {relativeTo: this.route});
+            let redirectSuccessUrl = '../overview/';
+            if (this.campaign._id) {
+              redirectSuccessUrl = '../' + redirectSuccessUrl
+            }
+            this.router.navigate([redirectSuccessUrl + campaign._id], {relativeTo: this.route});
           },
           error => {
             this.error = error._body.error.message;