Address missing history issue

* When photo history is accessed, show upload time with notification
  that some history is missing.
* When editing a photo with missing history, add first history record
  with upload time and notification that some history is missing.

Fixes #631

Author: kabalin

app/errors/constants.js

@@ -91,8 +91,6 @@ export default Utils.reflectKeys({
     CONVERT_PHOTOS_ALL: null,
     CONVERT_PROMISE_GENERATOR: null,
 
-    HISTORY_DOESNT_EXISTS: null,
-
     SETTING_DOESNT_EXISTS: null,
 
     MAIL_SEND: null,

app/errors/intl.js

@@ -87,8 +87,6 @@ export default {
     CONVERT_PHOTOS_ALL: 'Ошибка отправки на конвертацию',
     CONVERT_PROMISE_GENERATOR: 'Ошибка выполнения операции в конвейере конвертации',
 
-    HISTORY_DOESNT_EXISTS: 'Для объекта еще нет истории',
-
     SETTING_DOESNT_EXISTS: 'Такой настройки не существует',
 
     MAIL_SEND: 'Ошибка отправки письма',

controllers/photo.js

@@ -792,6 +792,12 @@ async function saveHistory({ oldPhotoObj, photo, canModerate, reason, parsedFile
             add: undefined,
             del: undefined,
         }];
+
+        if (oldPhotoObj.s > 0) {
+            // Photo was added before history functionality. Make intial record
+            // reflect upload time.
+            histories[0].values = { s: 0, histmissing: 1 };
+        }
     }
 
     const lastFieldsIndexes = histories.reduce((result, historyEntry, historyIndex) => {
@@ -3195,12 +3201,20 @@ async function giveObjHist({ cid, fetchId, showDiff }) {
         historySelect.diff = 0;
     }
 
-    const histories = await PhotoHistory
+    let histories = await PhotoHistory
         .find({ cid }, historySelect, { lean: true, sort: { stamp: 1 } })
         .populate({ path: 'user', select: { _id: 0, login: 1, avatar: 1, disp: 1 } }).exec();
 
     if (_.isEmpty(histories)) {
-        throw new NoticeError(constantsError.HISTORY_DOESNT_EXISTS);
+        // This is workaround for old photos that did not have history. When
+        // this old photo is editied the first time, proper history record will be created.
+        const user = await User.findOne({ _id: photo.user }, { _id: 0, login: 1, avatar: 1, disp: 1 }).exec();
+
+        histories = [{
+            user,
+            stamp: photo.ldate,
+            values: { s: 0, histmissing: 1 },
+        }];
     }
 
     const reasons = new Set();

views/module/photo/hist.pug

@@ -65,6 +65,12 @@
                 | Комментирование {{?h.values.nocomments}}запрещено{{??}}разрешено{{?}}
             | {{?}}
 
+            | {{?h.values.histmissing}}
+            .info.iconed.red
+                span.glyphicon(class="glyphicon-floppy-remove")
+                | Доступна не вся история изменений
+            | {{?}}
+
             | {{?h.reason}}
             .value
                 .name Причина
@@ -86,4 +92,4 @@
             | {{~}}
 
     | {{~}}
-    | </script>
+    | </script>