Add basic clientside validation for polls

src/components/poll/poll_form.js

@@ -1,4 +1,5 @@
 import * as DateUtils from 'src/services/date_utils/date_utils.js'
+import { uniq } from 'lodash'
 
 export default {
   name: 'PollForm',
@@ -105,8 +106,13 @@ export default {
         this.expiryAmount
       )
 
+      const options = uniq(this.options.filter(option => option !== ''))
+      if (options.length < 2) {
+        this.$emit('update-poll', { error: this.$t('polls.not_enough_options') })
+        return
+      }
       this.$emit('update-poll', {
-        options: this.options,
+        options,
         multiple: this.pollType === 'multiple',
         expiresIn
       })

src/components/post_status_form/post_status_form.js

@@ -193,6 +193,11 @@ const PostStatusForm = {
     },
     hideScopeNotice () {
       return this.$store.state.config.hideScopeNotice
+    },
+    pollContentError () {
+      return this.pollFormVisible &&
+        this.newStatus.poll &&
+        this.newStatus.poll.error
     }
   },
   methods: {
@@ -261,6 +266,10 @@ const PostStatusForm = {
       }
 
       const poll = this.pollFormVisible ? this.newStatus.poll : {}
+      if (this.pollContentError) {
+        this.error = this.pollContentError
+        return
+      }
 
       this.posting = true
       statusPoster.postStatus({

src/i18n/en.json

@@ -102,7 +102,8 @@
     "multiple_choices": "Multiple choices",
     "expiry": "Poll age",
     "expires_in": "Ends in {0}",
-    "expired": "Poll ended {0} ago"
+    "expired": "Poll ended {0} ago",
+    "not_enough_options": "Too few unique options in poll"
   },
   "interactions": {
     "favs_repeats": "Repeats and Favorites",

src/i18n/fi.json

@@ -66,7 +66,8 @@
     "multiple_choices": "Monivalinta",
     "expiry": "Äänestyksen kesto",
     "expires_in": "Päättyy {0} päästä",
-    "expired": "Päättyi {0} sitten"
+    "expired": "Päättyi {0} sitten",
+    "not_enough_option": "Liian vähän uniikkeja vaihtoehtoja äänestyksessä"
   },
   "interactions": {
     "favs_repeats": "Toistot ja tykkäykset",