Mutation adds status

[MrOrz]

Update mutation APIs for ArticleReply, ArticleReplyFeedback, ReplyRequest, ArticleCategory, ArticleCategoryFeedback so that statuses can be filled in according to currently logged-in user is blocked or not

• util/user update:
  • make assertUser accept user from GraphQL context
    • adjust related unit tests to rely on user in GraphQL context instead, which also simplifies resolver logic
  • add isUserBlocked tell if current user in GraphQL context is blocked
  • add getContentDefaultStatus that generates status value for the contents generated by the user in GraphQL context
• ArticleReplyFeedback updates:
  • CreateOrUpdateArticleReplyFeedback uses user in GraphQL context and sets status of new article-reply accordingly
• ArticleCategoryFeedback updates:
  • CreateOrUpdateArticleCategoryFeedback uses user in GraphQL context and sets status of new article-reply accordingly
• ReplyRequest updates:
  • createOrUpdateReplyRequest() function takes user and sets status of new reply requests accordingly
    • do not update replyRequestCount & lastRequestedAt in article if the status is BLOCKED
    • CreateOrUpdateReplyRequest resolver is updated due to use of createArticleReply()
• ArticleReply updates:
  • createArticleReply() function takes user and sets status of new article-reply accordingly
    • CreateArticleReply & CreateReply resolver is updated due to use of createArticleReply()
  • Expose userId and appId field for easier unit tests
  • canUpdateStatus & ownVote uses user in GraphQL context
    • CreateArticle and GetArticle tests are modified to provide mock user instead of userId / appId
  • UpdateArticleReplyStatus restores deleted article-replies to "BLOCKED" state if the user is blocked
  • Add BLOCKED value in ArticleReplyStatusEnum
• ArticleCategory updates:
  • Expose userId and appId field for easier unit tests
  • ownVote uses user in GraphQL context
  • CreateArticleCategory restores deleted article-replies to "BLOCKED" state if the user is blocked
  • Add BLOCKED value in ArticleCategoryStatusEnum

[coveralls]

Coverage increased (+0.1%) to 86.193% when pulling 9cc083853b077a1f01468bb1bf9fa9991490918a on mutation-adds-status into 5e1fbd126ffc46a0f6b0e54009599b6321e81ab7 on master.