Build a Forum with Inertia and Laravel

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55. Adding the mentioned filter

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01. Introduction and demo

02. Getting set up

03. Modifying registration for usernames

04. Figuring out the forum layout

05. Creating and listing topics

06. Basic discussion listing

07. Pinning discussions

08. Tackling pagination in Inertia

09. Customising pagination text in Laravel

10. Showing a discussion

11. Setting up discussion posts

12. Listing through discussion posts

13. Adding more data to posts

14. Adding pagination to posts

15. Adding a post preview to discussions

16. Adding the last reply to discussions

17. Outputting discussion participants

18. Limiting participants in the UI

19. Ordering discussions by last post

20. Handling deleted users

21. Counting replies

22. Building our first filter

23. Highlighting current filters, and merging with pagination

24. Adding auth specific filters

25. Adding the topic filter

26. Scaffolding the new discussion form

27. Toggling the create discussion form

28. Keeping form state

29. Storing a new discussion

30. Discussion validation and authorization

31. Generating markdown for posts

32. Toggling the markdown preview

33. Fetching and displaying markdown

34. Adding a markdown shortcut toolbar

35. Dealing with SVG icons

36. Creating the reply form

37. Basic Inertia permission checking

38. Creating replies to discussions

39. Jumping to posts

40. Automatically scrolling to posts

41. Toggling post editing

42. Editing posts

43. Deleting posts

44. Deleting discussions

45. Setting up for best answers

46. Toggling the best discussion answer

47. Solved and unsolved filters

48. Indexing discussions for search

49. Searching discussions

50. Debouncing search

51. Adding mentionable functionality to forms

52. Indexing users for mentioning

53. Hooking up users for mentions

54. Detecting and storing mentioned users

55. Adding the mentioned filter

56. Adding mentions to the markdown toolbar

57. Adding mentions to the reply form

58. Fixing up some unauthenticated state

59. Fixing up post scrolling

60. Reviewing SSR (Server-side rendering)

61. Preventing parent posts from being deleted

62. Improving solution marking

Transcript

00:00

Now that we have our mentioned functionality complete, and we're actually hooking these up in the database, now what we can do is build out a mentioned filter

00:06

so we can filter our list of discussions by things we have been mentioned in, any posts that we've been mentioned in. So again, we're just going to follow the same thing,

00:16

and we're going to go ahead and create out another query filter. So let's grab any of these in here, and we will create out a mentioned query filter. And let's pop that in there and start to change this around.

00:31

So mentioned query filter. And for now, let's just do nothing in here. And why don't we go and hook this up to our forum index controller.

00:40

So this will be in our list of authenticated filters, mentioned, and mentioned query filter. Okay, great. So we'll hook this up to our navigation as well

00:51

while we're here. So just down here, let's say mentioned. Mentioned, and mentioned. Great.

01:02

So at the moment, when we select this, nothing happens because we're not actually building the query up, but now we can do this in here. So we're going to go ahead and say query.

01:12

And remember, we're working in the context of a discussion. So we're going to say where has posts. What that will allow us to do is drill further down into the posts relationship here,

01:24

and then create a condition on this. So now we can drill down into the mentions part of this functionality. So we get a new build, well, the same builder into here,

01:34

and then we can say query where has mentions, and then we can drill down into this as well. So now what we can do is say query where user ID equals the authenticated user's ID.

01:57

So basically in a discussion, look within posts, look within the mentions within them posts, and only return mentions that have that user in them. Let's go ahead and try this out.

02:09

So we'll go back to all discussions. We've got quite a few here. So let's click mentioned, and there we go. We know that we've been mentioned in this

02:17

because we just created it. We have technically been mentioned in others, but we didn't actually have this functionality to hook this up at that point.

Episode overview

In this episode, we build on the mentioned functionality we set up previously by adding a new "mentioned" filter to our discussions list. The goal is to let users easily see all discussions where they've been mentioned in any of the posts.

We start by creating a custom query filter for mentions, setting up the basic structure in our code. Then, we hook this filter into our forum index controller and navigation so that it appears as an option alongside other filters for authenticated users.

Next, we get into the logic: using nested whereHas conditions, we filter discussions to only show those where, within any post, the current user has been mentioned. After setting up the filtering logic, we test it out by selecting the mentioned filter and confirming that it works—showing discussions where we've been tagged.

By the end of the episode, you'll have a working mentioned filter in your discussions app, making it super easy for users to find posts and discussions that are relevant to them!

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