Remove unmatched criteria records from Eloquent collection - php

Question

I have some problems with Eloquent Eager Loading. I have added whereHas to remove the blog don't meet the comment criteria but the comment stills return empty array. My intention is to completely remove it from the json record.
How can I completely remove the json data chain that does not meet my condition?
My current code:
User::select("id", "name", "email")
->with(['blog', 'blog.author', 'blog.comments' => function ($query) {
$query->where('comment', 'John is here');
}, 'blog.comments.owner'])
->whereHas('blog.comments', function ($query) {
$query->where('comment', 'John is Here');
})
->get();
My current json output is:
{
"id": 1,
"name": "John Smith",
"email": "john.smith#hotmail.com",
"blog": [
{
"id": 1,
"created_at": "2021-04-09T18:08:06.000000Z",
"updated_at": "2021-04-09T10:33:03.000000Z",
"title": "First Blog",
"description": "Awesome",
"users_id": 1,
"cover": null,
"author": {
"id": 1,
"name": "John Smith",
"email": "john.smith#hotmail.com",
"email_verified_at": null,
"created_at": "2021-04-08T13:29:13.000000Z",
"updated_at": "2021-04-08T13:29:13.000000Z",
"role": 0
},
"comments": [
{
"id": 1,
"comment": "John is here",
"blog_id": 1,
"user_id": 1,
"created_at": null,
"updated_at": null,
"owner": {
"id": 1,
"name": "John Smith",
"email": "john.smith#hotmail.com",
"email_verified_at": null,
"created_at": "2021-04-08T13:29:13.000000Z",
"updated_at": "2021-04-08T13:29:13.000000Z",
"role": 0
}
}
]
},
{
"id": 6,
"created_at": "2021-04-12T07:41:43.000000Z",
"updated_at": "2021-04-12T08:01:18.000000Z",
"title": "Second Blog",
"description": "Awesome",
"users_id": 1,
"cover": "images/json_1618213303.png",
"author": {
"id": 1,
"name": "John Smith",
"email": "john.smith#hotmail.com",
"email_verified_at": null,
"created_at": "2021-04-08T13:29:13.000000Z",
"updated_at": "2021-04-08T13:29:13.000000Z",
"role": 0
},
"comments": []
}
]
}
My expected output would be:
{
"id": 1,
"name": "John Smith",
"email": "john.smith#hotmail.com",
"blog": [
{
"id": 1,
"created_at": "2021-04-09T18:08:06.000000Z",
"updated_at": "2021-04-09T10:33:03.000000Z",
"title": "First Blog",
"description": "Awesome",
"users_id": 1,
"cover": null,
"author": {
"id": 1,
"name": "John Smith",
"email": "john.smith#hotmail.com",
"email_verified_at": null,
"created_at": "2021-04-08T13:29:13.000000Z",
"updated_at": "2021-04-08T13:29:13.000000Z",
"role": 0
},
"comments": [
{
"id": 1,
"comment": "John is here",
"blog_id": 1,
"user_id": 1,
"created_at": null,
"updated_at": null,
"owner": {
"id": 1,
"name": "John Smith",
"email": "john.smith#hotmail.com",
"email_verified_at": null,
"created_at": "2021-04-08T13:29:13.000000Z",
"updated_at": "2021-04-08T13:29:13.000000Z",
"role": 0
}
}
]
}
]
}

Answer 1

Try this,
User::select("id", "name", "email")
->with([
'blog' => function ($query) {
$query->whereHas('comments', function ($query) {
$query->where('comment', 'John is Here');
});
},
'blog.comments' => function ($query) {
$query->where('comment', 'John is here');
},
'blog.author',
'blog.comments.owner'])
->get();
You should be applying the constraint on blog eager loading as well. Your query only filters comments of a blog