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hasManyThrough()
for the relation Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('email')->unique();
$table->string('password');
$table->integer('country_id')->unsigned();
$table->rememberToken();
$table->timestamps();
$table->foreign('country_id')->references('id')->on('countries')
->onDelete('cascade');
});
Schema::create('posts', function (Blueprint $table) {
$table->increments('id');
$table->string("name");
$table->integer('user_id')->unsigned();
$table->timestamps();
$table->foreign('user_id')->references('id')->on('users')
->onDelete('cascade');
});
Schema::create('countries', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->timestamps();
});
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Country extends Model
{
public function posts(){
return $this->hasManyThrough(
Post::class,
User::class,
'country_id',
'user_id',
'id',
'id'
);
}
}
$country = Country::find(1);
dd($country->posts);
morphMany()
and morphTo()
for relation.Schema::create('posts', function (Blueprint $table) {
$table->increments('id');
$table->string("name");
$table->timestamps();
});
Videos TableSchema::create('videos', function (Blueprint $table) {
$table->increments('id');
$table->string("name");
$table->timestamps();
});
Comments TableSchema::create('comments', function (Blueprint $table) {
$table->increments('id');
$table->string("body");
$table->integer('commentable_id');
$table->string("commentable_type");
$table->timestamps();
});
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
public function comments(){
return $this->morphMany(Comment::class, 'commentable');
}
}
Video Model<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Video extends Model{
public function comments(){
return $this->morphMany(Comment::class, 'commentable');
}
}
Comment Model<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Comment extends Model{
public function commentable(){
return $this->morphTo();
}
}
$post = Post::find(1);
$comment = new Comment;
$comment->body = "Hi Harikrishnan";
$post->comments()->save($comment);
$video = Video::find(1);
$comment = new Comment;
$comment->body = "Hi Harikrishnan";
$video->comments()->save($comment);
$post = Post::find(1);
dd($post->comments);
$video = Video::find(1);
dd($video->comments);
morphToMany()
and morphedByMany()
will be used for many to many polymorphic relationshipsSchema::create('posts', function (Blueprint $table) {
$table->increments('id');
$table->string("name");
$table->timestamps();
});
Videos TableSchema::create('videos', function (Blueprint $table) {
$table->increments('id');
$table->string("name");
$table->timestamps();
});
Tags tableSchema::create('tags', function (Blueprint $table) {
$table->increments('id');
$table->string("name");
$table->timestamps();
});
Taggables tableSchema::create('taggables', function (Blueprint $table) {
$table->integer("tag_id");
$table->integer("taggable_id");
$table->string("taggable_type");
});
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
public function tags(){
return $this->morphToMany(Tag::class, 'taggable');
}
}
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Video extends Model
{
public function tags(){
return $this->morphToMany(Tag::class, 'taggable');
}
}
Tag Model<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Tag extends Model
{
public function posts(){
return $this->morphedByMany(Post::class, 'taggable');
}
public function videos(){
return $this->morphedByMany(Video::class, 'taggable');
}
}
Creating Records$post = Post::find(1);
$tag = new Tag;
$tag->name = "Hi Harikrishnan";
$post->tags()->save($tag);
$video = Video::find(1);
$tag = new Tag;
$tag->name = "Vishnu";
$video->tags()->save($tag);
$post = Post::find(1);
$tag1 = new Tag;
$tag1->name = "Kerala Blasters";
$tag2 = new Tag;
$tag2->name = "Manajapadda";
$post->tags()->saveMany([$tag1, $tag2]);
$video = Video::find(1);
$tag1 = new Tag;
$tag1->name = "Kerala Blasters";
$tag2 = new Tag;
$tag2->name = "Manajappada";
$video->tags()->saveMany([$tag1, $tag2]);
$post = Post::find(1);
$tag1 = Tag::find(3);
$tag2 = Tag::find(4);
$post->tags()->attach([$tag1->id, $tag2->id]);
$video = Video::find(1);
$tag1 = Tag::find(3);
$tag2 = Tag::find(4);
$video->tags()->attach([$tag1->id, $tag2->id]);
$post = Post::find(1);
$tag1 = Tag::find(3);
$tag2 = Tag::find(4);
$post->tags()->sync([$tag1->id, $tag2->id]);
$video = Video::find(1);
$tag1 = Tag::find(3);
$tag2 = Tag::find(4);
$video->tags()->sync([$tag1->id, $tag2->id]);
$post = Post::find(1);
dd($post->tags);
$video = Video::find(1);
dd($video->tags)
$tag = Tag::find(1);
dd($tag->posts);
$tag = Tag::find(1);
dd($tag->videos);
$student = student::join(‘marks’,’marks.student_id,’=’,students.id’)->where(‘students.id’,’1’)->get();
dd($student);
$student_marks = student::find(1);
dd($student_marks->mark1);
hasone()
and belongsto()
.Schema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('email')->unique();
$table->string('password');
$table->rememberToken();
$table->timestamps();
});
Schema::create('phones', function (Blueprint $table) {
$table->increments('id');
$table->integer('user_id')->unsigned();
$table->string('phone');
$table->timestamps();
$table->foreign('user_id')->references('id')->on('users')
->onDelete('cascade');
});
<?php
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
use Notifiable;
protected $fillable = [
'name', 'email', 'password',
];
protected $hidden = [
'password', 'remember_token',
];
public function phone()
{
return $this->hasOne('App\Phone');
}
}
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Phone extends Model
{
public function user()
{
return $this->belongsTo('App\User');
}
}
$user = User::find(1);
$phone = new Phone;
$phone->phone = '9080054945';
$user->phone()->save($phone);
$phone = Phone::find(1);
$user = User::find(10);
$phone->user()->associate($user)->save();
$phone = User::find(1)->phone;
dd($phone);
$user = Phone::find(1)->user;
dd($user);
hasMany()
and belongsTo()
for relationshipsSchema::create('posts', function (Blueprint $table) {
$table->increments('id');
$table->string("name");
$table->timestamps();
});
Schema::create('comments', function (Blueprint $table) {
$table->increments('id');
$table->integer('post_id')->unsigned();
$table->string("comment");
$table->timestamps();
$table->foreign('post_id')->references('id')->on('posts')
->onDelete('cascade');
});
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Post extends Model
{
public function comments()
{
return $this->hasMany(Comment::class);
}
}
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Comment extends Model
{
public function post()
{
return $this->belongsTo(Post::class);
}
}
$post = Post::find(1);
$comment = new Comment;
$comment->comment = "Hi Harikrishnan";
$post = $post->comments()->save($comment);
$post = Post::find(1);
$comment1 = new Comment;
$comment1->comment = "How are You?";
$comment2 = new Comment;
$comment2->comment = "Where are you?";
$post = $post->comments()->saveMany([$comment1, $comment2]);
$comment = Comment::find(1);
$post = Post::find(2);
$comment->post()->associate($post)->save();
$post = Post::find(1);
$comments = $post->comments;
dd($comments);
$comment = Comment::find(1);
$post = $comment->post;
dd($post);
belongsToMany()
we will use see a demo of Many to many relationshipSchema::create('users', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->string('email')->unique();
$table->string('password');
$table->rememberToken();
$table->timestamps();
});
Schema::create('roles', function (Blueprint $table) {
$table->increments('id');
$table->string('name');
$table->timestamps();
});
Schema::create('role_user', function (Blueprint $table) {
$table->integer('user_id')->unsigned();
$table->integer('role_id')->unsigned();
$table->foreign('user_id')->references('id')->on('users')
->onDelete('cascade');
$table->foreign('role_id')->references('id')->on('roles')
->onDelete('cascade');
});
<?php
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
use Notifiable;
protected $fillable = [
'name', 'email', 'password',
];
protected $hidden = [
'password', 'remember_token',
];
public function roles()
{
return $this->belongsToMany(Role::class, 'role_user');
}
}
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class Role extends Model
{
public function users()
{
return $this->belongsToMany(User::class, 'role_user');
}
}
<?php
namespace App;
use Illuminate\Database\Eloquent\Model;
class UserRole extends Model
{
}
$user = User::find(2);
$roleIds = [1, 2];
$user->roles()->attach($roleIds);
$user = User::find(3);
$roleIds = [1, 2];
$user->roles()->sync($roleIds);
$role = Role::find(1);
$userIds = [10, 11];
$role->users()->attach($userIds);
$role = Role::find(2);
$userIds = [10, 11];
$role->users()->sync($userIds);
$user = User::find(1);
dd($user->roles);
$role = Role::find(1);
dd($role->users);
<?php
namespace App;
use App\Comment;
use App\CommentVote;
use App\CommentSpam;
use App\User;
use Auth;
class CommentModel
{
}
?>
public function getAllComments($pageId)
{
$comments = Comment::where('page_id',$pageId)->get();
$commentsData = [];
foreach ($comments as $key) {
$user = User::find($key->users_id);
$name = $user->name;
$replies = $this->replies($key->id);
$photo = $user->first()->photo_url;
$reply = 0;
$vote = 0;
$voteStatus = 0;
$spam = 0;
if(Auth::user()){
$voteByUser = CommentVote::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
$spamComment = CommentSpam::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
if($voteByUser){
$vote = 1;
$voteStatus = $voteByUser->vote;
}
if($spamComment){
$spam = 1;
}
}
if(sizeof($replies) > 0){
$reply = 1;
}
if(!$spam){
array_push($commentsData,[
"name" => $name,
"photo_url" => (string)$photo,
"commentid" => $key->id,
"comment" => $key->comment,
"votes" => $key->votes,
"reply" => $reply,
"votedByUser" =>$vote,
"vote" =>$voteStatus,
"spam" => $spam,
"replies" => $replies,
"date" => $key->created_at->toDateTimeString()
]);
}
}
$collection = collect($commentsData);
return $collection->sortBy('votes');
}
protected function replies($commentId)
{
$comments = Comment::where('reply_id',$commentId)->get();
$replies = [];
foreach ($comments as $key) {
$user = User::find($key->users_id);
$name = $user->name;
$photo = $user->first()->photo_url;
$vote = 0;
$voteStatus = 0;
$spam = 0;
if(Auth::user()){
$voteByUser = CommentVote::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
$spamComment = CommentSpam::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
if($voteByUser){
$vote = 1;
$voteStatus = $voteByUser->vote;
}
if($spamComment){
$spam = 1;
}
}
if(!$spam){
array_push($replies,[
"name" => $name,
"photo_url" => $photo,
"commentid" => $key->id,
"comment" => $key->comment,
"votes" => $key->votes,
"votedByUser" => $vote,
"vote" => $voteStatus,
"spam" => $spam,
"date" => $key->created_at->toDateTimeString()
]);
}
}
$collection = collect($replies);
return $collection->sortBy('votes');
}
public function createComment($arary)
{
$comment = Comment::create($array);
if($comment)
return [ "status" => "true","commentId" => $comment->id ];
else
return [ "status" => "false" ];
}
<?php
namespace App;
use App\Comment;
use App\CommentSpam;
use App\CommentVote;
use App\User;
use Auth;
class CommentModel
{
public function getAllComments($pageId)
{
$comments = Comment::where('page_id', $pageId)->get();
$commentsData = [];
foreach ($comments as $key) {
$user = User::find($key->users_id);
$name = $user->name;
$replies = $this->replies($key->id);
$photo = $user->first()->photo_url;
$reply = 0;
$vote = 0;
$voteStatus = 0;
$spam = 0;
if (Auth::user()) {
$voteByUser = CommentVote::where('comment_id', $key->id)->where('user_id', Auth::user()->id)->first();
$spamComment = CommentSpam::where('comment_id', $key->id)->where('user_id', Auth::user()->id)->first();
if ($voteByUser) {
$vote = 1;
$voteStatus = $voteByUser->vote;
}
if ($spamComment) {
$spam = 1;
}
}
if (sizeof($replies) > 0) {
$reply = 1;
}
if (!$spam) {
array_push($commentsData, [
"name" => $name,
"photo_url" => (string) $photo,
"commentid" => $key->id,
"comment" => $key->comment,
"votes" => $key->votes,
"reply" => $reply,
"votedByUser" => $vote,
"vote" => $voteStatus,
"spam" => $spam,
"replies" => $replies,
"date" => $key->created_at->toDateTimeString(),
]);
}
}
$collection = collect($commentsData);
return $collection->sortBy('votes');
}
protected function replies($commentId)
{
$comments = Comment::where('reply_id', $commentId)->get();
$replies = [];
foreach ($comments as $key) {
$user = User::find($key->users_id);
$name = $user->name;
$photo = $user->first()->photo_url;
$vote = 0;
$voteStatus = 0;
$spam = 0;
if (Auth::user()) {
$voteByUser = CommentVote::where('comment_id', $key->id)->where('user_id', Auth::user()->id)->first();
$spamComment = CommentSpam::where('comment_id', $key->id)->where('user_id', Auth::user()->id)->first();
if ($voteByUser) {
$vote = 1;
$voteStatus = $voteByUser->vote;
}
if ($spamComment) {
$spam = 1;
}
}
if (!$spam) {
array_push($replies, [
"name" => $name,
"photo_url" => $photo,
"commentid" => $key->id,
"comment" => $key->comment,
"votes" => $key->votes,
"votedByUser" => $vote,
"vote" => $voteStatus,
"spam" => $spam,
"date" => $key->created_at->toDateTimeString(),
]);
}
}
$collection = collect($replies);
return $collection->sortBy('votes');
}
public function createComment($arary)
{
$comment = Comment::create($array);
if ($comment) {
return ["status" => "true", "commentId" => $comment->id];
} else {
return ["status" => "false"];
}
}
public function voteComment($commentId, $array)
{
$comments = Comment::find($commentId);
$data = [
"comment_id" => $commentId,
'vote' => $array->vote,
'user_id' => $array->users_id,
];
if ($array->vote == "up") {
$comment = $comments->first();
$vote = $comment->votes;
$vote++;
$comments->votes = $vote;
$comments->save();
}
if ($array->vote == "down") {
$comment = $comments->first();
$vote = $comment->votes;
$vote--;
$comments->votes = $vote;
$comments->save();
}
if (CommentVote::create($data)) {
return true;
}
}
public function spamComment($commentId, $array)
{
$comments = Comment::find($commentId);
$comment = $comments->first();
$spam = $comment->spam;
$spam++;
$comments->spam = $spam;
$comments->save();
$data = [
"comment_id" => $commentId,
'user_id' => $array->users_id,
];
if (CommentSpam::create($data)) {
return true;
}
}
}
?>
<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Http\Requests;
use App\Comment;
use App\CommentVote;
use App\CommentSpam;
use App\User;
use Auth;
class CommentController extends Controller
{
public function index($pageId)
{
$comments = Comment::where('page_id',$pageId)->get();
$commentsData = [];
foreach ($comments as $key) {
$user = User::find($key->users_id);
$name = $user->name;
$replies = $this->replies($key->id);
$photo = $user->first()->photo_url;
$reply = 0;
$vote = 0;
$voteStatus = 0;
$spam = 0;
if(Auth::user()){
$voteByUser = CommentVote::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
$spamComment = CommentSpam::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
if($voteByUser){
$vote = 1;
$voteStatus = $voteByUser->vote;
}
if($spamComment){
$spam = 1;
}
}
if(sizeof($replies) > 0){
$reply = 1;
}
if(!$spam){
array_push($commentsData,[
"name" => $name,
"photo_url" => (string)$photo,
"commentid" => $key->id,
"comment" => $key->comment,
"votes" => $key->votes,
"reply" => $reply,
"votedByUser" =>$vote,
"vote" =>$voteStatus,
"spam" => $spam,
"replies" => $replies,
"date" => $key->created_at->toDateTimeString()
]);
}
}
$collection = collect($commentsData);
return $collection->sortBy('votes');
}
protected function replies($commentId)
{
$comments = Comment::where('reply_id',$commentId)->get();
$replies = [];
foreach ($comments as $key) {
$user = User::find($key->users_id);
$name = $user->name;
$photo = $user->first()->photo_url;
$vote = 0;
$voteStatus = 0;
$spam = 0;
if(Auth::user()){
$voteByUser = CommentVote::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
$spamComment = CommentSpam::where('comment_id',$key->id)->where('user_id',Auth::user()->id)->first();
if($voteByUser){
$vote = 1;
$voteStatus = $voteByUser->vote;
}
if($spamComment){
$spam = 1;
}
}
if(!$spam){
array_push($replies,[
"name" => $name,
"photo_url" => $photo,
"commentid" => $key->id,
"comment" => $key->comment,
"votes" => $key->votes,
"votedByUser" => $vote,
"vote" => $voteStatus,
"spam" => $spam,
"date" => $key->created_at->toDateTimeString()
]);
}
}
$collection = collect($replies);
return $collection->sortBy('votes');
}
public function store(Request $request)
{
$this->validate($request, [
'comment' => 'required',
'reply_id' => 'filled',
'page_id' => 'filled',
'users_id' => 'required',
]);
$comment = Comment::create($request->all());
if($comment)
return [ "status" => "true","commentId" => $comment->id ];
}
public function update(Request $request, $commentId,$type)
{
if($type == "vote"){
$this->validate($request, [
'vote' => 'required',
'users_id' => 'required',
]);
$comments = Comment::find($commentId);
$data = [
"comment_id" => $commentId,
'vote' => $request->vote,
'user_id' => $request->users_id,
];
if($request->vote == "up"){
$comment = $comments->first();
$vote = $comment->votes;
$vote++;
$comments->votes = $vote;
$comments->save();
}
if($request->vote == "down"){
$comment = $comments->first();
$vote = $comment->votes;
$vote--;
$comments->votes = $vote;
$comments->save();
}
if(CommentVote::create($data))
return "true";
}
if($type == "spam"){
$this->validate($request, [
'users_id' => 'required',
]);
$comments = Comment::find($commentId);
$comment = $comments->first();
$spam = $comment->spam;
$spam++;
$comments->spam = $spam;
$comments->save();
$data = [
"comment_id" => $commentId,
'user_id' => $request->users_id,
];
if(CommentSpam::create($data))
return "true";
}
}
public function destroy($id)
{
}
}?>
<?php
namespace App\Http\Controllers;
use App\CommentModel;
use Illuminate\Http\Request;
class CommentController extends Controller
{
private $commentModel = null;
private function __construct()
{
$this->commentModel = new CommentModel();
}
public function index($pageId)
{
return $this->commentModel->getAllComments($pageId);
}
public function store(Request $request)
{
$this->validate($request, [
'comment' => 'required',
'reply_id' => 'filled',
'page_id' => 'filled',
'users_id' => 'required',
]);
return $this->commentModel->createComment($request->all());
}
public function update(Request $request, $commentId, $type)
{
if ($type == "vote") {
$this->validate($request, [
'vote' => 'required',
'users_id' => 'required',
]);
return $this->commentModel->voteComment($commentId, $request->all());
}
if ($type == "spam") {
$this->validate($request, [
'users_id' => 'required',
]);
return $this->commentModel->spamComment($commentId, $request->all());
}
}
}
?>