Laravel Eloquent ??? 5 ?? ?? ??? ?????. 1. ??? ?? Hasone ? Solgsto; 2. ???? Hasmany? Solgsto? ?????. 3. ??? ??? ?? ??? ???? ?? ???? ????. 4. ?? ??? hasmanythrough? ?????. ??? ??? Morphto? Morphmany? ?????. ? ??? ???? ??? ???? ?????. ??? ??? ??? ???? ???? ??? ?????? ????? ??????.

? ?? ?? ?? : ?? ???

Laravel? ???? ORM? ????? ??? PHP? ?????? ??? ?????. Laravel ?? ???? ???? ?? ??? ??, ?? ?? ?? ????? ??? ?? ???? ?? ???? ??? ?????. ? ???? ?? ???? ?? ??? ?? ??? ??? ??? ??? ?????.

1. ??? ??

???? ? ???? ?? ???? ??? ??? ???? ?????? ? ??? ??????.

? : User ??? Profile ????.

?????? ??

 // ??? ???
schema :: create ( 'user', function (blueprint $ table) {
    $ table-> id ();
    $ table-> String ( 'name');
    $ table-> string ( '???');
    $ table-> timestamps ();
});

// ???? ???
schema :: create ( 'profiles', function (blueprint $ table) {
    $ table-> id ();
    $ table-> forexid ( 'user_id')-> ranstreated ()-> ondelete ( 'cascade');
    $ table-> string ( 'Phone')-> nullable ();
    $ table-> text ( 'bio')-> nullable ();
    $ table-> timestamps ();
});

?? ??

 // user.php
?? ?? ??? ()
{
    return $ this-> hasone (profile :: class);
}

// profile.php
?? ?? ??? ()
{
    return $ this-> soldsto (user :: class);
}

??

 $ user = user :: find (1);
echo $ user-> profile-> bio;

// ?????? ???? ????
$ user-> profile ()-> create ([[
    '??'=> '123-456-7890',
    'bio'=> 'laravel ???'
]);

?? : hasOne ?? ?? ( profiles.user_id )?? ?? ?? ?????.

2. ??? ??

?? ???? ?? ?? ?????? ? ?????.

? : User ??? ?? Posts ????.

?????? ??

 // ??? ???
schema :: create ( 'posts', function (blueprint $ table) {
    $ table-> id ();
    $ table-> foraxid ( 'user_id')-> ranstreated ();
    $ table-> String ( 'title');
    $ table-> text ( 'body');
    $ table-> timestamps ();
});

?? ??

 // user.php
?? ?? ??? ()
{
    $ this-> hasmany (post :: class);
}

// post.php
?? ?? ??? ()
{
    return $ this-> soldsto (user :: class);
}

??

 $ user = user :: find (1);
foreach ($ user-> post as $ post) {
    echo $ post-> ??;
}

// ???? ????
$ user-> posts ()-> create ([[
    'title'=> '? ? ?? ???',
    'Body'=> 'Hello World'
]);

3. ??? ??

??? ?? ??? ?? ???? ?? ??? ? ?????. ?? ???? ?????.

? : User ?? Roles ? ??? Role ?? Users ?? ?? ? ????.

?????? ??

 // ?? ???
schema :: create ( '??', ?? (blueprint $ table) {
    $ table-> id ();
    $ table-> String ( 'name');
    $ table-> timestamps ();
});

// role_user pivot ??? (?? Role_Users ??)
schema :: create ( 'role_user', function (blueprint $ table) {
    $ table-> forexid ( 'user_id')-> ranstreated ()-> ondelete ( 'cascade');
    $ table-> forexiD ( 'role_id')-> ranstreated ()-> ondelete ( 'cascade');
    $ table-> primary ([ 'user_id', 'role_id']);
});

?? ??

 // user.php
?? ?? ?? ()
{
    return $ this-> soldstomany (?? :: class);
}

// ?? .php
?? ?? ??? ()
{
    return $ this-> soldstomany (user :: class);
}

??

 $ user = user :: find (1);
foreach ($ user-> ??? $ ??) {
    echo $ role-> name;
}

// ??? ?????
$ user-> roboles ()-> att

// ?? ??? (?? ??)
$ user-> roles ()-> sync ([1, 2, 3]);

// ?? ??? (? : ?? ??? ?? ?? ??)
$ user-> roles ()-> att

? : Laravel? ??? ???? ??? ?? ( role_user )? ?? ??? ??? ???? ?????. ? ?? ??? ???? ??? ??? ? ????.
belongsToMany(Role::class, 'user_roles')

4. ?? ?? ??? ????

?? ??? ?? ? ??? ?????? ?? ??????.

? : Country Users ?? ?? Posts ????.

?? ??

 // country.php
?? ?? ??? ()
{
    return $ this-> hasmanythrough (post :: class, user :: class);
}

?? :

• countries → users (Country_id) → posts (user_id)

??

 $ country = country :: find (1);
foreach ($ country-> ??? as $ post) {
    echo $ post-> ??;
}

5. ??? ??

??? ?? ??? ?? ??? ?? ??? ?? ??????.

? : Post ? User Image ?? ? ????.

?????? ??

 // ??? ???
schema :: create ( 'images', function (blueprint $ table) {
    $ table-> id ();
    $ table-> String ( 'url');
    $ table-> morphs ( 'imageable'); // imageable_type ? imagable_id? ????
    $ table-> timestamps ();
});

?? ??

 // image.php
?? ?? imagable ()
{
    return $ this-> morphto ();
}

// post.php
?? ?? ??? ()
{
    $ this-> morphmany (image :: class, 'Imagable');
}

// user.php
?? ?? ??? ()
{
    $ this-> morphmany (image :: class, 'Imagable');
}

??

 $ post = post :: find (1);
$ image = $ post-> images ()-> create ([ 'url'=> 'photo.jpg']);

// ???? ???? ????
$ image = image :: find (1);
$ ??? = $ image-> imageable; // ??? ?? ??? ????? ?????

??? : ??? ?? ? ??

??? ??? ?? ??? Laravel? ???? ??? ????.

 // ??? ?? ?? ?
return $ this-> soldsto (user :: class, 'author_id');

// ?? ??? ??? ?? ?? ?
return $ this-> setmentSto (user :: class, 'author_id', 'uuid');

?? ?? ??

???? ??? Laravel ??? ???? ???? ?????. ?? ( hasOne , hasMany ? belongsTo )?? ???? ?? ??? ?? belongsToMany ? ??? ???? ?????.

????? ???? ??? ? ? ???? ??? ??? ??? ?????.

? ??? Laravel Eloquent ?? ????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!