morphToMany column not found - laravel

Question

I follow tutorial from laravel documentation but it seems the tutorial not complete to explain argument morphToMany to explicit determine what the function should point to.
SQLSTATE[42S22]: Column not found: 1054 Unknown column
'tagables.tagables_id' in 'field list' (SQL: select tags.*,
tagables.tagables_id as pivot_tagables_id,
tagables.tag_tag_id as pivot_tag_tag_id,
tagables.tagables_type as pivot_tagables_type from tags inner
join tagables on tags.tag_id = tagables.tag_tag_id where
tagables.tagables_id = 1 and tagables.tagables_type =
App\Models\Comic)
media table
Schema::create('media', function (Blueprint $table) {
$table->mediumIncrements('media_id)->nullable(false);
$table->string('title', 255);
});
tags table // one row inside tag ( walking )
Schema::create('tags', function (Blueprint $table) {
$table->mediumIncrements('tag_id');
$table->string('tag_name', 255);
});
tagables table
Schema::create('tagables', function (Blueprint $table) {
$table->unsignedMediumInteger('tag_id')->nullable(false);
$table->unsignedMediumInteger('tagable_id')->nullable(false);
$table->string('tagable_type', 255)->nullable(false);
});
comic model
public function tags()
{
return $this->morphToMany(Tag::class, 'tagable');
}
comic controller
// insert new comic
$comic = Comic::create([
'title' => 'Doraemon',
]);
// Insert into tagables table with current comic id and bind to tag id 1
which is walking
$comic->tags->create([
'tag_id' => 1
]);
it succes to insert into media but failed to insert into tagables table.

Answer 1

I found some mistakes in your code. Please try to rewrite this code. There is a working example of your code. I have checked it for you
2021_04_10_073813_create_media_table.php
Schema::create('media', function (Blueprint $table) {
$table->id();
$table->string('name', 255);
$table->timestamps();
});
2021_04_10_073837_create_tags_table.php
Schema::create('tags', function (Blueprint $table) {
$table->id();
$table->string('name', 255);
$table->timestamps();
});
2021_04_10_073856_create_taggables_table.php
Schema::create('taggables', function (Blueprint $table) {
$table->id();
$table->unsignedMediumInteger('tag_id')->nullable(false);
$table->unsignedMediumInteger('taggable_id')->nullable(false);
$table->string('taggable_type');
$table->timestamps();
});
class Media extends Model
{
protected $guarded = [];
public function tags()
{
return $this->morphToMany(Tag::class, 'taggable');
}
}
class Tag extends Model
{
protected $guarded = [];
public function medias()
{
return $this->morphedByMany(Media::class, 'taggable');
}
}
And finally in a some Controller
$media = Media::create([
'name' => 'media name1',
]);
$tag = $media->tags()->create([
'name' => 'tag name1',
]);