here's my database schema
and I have these models:
Admin
User
Bet
Match
Team
I'm confused how to define the relationShip between matches and teams in models
here Is what I did till now...
User.php
public function bets()
{
return $this->hasMany('\App\Bet');
}
Bet.php
public function user()
{
return $this->belongsTo('\App\User');
}
public function match()
{
return $this->belongsTo('\App\Match');
}
Match.php
public function bets()
{
return $this->hasMany('\App\Bet');
}
//?????????????
Team.php
//?????????????
actually what I need Is the code that should be placed instead of //???... in both Team.php and Match.php so that I can easily do such things...
$team->matches();
$match->team1();
$match->team2();
thanks
It should be something like this:
Match.php
public function team1()
{
return $this->belongsTo('\App\Team', 'team1_id');
}
public function team2()
{
return $this->belongsTo('\App\Team', 'team2_id');
}
Team.php
public function matches()
{
return $this->hasMany('\App\Match', 'team1_id')
->orWhere('team2_id', $this->id);
}
You can specify which column should be targeted for each relationship:
public function team1() {
return $this->belongsTo('\App\Match', 'team1_id');
}
public function team2() {
return $this->belongsTo('\App\Match', 'team2_id');
}
Let me know if this helps.
It would be something like this. Give it a try.
Match.php
public function team1(){
return $this->belongsTo('App\Team', 'team1_id');
}
public function team2(){
return $this->belongsTo('App\Team', 'team2_id');
}
Team.php
public function matches1(){
return $this->hasMany('App\Match', 'team1_id', 'id');
}
public function matches2(){
return $this->hasMany('App\Match', 'team2_id', 'id');
}
Related
I am not able to paginate in laravel in this situation
return $this->hasMany('App\News','category_id')->orderBy('id','desc')->paginate(20);
but says error. in controller I have also tried
$byCategories=Category::findOrFail($id)->paginate(20);`
it also says error.
help me.
My Model is
class Category extends Model
{
public function news()
{
return $this->hasMany('App\News','category_id')->orderBy('id','desc');
}
public function newsMany()
{
return $this->belongsToMany('App\News')->paginate(20);
}
public function user()
{
return $this->belongsTo('App\User');
}
public function getRouteKeyName()
{
return 'slug';
}
}
another model one is
class News extends Model
{
public function user()
{
return $this->belongsTo('App\User');
}
public function category()
{
return $this->belongsTo('App\Category');
}
}
my controller code is
public function byCategory($id)
{
$byCategories=Category::findOrFail($id);
return view('back-end/news/byCategory', compact('byCategories'));
}
Thank you so much.
Pagination is not done in the Model
it is to be done in the controller, For example remove (->paginate(20);) from here
public function newsMany()
{
return $this->belongsToMany('App\News')->paginate(20);
}
keep it only as
public function newsMany()
{
return $this->belongsToMany('App\News');
}
and call the pagination in controller when returning the view
$news=Category::findOrFail($id)->newsMany()->paginate(20);
return view('view name', compact('news'));
I have two Classes: Share and related EquityGrant
I have this this math function in EquityGrant
public function share() //relationship
{
return $this->belongsTo(Share::class, 'share_id');
}
public function capitalCommitted() //my math function
{
return $this->share_price * $this->shares_amount;
}
But now I need to return in my Share class sum of capitalCommitted() function and here I'm stuck.
My Share class:
public function grants() //relationship
{
return $this->hasMany(EquityGrant::class);
}
public function totalIssued() //sum, works good
{
return $this->grants->sum('shares_amount');
}
public function totalCommitted() //Stuck here
{
//need help here, Must be like this: array_sum($this->grants->capitalCommitted());
}
Use this:
public function getCapitalCommittedAttribute()
{
return $this->share_price * $this->shares_amount;
}
public function totalCommitted()
{
return $this->grants->sum('capitalCommitted');
}
I have navbar with unknown levels of industries which can have child industries and I want to write recursive relationship to get the top one and show it as Category. I tried this:
public function category()
{
if($this->parent_id == 0){
return $this;
} else {
$this->parent_industry->category();
}
}
But I keep getting
LogicException: Relationship method must return an object of type Illuminate\Database\Eloquent\Relations\Relation
How to write recursive relationship and return $this?
Try this relations:
public function children()
{
return $this->hasMany('App\MenuItem', 'parent_id');
}
public function parent()
{
return $this->belongsTo('App\MenuItem', 'parent_id');
}
public function getRoot()
{
$cur = $this;
while ($cur->parent) {
$cur = $cur->parent;
}
return $cur;
}
Hi you can do this in an easy rather than using while
public function children()
{
return $this->hasMany('App\MenuItem', 'parent_id');
}
public function parent()
{
return $this->belongsTo('App\MenuItem', 'parent_id');
}
public function root()
{
if ($this->parent)
return $this->parent->root();
return $this;
}
Using recursion it is much simpler.
Hope this helps.
I am putting together a model of mine and I am wondering what is the most relevent method to use for something like "author".
I have:
public function images() {
return $this->morphMany('App\Models\Image', 'imageable');
}
public function ratings() {
return $this->hasMany('App\Models\Rating');
}
public function favorited() {
return $this->hasMany('App\Models\Favorite');
}
public function author() {
return $this->hasOne('User');
}
public function getMyFavoriteAttribute() {
return $this->favorited->where('user_id', Auth::user()->id)->count();
}
public function getFavoritesAttribute() {
return $this->favorited->count();
}
public function getRatingAttribute() {
return $this->ratings->sum('rating');
}
I have created a relationship called author as seen above. When would it be preferred to create this as a getAuthorAttribute?
get__Attribute is only necessary if you want to manipulate the original value of the stored attribute. Due to the fact that Author is already accessible through your relation it's not necessary to add an additional getter.
class Admin {
public function user()
{
return $this->morphOne('App\Models\User', 'humanable');
}
public function master()
{
return $this->hasOne('App\Models\Master');
}
}
class Master {
public function admin()
{
return $this->hasOne('App\Models\Admin');
}
}
class User {
public function humanable()
{
return $this->morphTo();
}
public function images()
{
return $this->hasOne('\App\Models\Image');
}
}
class Image {
public function user()
{
return $this->belongsTo('\App\Models\User');
}
}
Now if I dump this:
return \App\Models\Admin::where('id',1)->with(array('user.images','master'))->first();
I get the perfect result one master, one user and one image record.
But if I do this
return $user = \App\Models\User::where('id',1)->with(array('humanable','humanable.master'))->first();
I only get one Admin record, the query get * from masters doesn't even run.
Any idea what I'm doing wrong, I'm sure this is possible.
If I remember correctly Laravel has lots of pitfall. You can try to use the protected $with var in Admin model instead of query builder with function.
class Admin {
protected $with = ['master'];
public function user() {
return $this->morphOne('App\Models\User', 'humanable');
}
public function master() {
return $this->hasOne('App\Models\Master');
}
}
In query builder, only need to include humanable. Now you should see master inside the humanable object.
return $user = \App\Models\User::where('id',1)->with('humanable')->first();
Hope this help.