Mixing
Laravel get models two descendant levels via pivot tables
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I am using Laravel v4.1... yes I know it is old. My question is how to set up my models & go about getting related models that are "two" levels away & associated by two pivot tables.
For example...
My database tables:
firsts:
id name
== =============
1 lorem
2 ipsum
seconds:
id name
== =============
3 dolor
4 sit
thirds:
id name
== =============
5 amet
6 consectetur
7 adipiscing
8 elit
first_second:
first_id second_id
======== =========
1 3
2 4
second_third:
second_id third_id
========= ========
3 5
3 6
4 7
4 8
If FirstModel is 1, then I would like to get the following from ThirdModel:
id name
== =============
5 amet
6 consectetur
I can do it for one level away (ie, SecondModel). Any ideas as to how to do it for ThirdModel?
laravel laravel-4
asked Jan 3 at 10:27
user1822391user1822391
13029
add a comment |
I am using Laravel v4.1... yes I know it is old. My question is how to set up my models & go about getting related models that are "two" levels away & associated by two pivot tables.
For example...
My database tables:
firsts:
id name
== =============
1 lorem
2 ipsum
seconds:
id name
== =============
3 dolor
4 sit
thirds:
id name
== =============
5 amet
6 consectetur
7 adipiscing
8 elit
first_second:
first_id second_id
======== =========
1 3
2 4
second_third:
second_id third_id
========= ========
3 5
3 6
4 7
4 8
If FirstModel is 1, then I would like to get the following from ThirdModel:
id name
== =============
5 amet
6 consectetur
I can do it for one level away (ie, SecondModel). Any ideas as to how to do it for ThirdModel?
laravel laravel-4
asked Jan 3 at 10:27
user1822391user1822391
13029
add a comment |
I am using Laravel v4.1... yes I know it is old. My question is how to set up my models & go about getting related models that are "two" levels away & associated by two pivot tables.
For example...
My database tables:
firsts:
id name
== =============
1 lorem
2 ipsum
seconds:
id name
== =============
3 dolor
4 sit
thirds:
id name
== =============
5 amet
6 consectetur
7 adipiscing
8 elit
first_second:
first_id second_id
======== =========
1 3
2 4
second_third:
second_id third_id
========= ========
3 5
3 6
4 7
4 8
If FirstModel is 1, then I would like to get the following from ThirdModel:
id name
== =============
5 amet
6 consectetur
I can do it for one level away (ie, SecondModel). Any ideas as to how to do it for ThirdModel?
laravel laravel-4
asked Jan 3 at 10:27
user1822391user1822391
13029
I am using Laravel v4.1... yes I know it is old. My question is how to set up my models & go about getting related models that are "two" levels away & associated by two pivot tables.
For example...
My database tables:
firsts:
id name
== =============
1 lorem
2 ipsum
seconds:
id name
== =============
3 dolor
4 sit
thirds:
id name
== =============
5 amet
6 consectetur
7 adipiscing
8 elit
first_second:
first_id second_id
======== =========
1 3
2 4
second_third:
second_id third_id
========= ========
3 5
3 6
4 7
4 8
If FirstModel is 1, then I would like to get the following from ThirdModel:
id name
== =============
5 amet
6 consectetur
I can do it for one level away (ie, SecondModel). Any ideas as to how to do it for ThirdModel?
laravel laravel-4
laravel laravel-4
asked Jan 3 at 10:27
user1822391user1822391
13029
asked Jan 3 at 10:27
user1822391user1822391
13029
asked Jan 3 at 10:27
user1822391user1822391
13029
asked Jan 3 at 10:27
user1822391user1822391
13029
asked Jan 3 at 10:27
user1822391user1822391
13029
13029
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
According to the doc in 4.1 there was has-many-through, so you might try something like this:
class FirstModel extends ModelAbstract
{
public function seconds()
{
return $this->belongsToMany(SecondModel::class);
}
public function thirds()
{
return $this->hasManyThrough(ThirdModel::class, SecondModel::class);
}
}
class SecondModel extends ModelAbstract
{
public function thirds()
{
return $this->belongsToMany(ThirdModel::class);
}
}
class ThirdModel extends ModelAbstract {}
And then get the data for third relationship from the first like this:
$first = FirstModel::find(1);
$thirds = $first->thirds;
If that doesn't work, you could do it the old fashion way where you collect all third item ids from the relationships and query the manually:
$first = FirstModel::with(['seconds.thirds'])->find(1);
$thirdIds = $first->seconds->map(function ($item) {
return $item->thirds->pluck('id')->toArray();
})->toArray();
$thirds = ThirdModel::whereIn('id', array_flatten($thirdIds));
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
add a comment |
@thefallen,
Not sure why neither your first method nor your second method did not worked for me. I ended up going with a hybrid of the two with some extra loops. Not the cleanest / prettiest but it gets the job done.
$results = ;
$id = 1 ;
$first = FirstModel :: with( [ 'seconds.thirds' ] ) -> find( $id ) ;
$seconds = $first -> seconds -> map( function ( $item ) {
return $item -> thirds ;
} ) -> toArray() ;
foreach ( $seconds as $item1 ) {
foreach ( $item1 as $item2 ) {
$results[ $item2[ 'id' ] ] = $item2[ 'name' ] ;
}
}
answered Jan 4 at 6:16
user1822391user1822391
13029
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
According to the doc in 4.1 there was has-many-through, so you might try something like this:
class FirstModel extends ModelAbstract
{
public function seconds()
{
return $this->belongsToMany(SecondModel::class);
}
public function thirds()
{
return $this->hasManyThrough(ThirdModel::class, SecondModel::class);
}
}
class SecondModel extends ModelAbstract
{
public function thirds()
{
return $this->belongsToMany(ThirdModel::class);
}
}
class ThirdModel extends ModelAbstract {}
And then get the data for third relationship from the first like this:
$first = FirstModel::find(1);
$thirds = $first->thirds;
If that doesn't work, you could do it the old fashion way where you collect all third item ids from the relationships and query the manually:
$first = FirstModel::with(['seconds.thirds'])->find(1);
$thirdIds = $first->seconds->map(function ($item) {
return $item->thirds->pluck('id')->toArray();
})->toArray();
$thirds = ThirdModel::whereIn('id', array_flatten($thirdIds));
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
add a comment |
According to the doc in 4.1 there was has-many-through, so you might try something like this:
class FirstModel extends ModelAbstract
{
public function seconds()
{
return $this->belongsToMany(SecondModel::class);
}
public function thirds()
{
return $this->hasManyThrough(ThirdModel::class, SecondModel::class);
}
}
class SecondModel extends ModelAbstract
{
public function thirds()
{
return $this->belongsToMany(ThirdModel::class);
}
}
class ThirdModel extends ModelAbstract {}
And then get the data for third relationship from the first like this:
$first = FirstModel::find(1);
$thirds = $first->thirds;
If that doesn't work, you could do it the old fashion way where you collect all third item ids from the relationships and query the manually:
$first = FirstModel::with(['seconds.thirds'])->find(1);
$thirdIds = $first->seconds->map(function ($item) {
return $item->thirds->pluck('id')->toArray();
})->toArray();
$thirds = ThirdModel::whereIn('id', array_flatten($thirdIds));
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
add a comment |
According to the doc in 4.1 there was has-many-through, so you might try something like this:
class FirstModel extends ModelAbstract
{
public function seconds()
{
return $this->belongsToMany(SecondModel::class);
}
public function thirds()
{
return $this->hasManyThrough(ThirdModel::class, SecondModel::class);
}
}
class SecondModel extends ModelAbstract
{
public function thirds()
{
return $this->belongsToMany(ThirdModel::class);
}
}
class ThirdModel extends ModelAbstract {}
And then get the data for third relationship from the first like this:
$first = FirstModel::find(1);
$thirds = $first->thirds;
If that doesn't work, you could do it the old fashion way where you collect all third item ids from the relationships and query the manually:
$first = FirstModel::with(['seconds.thirds'])->find(1);
$thirdIds = $first->seconds->map(function ($item) {
return $item->thirds->pluck('id')->toArray();
})->toArray();
$thirds = ThirdModel::whereIn('id', array_flatten($thirdIds));
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
According to the doc in 4.1 there was has-many-through, so you might try something like this:
class FirstModel extends ModelAbstract
{
public function seconds()
{
return $this->belongsToMany(SecondModel::class);
}
public function thirds()
{
return $this->hasManyThrough(ThirdModel::class, SecondModel::class);
}
}
class SecondModel extends ModelAbstract
{
public function thirds()
{
return $this->belongsToMany(ThirdModel::class);
}
}
class ThirdModel extends ModelAbstract {}
And then get the data for third relationship from the first like this:
$first = FirstModel::find(1);
$thirds = $first->thirds;
If that doesn't work, you could do it the old fashion way where you collect all third item ids from the relationships and query the manually:
$first = FirstModel::with(['seconds.thirds'])->find(1);
$thirdIds = $first->seconds->map(function ($item) {
return $item->thirds->pluck('id')->toArray();
})->toArray();
$thirds = ThirdModel::whereIn('id', array_flatten($thirdIds));
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
answered Jan 3 at 14:13
thefallenthefallen
5,72511740
5,72511740
add a comment |
add a comment |
@thefallen,
Not sure why neither your first method nor your second method did not worked for me. I ended up going with a hybrid of the two with some extra loops. Not the cleanest / prettiest but it gets the job done.
$results = ;
$id = 1 ;
$first = FirstModel :: with( [ 'seconds.thirds' ] ) -> find( $id ) ;
$seconds = $first -> seconds -> map( function ( $item ) {
return $item -> thirds ;
} ) -> toArray() ;
foreach ( $seconds as $item1 ) {
foreach ( $item1 as $item2 ) {
$results[ $item2[ 'id' ] ] = $item2[ 'name' ] ;
}
}
answered Jan 4 at 6:16
user1822391user1822391
13029
add a comment |
@thefallen,
Not sure why neither your first method nor your second method did not worked for me. I ended up going with a hybrid of the two with some extra loops. Not the cleanest / prettiest but it gets the job done.
$results = ;
$id = 1 ;
$first = FirstModel :: with( [ 'seconds.thirds' ] ) -> find( $id ) ;
$seconds = $first -> seconds -> map( function ( $item ) {
return $item -> thirds ;
} ) -> toArray() ;
foreach ( $seconds as $item1 ) {
foreach ( $item1 as $item2 ) {
$results[ $item2[ 'id' ] ] = $item2[ 'name' ] ;
}
}
answered Jan 4 at 6:16
user1822391user1822391
13029
add a comment |
@thefallen,
Not sure why neither your first method nor your second method did not worked for me. I ended up going with a hybrid of the two with some extra loops. Not the cleanest / prettiest but it gets the job done.
$results = ;
$id = 1 ;
$first = FirstModel :: with( [ 'seconds.thirds' ] ) -> find( $id ) ;
$seconds = $first -> seconds -> map( function ( $item ) {
return $item -> thirds ;
} ) -> toArray() ;
foreach ( $seconds as $item1 ) {
foreach ( $item1 as $item2 ) {
$results[ $item2[ 'id' ] ] = $item2[ 'name' ] ;
}
}
answered Jan 4 at 6:16
user1822391user1822391
13029
@thefallen,
Not sure why neither your first method nor your second method did not worked for me. I ended up going with a hybrid of the two with some extra loops. Not the cleanest / prettiest but it gets the job done.
$results = ;
$id = 1 ;
$first = FirstModel :: with( [ 'seconds.thirds' ] ) -> find( $id ) ;
$seconds = $first -> seconds -> map( function ( $item ) {
return $item -> thirds ;
} ) -> toArray() ;
foreach ( $seconds as $item1 ) {
foreach ( $item1 as $item2 ) {
$results[ $item2[ 'id' ] ] = $item2[ 'name' ] ;
}
}
answered Jan 4 at 6:16
user1822391user1822391
13029
answered Jan 4 at 6:16
user1822391user1822391
13029
answered Jan 4 at 6:16
user1822391user1822391
13029
answered Jan 4 at 6:16
user1822391user1822391
13029
13029
add a comment |
add a comment |
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