php - How can I query on 3 tables using has-many-through relationship in Laravel 5.4 -


i have searched many posts still confused. don't wanna use double query access info. i'm following example works on getting result without condition wanna apply condition on village table\model detailed below:

tables\models detail

  • province: id, name ....

  • district: id, name, province_id ....

  • village: id, name, status, district_id ....

edit

  1. province has many district. (one-to-many relationship)
  2. district has many villages. (one-to-many relationship)

here my question how province can access village info using has-many-through relationship on following criteria,

select village data district_id=some_value , status=some_value.

note: might suggest best.

thanks in advance

it assumed have these tables

 provinces   -id   -name  districts   -id   -name   -province_id  villages   -id   -name   -district_id    -status 
class province extends model {         public function villages(){         return $this->hasmanythrough('app\village','app\district');     } }

you can query as

$province = app\province::find(1);         //assumed id of province 1 $province->villages;                       // gives collection of villages $villages->where('status','some_value')->where('district_id','some_district_val');   //filters collection

Comments

Post a Comment

Popular posts from this blog

php - Vagrant up error - Uncaught Reflection Exception: Class DOMDocument does not exist -

i've set bento/ubuntu-16.04 vagrant box using php 5.6, , getting following error quite few times when try , run shell script: "uncaught reflection exception: class domdocument not exist". i've tried adding following top of script (not together), each no success: "sudo apt-get install php5.6-xml", "sudo apt-get install php5-xml", "sudo apt-get install php-dom" i've tried resetting server "sudo service apache2 restart". does have suggestions?
Read more

vue.js - Create hooks for automated testing -

Image
qa guys complained can't automate frontend testing. because our html looks same outside. lazy hack did this <template> <div :role="$options.name"> ... </div> </template> <script> export default { name: 'vmcomponentname' } </script> which takes name script , applies html. in browser get: <div role="vmcomponentname"> ... </div> line :role="$options.name" goes in every component. is there dry er solutions? please share. additional details i'll explain in details looking for. imagine have vmusercreate form creates user. test case can create user . to automatically test without role, have use following selector: .wrapper > .wrapper > .wrapper > .submit-button the test extremely brittle (will break lot). if use roles can use [role="vmusercreateform"] .submit-button selector. many folds less brittle. so basically, i'm ...
Read more

Add new key value to json node in java -

i have json file : { "id":1, "name":"abc", "addressdetails": { "city":"newyork" } } i wanted add 1 more key-value ("pincode" : "414141") node 'addressdetails'. i tried using : objectmapper mapper = new objectmapper(); jsonnode root = mapper.readtree(new file("d://test.json")); objectnode node = mapper.createobjectnode(); node.with("addressdetails").put("pincode", "414141"); but it's not getting added, there way can ? you can try you should modify file path objectmapper mapper = new objectmapper(); objectnode nodes = mapper.readvalue(new file("d:\\test.txt"), objectnode.class); nodes.with("addressdetails").put("pincode", "414141"); mapper.writer().writevalue(new file("d:\\test.txt"), nodes);
Read more