Laravel——如何使用ajax从其他表显示数据

Question

我是一个laravel的初学者。我想加入一些表和把它显示在datatable中,我使用yajra datatable中。我有三张桌子，分别是区域、分公司和分公司经理。我的问题是我想在刀片视图中显示分支表，而不是显示area_id和branch_manager_id，我希望它从区域表显示area_descand branch_manager_name fromBranch Manager Table． 我不知道怎么得到它。

面积表

public function up()
{
Schema::create('area', function (Blueprint $table) {
$table->engine = 'InnoDB';
$table->bigIncrements('id');
$table->string('area_code')->unique();
$table->string('area_desc');
$table->timestamps();
});
}

分支经理表

public function up()
{
Schema::create('branch_manager', function (Blueprint $table) {
$table->engine = 'InnoDB';
$table->bigIncrements('id');
$table->string('branch_manager_name');
$table->string('branch_manager_contact_number');
$table->timestamps();
});
}

<<p>分支表/strong>

public function up()
{
Schema::create('branch', function (Blueprint $table) {
$table->engine = 'InnoDB';
$table->bigIncrements('id');
$table->string('branch_name');
$table->string('branch_address1');
$table->string('branch_address2');
$table->bigInteger('area_id')->unsigned();
$table->bigInteger('branch_manager_id')->unsigned();
$table->timestamps();
});
Schema::table('branch', function (Blueprint $table) {
$table->foreign('area_id')->references('id')->on('area')->onUpdate('cascade');
$table->foreign('branch_manager_id')->references('id')->on('branch_manager')->onUpdate('cascade');
});
}

<<p>区域模型/strong>

class Area extends Model
{
use HasFactory;
protected $table = 'area';
protected $fillable = [
'area_code',
'area_desc',
];
public function branch()
{
return $this->hasMany(Branch::class);
}
}

分支经理模型

class BranchManager extends Model
{
use HasFactory;
protected $table = 'branch_manager';
protected $fillable = [
'branch_manager_name',
'branch_manager_contact_number'
];
public function branch()
{
return $this->hasOne(Branch::class);
}
}

<<p>分支模型/strong>

class Branch extends Model
{
use HasFactory;
protected $table = 'branch';
protected $fillable = [
'branch_name',
'branch_address1',
'branch_address2',
'area_id',
'branch_manager_id',
];
public function area()
{
return $this->belongsTo(Area::class);
}
public function branchManager()
{
return $this->belongsTo(BranchManager::class);
}
}

Ajax请求分支数据表

<script type="text/javascript">
$(function() {
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
var table = $('.table-striped.first').DataTable({
processing: true,
serverSide: true,
ajax: "{{ route('settings.branch.list') }}",
columns: [{
data: 'branch_name',
name: 'branch_name'
},
{
data: 'branch_address1',
name: 'branch_address1'
},
{
data: 'branch_address2',
name: 'branch_address2'
},
{
data: 'area_id',
name: 'area_id'
},
{
data: 'branch_manager_id',
name: 'branch_manager_id'
},
{
data: 'action',
name: 'action',
orderable: true,
searchable: true
},
]
});
</script>

<<p>分枝控制器/strong>

public function branch(Request $request)
{
$branches = Branch::latest()->get();
$areas = Area::latest()->get();
$branchManagers = BranchManager::latest()->get();
if ($request->ajax()) {
$data = Branch::latest()->get();
return Datatables::of($data)
->addIndexColumn()
->addColumn('action', function($row){
$btn = '<a href="javascript:void(0)" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="Edit" class="btn btn-sm btn-outline-light editRecord">Edit</a>';
$btn = $btn.' <a href="javascript:void(0)" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="Delete" class="btn btn-sm btn-outline-light deleteRecord"><i class="far fa-trash-alt btn-outline-danger"></i></a>';
return $btn;
})
->rawColumns(['action'])
->make(true);
}
return view('admin.branch', compact('branches', 'areas', 'branchManagers'));
}

如有任何意见将不胜感激，谢谢

Answer 1

In BrachController.php

public function branch(Request $request)
{
if ($request->ajax()) {
$data = Branch::with('area','branchManager')->latest()->get();
return Datatables::of($data)
->addIndexColumn()
->addColumn('area_desc', function($row){
return $row->area->area_desc;
})
->addColumn('branch_manager_name', function($row){
return $row->branchManager->branch_manager_name;
})
->addColumn('action', function($row){
$btn = '<a href="javascript:void(0)" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="Edit" class="btn btn-sm btn-outline-light editRecord">Edit</a>';
$btn = $btn.' <a href="javascript:void(0)" data-toggle="tooltip"  data-id="'.$row->id.'" data-original-title="Delete" class="btn btn-sm btn-outline-light deleteRecord"><i class="far fa-trash-alt btn-outline-danger"></i></a>';
return $btn;
})
->rawColumns(['area_desc', 'branch_manager_name', 'action'])
->make(true);
}
return view('admin.branch');
}

在叶片

<script type="text/javascript">
$(function() {
$.ajaxSetup({
headers: {
'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
}
});
var table = $('.table-striped.first').DataTable({
processing: true,
serverSide: true,
ajax: "{{ route('settings.branch.list') }}",
columns: [{
data: 'branch_name',
name: 'branch_name'
},
{
data: 'branch_address1',
name: 'branch_address1'
},
{
data: 'branch_address2',
name: 'branch_address2'
},
{
data: 'area_desc',
name: 'area_desc'
},
{
data: 'branch_manager_name',
name: 'branch_manager_name'
},
{
data: 'action',
name: 'action',
orderable: true,
searchable: true
},
]
});
</script>