https://github.com/fmahadybd/xecom

https://github.com/fmahadybd/xecom

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• Host: GitHub
• URL: https://github.com/fmahadybd/xecom
• Owner: fmahadyBD
• Created: 2024-05-04T13:17:43.000Z (9 months ago)
• Default Branch: main
• Last Pushed: 2024-05-11T09:19:27.000Z (9 months ago)
• Last Synced: 2024-05-11T20:56:11.993Z (9 months ago)
• Language: CSS
• Size: 24 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# What I learn from this project

-   The Topic's name: \*

*   [One-to-One Table Relation ](#one-to-one-table-relation)

*   [Subcategory by the Category](#Subcategory-by-the-Category)

*   [Globar data by AppProvider](#Globar-data-by-AppProvider)

## One-to-One Table Relation

### Overview

In this README, we will discuss the one-to-one table relation between two tables: `Subcategory` and `Category`. Specifically, we will focus on how the `category` function within the `Subcategory` model establishes this relation.

## Relation Description

The relation between the `Subcategory` and `Category` tables is established as a one-to-one relationship. Each `Subcategory` belongs to one `Category`, and each `Category` can have only one associated `Subcategory`.

## Implementation Details

### Relation Setup

To establish the one-to-one relationship, we utilize Laravel's Eloquent ORM. Within the `Subcategory` model, the `category` function is defined to specify the relation.

```php

public function category()

{

    return $this->belongsTo('App\Models\Category');

}

```

### Usage

When accessing a `Subcategory` instance, you can retrieve its associated `Category` using the `category` function. For example:

```php

$subCategory = Subcategory::find($id);

$category = $subCategory->category;

```

### Blade file:

```

@foreach($subcategories as $subCategory)

    


        Subcategory Name: {{ $subCategory->name }} 


        Category Name: {{ $subCategory->category->name }}

    

 @endforeach

```


This retrieves the `Category` object related to the `$subCategory`.

### Context

-   **$subCategory**: This variable represents an instance of the `Subcategory` class, typically used within a loop or retrieved from the database.

-   **category**: Within the `Subcategory` model, `category` refers to the function that establishes the relation with the `Category` table.

-   **belongsTo()**: This method specifies that the `Subcategory` table has a foreign key referencing the `Category` table.

## Conclusion

In summary, the `category` function within the `Subcategory` model enables the establishment of a one-to-one table relation between the `Subcategory` and `Category` tables in Laravel. By utilizing Eloquent's built-in methods, developers can easily navigate and work with related data in their applications.

## Subcategory by the Category

### Loading Data in Controller

```php

// Load the blade file to load the data

function addProduct()

{

    $categories = Category::all();

    $SubCategories = SubCategory::all();

    return view('admin.product.add-sub-product', [

        'SubCategories' => $SubCategories,

        'categories' => $categories,

    ]);

}

```

### Dropdown Menu

```html



    Select Category :

    


        

            Select One

            @foreach ($categories as $category)

                {{ $category->name }}

            @endforeach

        

    





    Sub Category :

    


        

            

            Select One

            @foreach ($SubCategories as $SubCategory)

                {{ $SubCategory->name }}

            @endforeach

        

    



```


### JavaScript (yield() in master)

```javascript

@section('admin-js')

    function toggleSubCategoryDropdown(enable) {

        if (enable) {

            $('#subCategoryId').prop('disabled', false);

        } else {

            $('#subCategoryId').prop('disabled', true);

            $('#subCategoryId').val('').change();

        }

    }

    $(document).on("change", '#categoryId', function() {

        var categoryId = $(this).val();

        if (categoryId) {

            toggleSubCategoryDropdown(true);

            $.ajax({

                url: '/getSubCategory/' + categoryId,

                method: 'GET',

                dataType: 'json',

                success: function(res) {

                    var options = '<option value="" disabled="" selected>Select One</option>';

                    $.each(res, function(key, value) {

                        options += '<option value="' + value.id + '">' + value.name +

                            '</option>';

                    });

                    $('#subCategoryId').html(options);

                },

                error: function(e) {

                    console.log(e);

                }

            });

        } else {

            toggleSubCategoryDropdown(false);

        }

    });

    $(document).ready(function() {

        toggleSubCategoryDropdown(false);

    });

@endsection

```

### Route for Asynchronous Call

```php

Route::get('/getSubCategory/{id}',[SubCategoryController::class,'getSubCategory'])->name('getSubCategory');

```

### Controller Function

```php

public function getSubCategory($id) {

    $this->subCategory = SubCategory::where('category_id', $id)->get();

    return response()->json($this->subCategory);

}

```

## Globar data by AppProvider

### AppProvider Code

```php

public function boot(): void

{

    View::composer(['front.includes.header'], function ($view) {

        $view->with('categoriesH', Category::where('status', 1)->get());

    });

}

```

### Blade File Changes

```html



Category

    


        @foreach ($categoriesH as $category)

            
 {{ $category->name }}

        @endforeach