
# django-ffield

django-ffield is a Django package that provides additional functionality and control over Django model fields, specifically focusing on file fields. This README.md file will guide you through the package's features, installation process, and provide examples of how to use it effectively.

## Table of Contents
- [Installation](#installation)
- [Usage](#usage)
  - [FileFField](#fileffield)
  - [FiledFField](#filedffield)
- [Utility Functions](#utility-functions)
- [Validators](#validators)
- [Contributing](#contributing)
- [License](#license)

---

## Installation

You can install `django-ffield` via pip:

```bash
pip install django-ffield
```

## Usage

### FileFField

`FileFField` extends Django's `FileField` and allows you to specify accepted file types during field initialization.

#### Example:

```python
from django.db import models
from django_ffield.fields import FileFField

class MyModel(models.Model):
    image_field = FileFField(upload_to='images/', types=['image'])
    pdf_field = FileFField(upload_to='pdfs/', types=['pdf'])
    video_field = FileFField(upload_to='videos/', types=['video'])

# Usage
my_instance = MyModel.objects.get(pk=1)
my_instance.image_field = 'example.png'    # Validates as it matches the 'image' type
my_instance.pdf_field = 'example.pdf'        # Validates as it matches the 'pdf' type
my_instance.video_field = 'example.mp4'      # Validates as it matches the 'video' type
```

### FiledFField

`FiledFField` is a field that extends Django's `FieldFile` and provides additional properties to access file-related information.

#### Example:

```python
from django.db import models
from django_ffield.fields import FiledFField

class MyModel(models.Model):
    file_field = FiledFField(upload_to='uploads/')

# Usage
my_instance = MyModel.objects.get(pk=1)
file = my_instance.file_field

# Accessing file properties
mime_type = file.mime_type  # Returns the mimetype (e.g., 'image/png')
file_type = file.type       # Returns the type of file (e.g., 'Image')
file_format = file.format   # Returns the file format (e.g., 'png')
```

## Utility Functions

`django-ffield` provides a utility function for detecting file MIME types.
This function detects the MIME type of a file by reading the first 2048 bytes.

#### Example:

```python
from django_ffield.utils import meme_type
from django.core.files import File

with open('example.png', 'rb') as file:
    type, subtype = meme_type(file)
    print(f"Type: {type}, Subtype: {subtype}")
```

## Validators

`django-ffield` includes a custom file type validator that can be used with `FileFField`.
This validator ensures that the uploaded file's type is among the specified types.

#### Example:

```python
from django_ffield.validators import FileTypeValidator

class MyModel(models.Model):
    file_field = models.FileField(upload_to='uploads/', validators=[
    FileTypeValidator(['image', 'pdf', 'mp4'])
    ])

# Usage
my_instance = MyModel.objects.get(pk=1)
my_instance.file_field = 'example.mp3'  # This will raise a ValidationError since 'mp3' is not in the accepted types
```

## Contributing

Feel free to contribute to `django-ffield`.

## License

This project is licensed under the MIT License - see the [LICENSE](https://github.com/bigsbug/django-ffield/blob/main/LICENSE) file for details.

---

Feel free to explore and utilize `django-ffield` to enhance your Django projects. If you have any questions, issues, or feature requests, please open an [issue](https://github.com/bigsbug/django-ffield/issues) on our GitHub repository. Happy coding!