Angular 4 到 Django REST 圖像上傳

Question

我有一個帶有models.ImageField() 的django REST API，我可以從django 本身上傳照片就好了，我的問題是當我嘗試從angular 上傳照片時。

.html

<div class="form-group">
 <label for="usr">Upload your new photo(Optional):</label> <input type="file"  accept=".jpg,.png,.jpeg" (change)="attachFile($event)">
 <br>
 <img src="{{imageSrc}}"   height="250" weight="250" alt="Image preview..." />
</div>

組件.ts

Update(form){
  let body = {
    house: 3,
    photourl: this.imageSrc
  }
  console.log(this.imageSrc)
  this.http.Post('http://127.0.0.1:8000/api/photos', body).subscribe( res => console.log(res))
  console.log(form)
}

attachFile(event) : void {
    var reader = new FileReader();
    let _self = this;

    reader.onload = function(e) {
      _self.imageSrc = reader.result;
    };
    reader.readAsDataURL(event.target.files[0]);
   }

錯誤是 this.imageSrc 不是文件，我應該如何解決這個問題？ 我需要將哪些數據發送到 ImageField()

Answer 1

https://github.com/Hipo/drf-extra-fields好神一樣的圖書館：D！

class HouseImSerializer(serializers.ModelSerializer):
    image = Base64ImageField(required=False)

    class Meta:
        model = tedbnbhouseimages
        fields = ('house', 'image', 'photo')

    def create(self, validated_data):
        house = validated_data['house']
        if not validated_data['photo']:
            photo = validated_data['image']
        else:
            photo = validated_data['photo']
        houseimage = tedbnbhouseimages(
            house = house,
            photo = photo,
        )
        houseimage.save()
        return houseimage

photo =來自models.py的Imagefield，照片不需要在字段上，但我保留它以便通過DRF快速創建！