Image saving in Database using Django giving Error "The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()"

Question

Hi I am extracting frames from video and want to store these frames into database using Django. Here is my code :

def saveFrame(request):  
video = Video.objects.last() 
path = os.path.dirname(__file__)
path = path.replace('videos',video.video.url)
clip = VideoFileClip(path) 
 
clip = clip.subclip(0, 15)  
clip = clip.cutout(3, 10) 
clip.ipython_display(width = 360) 

cap= cv2.VideoCapture('__temp__.mp4')
i=0
image = Image()

while(cap.isOpened()):
 ret, frame = cap.read()
 if ret == False:
    break
 image.video_id = video
 image.title = video.title +str(i)
 image.imagefile = frame
 image.save()
 print(i)
 i+=1

cap.release()
cv2.destroyAllWindows()

When I run this code i recieve this error :

Error in image.save()
ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all() Here is my Image Class that I created in model.py:

Class Image(models.Model):
    video_id = models.ForeignKey(Video, 
    on_delete=models.CASCADE,null="false")
    title= models.CharField(max_length=50)
    imagefile= models.FileField(upload_to='images/', null=True)

    def __str__(self):
        return self.video_id + ": " +self.title+ ": " + 
        str(self.imagefile)

Can anyone help me with this issue so I can save images into database.

Does this answer your question? [ValueError: The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()](https://stackoverflow.com/questions/10062954/valueerror-the-truth-value-of-an-array-with-more-than-one-element-is-ambiguous) — Ankit Tiwari, Jun 07 '21 at 14:50
Youll need to have image = Image() within the loop so you create a new image object per frame — tomgalpin, Jun 07 '21 at 14:53
Have you got an override in the save() function of the Image model ? if so, post that — tomgalpin, Jun 07 '21 at 14:55
Yes at first I tried to keep this line image = Image() inside the loop but it did not work — Maria Iftikhar, Jun 07 '21 at 14:56
.save() function is by default function for storing data into database provided by django — Maria Iftikhar, Jun 07 '21 at 14:59

Image saving in Database using Django giving Error "The truth value of an array with more than one element is ambiguous. Use a.any() or a.all()"

0 Answers0