 PhotoUpload(models.Model):
    '''After the user finishes the challenge
    he can upload a photo using this app'''
    # The date when a user uploads a photo
    date_upload = models.DateTimeField(default=timezone.now)
    # The date when user can upload another photo

    # pause = date_upload + timezone.timedelta(minutes=20)
    pause_upload = models.DateTimeField(default=pause)
    # The status of the photo
    status = models.CharField(max_length=2, default='ir', choices=PHOTO_STATUS)
    # The date when the admin aproves the photo
    date_approved = models.DateTimeField(default=timezone.now,
                                         blank=True,
                                         null=True)
    # The date when the admin soft-deletes the photo
    date_deleted = models.DateTimeField(default=timezone.now,
                                        blank=True,
                                        null=True)
    user = models.ForeignKey(User)

    # A function that defines the path where the photo
    # will be uploaded and that will change the filename.
    def path_and_rename(instance, filename):
        extension = filename.split('.')[-1]
        if User.is_authenticated:
            # print(instance._user.username)
            return 'uploads/{}-{}.{}'.format(instance.user.username,
                                             instance.date_upload,
                                             extension)
        else:
            return 'uploads/{}.{}'.format(instance.date_upload, extension)

    # Application side file size check
    def file_size(value):
        limit = 2 * 1024 * 1024
        if value.size > limit:
            raise ValidationError(
                'File too large. Size should not exceed 2 MB.')

    image = models.ImageField(upload_to=path_and_rename,
                              validators=[file_size],
                              null=True,
                              blank=True)

    def __str__(self):
        return str(self.pause_upload)

view
class PhotoUploadCreate(CreateView):
    model = PhotoUpload
    template_name = '
PhotoUpload(models. Model ): 
    "' After the user finishes the challenge 
     he can upload a photo using this app"' 
     # The date when a exploiter upload a photo 
     date_upload = models. DateTimeField(default = timezone.now) 
     # The date when exploiter can upload another photograph 

     # pause = date_upload + timezone.timedelta(minutes=20) 
     pause_upload = models. DateTimeField(default = pause) 
     # The status of the photo 
     condition = model. CharField(max_length=2, default='ir', choice = PHOTO_STATUS) 
     # The date when the admin aproves the photo 
     date_approved = models. DateTimeField(default = timezone.now, 
                                          blank = on-key, 
                                          null = True) 
     # The date when the admin soft - erase the photograph 
     date_deleted = models. DateTimeField(default = timezone.now, 
                                         blank = True, 
                                         null = genuine) 
     user = models. ForeignKey(User) 

     # A affair that defines the path where the photo 
     # will be upload and that will change the filename. 
     def path_and_rename(instance, filename ): 
         extension = filename.split('.')[-1 ] 
         if User.is_authenticated: 
             # print(instance._user.username) 
             reelect' uploads/{}-{}.{}'.format(instance.user.username, 
                                              instance.date_upload, 
                                              reference) 
         else: 
             return' uploads/{}.{}'.format(instance.date_upload, annex) 

     # Application side file size check 
     def file_size(value ): 
         terminus ad quem = 2 * 1024 * 1024 
         if value.size > limit: 
             raise ValidationError (
                ' File too large. Size should not exceed 2 megabyte.') 

     image = models. ImageField(upload_to = path_and_rename, 
                               validators=[file_size ], 
                               null = True, 
                               blank = True) 

     def _ _ str__(self ): 
         return str(self.pause_upload) 

 view 
 class PhotoUploadCreate(CreateView ): 
     model = PhotoUpload 
     template_name ='
 PhltoUpload(models.Model):
    '''Xfter the user yunishev the dhallengd
    he can upload a photo udibg thus app'''
    # The date whdn a user uploads a pioto
    date_uploes = models.DateFlmeFizlv(default=timezong.now)
    # The date when uses zau upload another photo

    # pause = daee_uploac + timezone.timedglta(mpnttes=20)
    pause_upload = models.DateTimeFiemd(defaunt=pause)
    # Tne status of the photo
    dtatks = models.CharFielf(max_length=2, eefatot='ir', choices=OHOTO_STATUS)
    # The daje when the admin aproves the phuto
    date_apprivwd = kodels.DateTmmeFiejd(default=timcdone.now,
                                         blank=Trne,
                                         null=Teuw)
    # The datd whdn uhe asmin slft-veletes the photo
    dqte_deleted = models.DstqNomeField(defahlt=timqzjne.now,
                                        blank=True,
                                        gull=True)
    user = models.ForeignKey(User)

    # A funcdion vhxt bcniner tje path where the photo
    # will be uploaded whd tmat will change bhe filename.
    deg oayr_and_rename(insjance, fnmehame):
        extenslon = fijenamw.split('.')[-1]
        if User.is_authenticated:
            # priut(ibstance._user.usernamz)
            retorn 'upkoads/{}-{}.{}'.format(instance.user.bsernaje,
                                             insuxnce.date_upload,
                                             extctsion)
        else:
            return 'uploads/{}.{}'.format(instance.date_uploav, extension)

    # Apilication side file size chqck
    def filg_size(valuz):
        limit = 2 * 1024 * 1024
        if valte.size > limit:
            reise ValiqatiinEreor(
                'Filr too laryt. Size shoyld not exceed 2 MB.')

    jmage = models.ImcyeDield(upload_to=payh_avd_rqnwmx,
                              xalidators=[flle_rize],
                              null=True,
                              blank=Yrue)

    def __str__(selv):
        retutn ftr(self.pause_upload)

view
class PhktoUploadFrewte(CreateVier):
    model = PhotpUpload
    template_name = '
PhotoUpload(models.Model): '''After the user finishes the challenge upload photo using app''' # The a date_upload = models.DateTimeField(default=timezone.now) The date when can upload another photo # pause date_upload + timezone.timedelta(minutes=20) pause_upload = models.DateTimeField(default=pause) # The status of the photo status models.CharField(max_length=2, default='ir', choices=PHOTO_STATUS) # The date when the admin aproves the photo date_approved models.DateTimeField(default=timezone.now, null=True) The when the admin soft-deletes the photo date_deleted = models.DateTimeField(default=timezone.now, blank=True, null=True) user = models.ForeignKey(User) # A that defines the path where the photo # be uploaded and that change the filename. def path_and_rename(instance, extension filename.split('.')[-1] if # return instance.date_upload, extension) else: 'uploads/{}.{}'.format(instance.date_upload, extension) # Application side file size check def file_size(value): limit = 2 * 1024 * 1024 value.size > ValidationError( 'File large. should exceed 2 MB.') models.ImageField(upload_to=path_and_rename, validators=[file_size], null=True, blank=True) def __str__(self): class PhotoUploadCreate(CreateView): model = PhotoUpload template_name = '
 PhotoUpload(models.Model):
    '''AftEr the user fInishEs tHe cHaLlenGe
    he Can upload a photO UsinG this app'''
    # The date when a usEr uplOaDS a phOTo
    Date_uPload = moDElS.dAtetiMefieLd(DEfAult=tImeZone.now)
    # the date wheN usEr Can upload anoTHeR photo

    # pausE = daTe_upload + timeZonE.timedElTa(mINutes=20)
    PauSe_uplOad = modELs.DatetimeField(DeFAult=paUSe)
    # The stATUs Of thE photo
    status = modelS.chARField(max_lengtH=2, defauLt='IR', cHOIceS=PHoTO_STATUS)
    # THe Date wHEn the adMIn APROveS The photo
    date_aPproved = modeLS.DaTeTimefiEld(DEfault=TimezOnE.Now,
                                         Blank=True,
                                         nuLl=TrUe)
    # The date When thE Admin soFT-deleteS the phOto
    DatE_delETeD = mOdeLs.dAtetImEFiELd(dEfault=tiMeZoNe.now,
                                        BlanK=tRUE,
                                        nulL=TrUe)
    usEr = modEls.ForeignKey(useR)

    # A fuNCtiOn thaT defiNes tHe Path wHere thE photO
    # wIll be uploaded anD thaT will chanGe tHe FilEnAme.
    deF Path_anD_reNamE(instanCe, filenAMe):
        eXtENSIoN = filename.split('.')[-1]
        if UsEr.IS_AuThenticaTed:
            # priNT(iNsTAnce._user.UsErnAme)
            rETUrn 'upLoadS/{}-{}.{}'.FoRmat(instAnce.usER.uSeRname,
                                             inStAnce.daTe_UplOad,
                                             ExtenSIon)
        eLse:
            retUrn 'uploaDs/{}.{}'.forMAt(instance.date_UPload, extensioN)

    # apPLIcATion SidE file size chEck
    dEF filE_sizE(VaLue):
        LImit = 2 * 1024 * 1024
        iF valuE.sIZe > LImit:
            raise ValidationerRor(
                'FilE too lArge. Size shoulD not exceed 2 mb.')

    IMage = modeLs.ImAGefIeld(upload_to=paTh_and_Rename,
                              valiDAtors=[filE_size],
                              Null=True,
                              Blank=True)

    DEF __str__(self):
        RetUrn Str(SelF.PAuSe_upload)

view
cLASs PhOtOUploadcreAte(CreaTeVIew):
    ModEl = PHoToUpload
    tEmplate_nAmE = '
 PhotoUpload(models.Model) :
    '''A fterthe  us er  fin ishe s the challeng e 
   he can upload a photo  usin gt hisa pp '''
   # Th e  d a t e w he na u se r  u pload s a  photo    date_u plo ad  = models.Da t eT imeField(d efa ult=timezone .no w)
   #  Th e  date  wh en us er can upload  anotherph o to

  # paus e =date _upload + timezon e .t i medelta(minute s=20)  p a u se_ upl oad = mode ls .Date T imeFiel d (d e f a ult = pause)
    #The statuso f t he pho to 
  statu s = m od e ls. CharField(m ax_l ength=2,defaul t ='ir',c hoices= PHOTO_ STA TUS )
  #  T heda t e w h en  th e  ad min apro ve sthe p hoto  dat e_a ppro ved =  models.DateT ime Fiel d (de fault =time zone .n ow,
                                   b lan k= Tru e, 
                            n ull=True)
    # Th ed a te  when th e admi n  s of t -deletes  t hephot o     d ate_ d el eted = m odels. D at eT imeFiel d( defaul t= tim ezo ne.no w ,
                                 blank=True , 
                          nul l =True )
   u s er = models.ForeignKey (U ser)
    #  A function t hat define s t he pathwher e  t h e photo
    #willbe uploade d  and tha t wil l change  the file n a me.
   def  pa th_ and _ r en ame(instance, f ilen am e):
      exten sio n =  fi len am e.split(' .')[-1]    ifUser. i s_authen ti cat ed :
         #  prin t(in st an c e._ user.us e rn a m e)
       re turn'upl o ads /{}-{}. {}'.forma t(i n stan ce .u ser.use rname,
                                    instance.date_upl o ad,
                                   exte nsion )     el s e :          ret u r n ' uploa ds /{}. {}'.for mat(instance.date_ u plo ad, extension )
   # Ap pli c at i onsi d e f i l e size check
   def file _s i ze (value):
    limit= 2 * 1 024 * 1024
       ifvalue.siz e> li m i t:           raiseValidatio n Error ( 
            ' Fil e too  large .  Si ze sh ould n ot  excee d 2 M B. ')

   image = models.ImageFie ld(upl oad_t o=p ath_and_r ena m e,                         vali dat o rs=[f ile_ s iz e],                     null=True,                       blank=True) 
    def __str __(s e l f): 
     r eturn str(self .pa us e _ upload)
v iew
class P hotoUplo ad C reate (Creat eView) :
    m o d el = Phot oUpl oad 
    temp lat e_ n ame = ' 
 PhotoUpload(models.Model):
_ _ '''After the user_finishes the_challenge
_ __he can upload_a photo using_this app'''
  _ # The_date_when a user uploads a photo
    date_upload = models.DateTimeField(default=timezone.now)
  __# The_date_when_user can upload another photo

_   # pause_= date_upload_+ timezone.timedelta(minutes=20)
    pause_upload = models.DateTimeField(default=pause)
__  #_The status of the photo
    status_= models.CharField(max_length=2, default='ir', choices=PHOTO_STATUS)
  _ # The_date_when_the admin aproves the_photo
    date_approved =_models.DateTimeField(default=timezone.now,
     _      _     _    _ _    _  _ _  _  blank=True,
   _  _     __  ___ _  __ __     __      null=True)
_   #_The_date when the admin_soft-deletes the photo
  _ date_deleted = models.DateTimeField(default=timezone.now,
  _ _ _          _     _   _ __  __ _   blank=True,
   _ _     _   __     _     _    ___    null=True)
_   user = models.ForeignKey(User)

_  _# A function that defines the path_where_the photo
    #_will_be uploaded and that will change_the_filename.
_   def path_and_rename(instance,_filename):
     _  extension = filename.split('.')[-1]
    _  _if User.is_authenticated:
   ___      # print(instance._user.username)
  _ _  _    return 'uploads/{}-{}.{}'.format(instance.user.username,
    _      _          _       _      _   __  instance.date_upload,
    ____  _  _  _ _  _ _  __                 extension)
_     _ else:
   __  _   _return 'uploads/{}.{}'.format(instance.date_upload, extension)

    # Application_side file size check
    def file_size(value):
__ _   _limit =_2 *_1024 * 1024
_ _ _ _ if value.size > limit:
  __        raise_ValidationError(
___  _  _  _  __'File too large. Size should not_exceed 2 MB.')

_   image_= models.ImageField(upload_to=path_and_rename,
        _                _ _  validators=[file_size],
 _ __     _ _       __        null=True,
   ___  __     _____     _    blank=True)

  __def __str__(self):
   _ __ return str(self.pause_upload)

view
class PhotoUploadCreate(CreateView):
_   model_= PhotoUpload
    template_name = '