jNrddlZddlZddlmZddlmZddlmZddlm Z m Z ddl m Z ddl mZmZddlmZdd lmZdd lmZdd lmZdd lmZdd lmZddlmZddlm Z Gdde eZ!GddeZ"GddeZ#Gdde"Z$Gdde e!Z%Gdde#Z&dS)N)forms)checks) FieldError) ContentFileFile) ImageFile)Storagedefault_storage)validate_file_name)signals)DatabaseDefault)Field)DeferredAttribute) AltersData) gettext_lazy)PY311ceZdZfdZdZdZdZdZdZdZ e eee Z e dZ e d Z e d Zdd Zd e_dZddZd e_ddZd e_e dZdZdZdZxZS) FieldFilectd|||_||_|j|_d|_dS)NT)super__init__instancefieldstorage _committed)selfrrname __class__s j/var/www/finuniver-perm.ru/html/student/venv/lib/python3.11/site-packages/django/db/models/fields/files.pyrzFieldFile.__init__s? t$$$   } cXt|dr|j|jkS|j|kS)Nr)hasattrr)rothers r__eq__zFieldFile.__eq__s2 5& ! ! +9 * *yE!!r c*t|jSN)hashrrs r__hash__zFieldFile.__hash__#sDIr cB|std|jjzdS)Nz2The '%s' attribute has no file associated with it.) ValueErrorrrr(s r _require_filezFieldFile._require_file*s2 DtzV   r c|t|dd%|j|jd|_|jS)N_filerb)r,getattrropenrr.r(s r _get_filezFieldFile._get_file0sI  4$ ' ' /**49d;;DJzr c||_dSr&r.rfiles r _set_filezFieldFile._set_file6s  r c |`dSr&r4r(s r _del_filezFieldFile._del_file9s JJJr ch||j|jSr&)r,rpathrr(s rr;zFieldFile.path>s, |  +++r ch||j|jSr&)r,rurlrr(s rr=z FieldFile.urlCs, | ***r c||js |jjS|j|jSr&)r,rr6sizerrr(s rr?zFieldFile.sizeHs@  "9> !|  +++r r/c|t|dd&|j|j||_n|j||SNr.)r,r0rr1rr6)rmodes rr1zFieldFile.openOs\  4$ ' ' / ))$)T::DII INN4  r TcFt|j|jj|dSr&)setattrrrattnamerrcontents r_set_instance_attributez!FieldFile._set_instance_attribute^s! tz1488888r c|j|j|}|j|||jj|_||j|d|_|r|jdSdS)N) max_lengthT) rgenerate_filenamerrsaverJrrHr)rrrGrLs rrLzFieldFile.saveasz++DM4@@L%%dG @U%VV  $$TY888  ! M    ! !r c8|sdSt|dr||`|j|jd|_t |j|jj |jd|_ |r|j dSdS)Nr.F) r"closer6rdeleterrDrrrErrL)rrLs rrOzFieldFile.deletems  F 4 ! !  JJLLL  DI&&&  tz149===  ! M    ! !r c:t|dd}|dup|jSrA)r0closedr5s rrQzFieldFile.closeds$tWd++t|*t{*r cXt|dd}||dSdSrA)r0rNr5s rrNzFieldFile.closes2tWd++   JJLLLLL  r c2|jddd|j|jdS)NFT)rrQrr.rr)rrrr(s r __getstate__zFieldFile.__getstate__s+ I Z    r c\|j||jj|_dSr&)__dict__updaterr)rstates r __setstate__zFieldFile.__setstate__s( U###z) r )r/T)__name__ __module__ __qualname__rr$r)r,r2r7r9propertyr6r;r=r?r1 alters_datarHrLrOrQrNrTrY __classcell__rs@rrrs"""   8Iy) 4 4D ,,X,++X+,,X, D 999!!!!D!!!!$F ++X+    *******r rc*eZdZdZdfd ZdZxZS)FileDescriptora The descriptor for the file attribute on the model instance. Return a FieldFile when accessed so you can write code like:: >>> from myapp.models import MyModel >>> instance = MyModel.objects.get(pk=1) >>> instance.file.size Assign a file object on assignment so you can do:: >>> with open('/path/to/hello.world') as f: ... instance.file = File(f) Nc||St||}t|ts|7|j||j|}||j|jj<n7t|tr@|j||j|jj }||j|jj<nt|tr^t|tsI|j||j|j }||_ d|_||j|jj<not|tr5t|ds%||_|j|_|jj|_n%t|tr||jur||_|j|jjS)NFr)r__get__ isinstancestrr attr_classrVrEr db_defaultrrrr6rr"rr)rrclsr6attr file_copyrs rrezFileDescriptor.__get__s  Kwwx-- dC  %DL:((4:tDDD48H dj0 1 1o . . %:((4:tz?TUUD48H dj0 1 1 d # # %JtY,G,G % --h DINNI!IN#(I 4=H dj0 1 1 i ( ( %w1G1G %$DMDJ:-DLLi ( ( %XT]-J-J$DM !344r c.||j|jj<dSr&)rVrrE)rrvalues r__set__zFileDescriptor.__set__s05$*,---r r&)r[r\r]__doc__reror`ras@rrcrcsW  :5:5:5:5:5:5x6666666r rcceZdZeZeZedZ dfd Z fdZ dZ dZ fdZ d Zfd Zfd Zfd Zd ZdZfdZxZS) FileFieldrNc d|v|_|pt|_t|jrt|j|_||_t |jt s5t|jj dt j dt j ||_ | ddtj||fi|dS)N primary_keyz(.storage must be a subclass/instance of .rJd)_primary_key_set_explicitlyr rcallable_storage_callablerfr TypeErrorrr]r\ upload_to setdefaultrr)r verbose_namerr|rkwargsrs rrzFileField.__init__s,9F+B(1/ DL ! ! %)\D "<<>>DLdlG44 333***,, #,,,,t66v66666r c gtjdi|||SN)rcheck_check_primary_key_check_upload_torrrs rrzFileField.checksU UWW] $ $V $ $  $ $ & &  " " $ $  r c^|jr%tjd|jjz|dgSgS)Nz/'primary_key' is not a valid argument for a %s.z fields.E201)objid)rxrErrorrr[r(s rrzFileField._check_primary_keysH  +  En-.$  Ir ct|jtr@|jdr&t jd|jjz|ddgSgS)N/zH%s's 'upload_to' argument must be a relative path, not an absolute path.z fields.E202zRemove the leading slash.)rrhint)rfr|rg startswithrrrr[r(s rrzFileField._check_upload_to"sm dnc * * t~/H/H/M/M  %'+~'>?$4  Ir ct\}}}}|ddkr|d=|j|d<t |d|j}|t ur||d<||||fS)NrJrwr|rzr)r deconstructgetr|r0rr )rrr;argsrrrs rrzFileField.deconstruct0s#(77#6#6#8#8 dD& ::l # #s * *|$"n{$ 3T\BB / ) ) 'F9 T4''r cdS)Nrrrr(s rget_internal_typezFileField.get_internal_type:s{r clt|}|dSt|Sr&)rget_prep_valuerg)rrnrs rrzFileField.get_prep_value=s2&&u-- =45zzr c^t||}|jW|jPt d|jd}t r/t |jtr|d||r)|j s"| |j|j d|S)Nz File for z4 must have the name attribute specified to be saved.z&Pass a 'name' argument to ContentFile.F)rL) rpre_saverr.rrrfradd_noterrLr6)rmodel_instanceaddr6excrs rrzFileField.pre_saveEsww44 9 !7#>?????r c^t|jr|||}nXtjt |j}t j||}t|d}|j |S)a Apply (if callable) or prepend (if a string) upload_to to the filename, then delegate further processing of the name to the storage backend. Until the storage layer, all file paths are expected to be Unix style (with forward slashes). T)allow_relative_path) ryr|datetimenowstrftimerg posixpathjoinr rrK)rrfilenamedirnames rrKzFileField.generate_filenameYs DN # # 9~~h99HH'++--66s4>7J7JKKG ~gx88H%hDIII|--h777r c>|t||j|pddSdS)Nrs)rDr)rrdatas rsave_form_datazFileField.save_form_datahs2   Hdi 4 4 4 4 4  r c ^tjditj|jd|S)N) form_classrJr)r formfieldrrrrJrs rrzFileField.formfieldrsF uww   #o"o   r )NNrsN)r[r\r]rrhrcr_ descriptionrrrrrrrrrrKrrr`ras@rrrrrsFJ&!F))KCG7777770           ((((( @@@@@ 8 8 8555         r rrc"eZdZdZfdZxZS)ImageFileDescriptorz Just like the FileDescriptor, but for ImageFields. The only difference is assigning the width/height to the width_field/height_field, if appropriate. c|j|jj}t ||||j|ddSdS)NT)force)rVrrrErroupdate_dimension_fields)rrrn previous_filers rrozImageFileDescriptor.__set__sg )--dj.@AA  %(((  $ J . .xt . D D D D D % $r )r[r\r]rpror`ras@rrr|sK EEEEEEEEEr rc&eZdZdZdfd ZxZS)ImageFieldFilect|j|jj||j|jj|jj<dSr&)rDrrrErrVrFs rrHz&ImageFieldFile._set_instance_attributes9 tz17;;;6:Y tz1222r Tcnt|dr|`t|dS)N_dimensions_cache)r"rrrO)rrLrs rrOzImageFieldFile.deletes8 4, - - '& tr rZ)r[r\r]rHrOr`ras@rrrsL??? r rc|eZdZeZeZedZ d fd Z fdZ dZ fdZ fdZ d d Zfd ZxZS) ImageFieldImageNc \||c|_|_tj||fi|dSr&) width_field height_fieldrr)rr~rrrrrs rrzImageField.__init__s>/:<+$+t66v66666r c bgtjdi||Sr)rr_check_image_library_installedrs rrzImageField.checks? UWW] $ $V $ $  0 0 2 2  r cf ddlm}gS#t$rtjdd|dgcYSwxYw)Nr)rz6Cannot use ImageField because Pillow is not installed.z]Get Pillow at https://pypi.org/project/Pillow/ or run command "python -m pip install Pillow".z fields.E210)rrr)PILr ImportErrorrr)rrs rrz)ImageField._check_image_library_installedsv  ! ! ! ! ! !I    LI$     s  #00ct\}}}}|jr |j|d<|jr |j|d<||||fS)Nrr)rrrr)rrr;rrrs rrzImageField.deconstructs`#(77#6#6#8#8 dD&   5$($4F= !   7%)%6F> "T4''r c tj||fi||jjs6|js|jr*t j|j |dSdSdS)N)sender) rr_metaabstractrrr post_initconnectrrs rrzImageField.contribute_to_classs##C88888 y! Pt'7 P4;L P   % %d&B3 % O O O O O P P P Pr Fc|jp|j}|r|j|jvrdSt ||j}|s|sdS|jrt ||j p|jot ||j }|r|sdS|r|j}|j} nd}d} |jrt||j||jrt||j| dSdS)a Update field's width and height fields, if defined. This method is hooked up to model's post_init signal to update dimensions after instantiating a model instance. However, dimensions won't be updated if the dimensions fields are already populated. This avoids unnecessary recalculation when loading an object from the database. Dimensions can be forced to update with force=True, which is how ImageFileDescriptor.__set__ calls this method. N)rrrErVr0widthheightrD) rrrrrhas_dimension_fieldsr6dimension_fields_filledrrs rrz"ImageField.update_dimension_fieldss. $/D43D# t|8;L'L'L F x.. E  F  Igh8H&I&I"I P!N'(DrsZ------44444444......>>>>>>>>666666$$$$$$888888))))))::::::------666666&&&&&&F*F*F*F*F*jF*F*F*RL6L6L6L6L6&L6L6L6^M M M M M M M M `EEEEE.EEE.     Y   y y y y y y y y y y r