Ñò ©ÃãMc @säddklZddklZlZlZddklZlZddk l Z ddk l Z ddk lZdefd„ƒYZd „Zd „Zd „ZedƒZd „Zd „Zd„Zdefd„ƒYZdS(iÿÿÿÿ(t attrgetter(t connectionst transactiontIntegrityError(tsignalstsql(tGET_ITERATOR_CHUNK_SIZE(t SortedDict(twrapstProtectedErrorcBseZd„ZRS(cCs ||_ti|||ƒdS(N(tprotected_objectsRt__init__(tselftmsgR ((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyR s (t__name__t __module__R (((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyR scCsb|i|d|iid|id|iƒ|io)t|ii o|i|d|ƒndS(Ntsourcet source_attrtnullable( tcollecttrelttotnametnullRtfeaturestcan_defer_constraint_checkstadd_field_updatetNone(t collectortfieldtsub_objstusing((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pytCASCADEscCs6td|iii|dii|if|ƒ‚dS(NsoCannot delete some instances of model '%s' because they are referenced through a protected foreign key: '%s.%s'i(R RRRt __class__R(RRRR((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pytPROTECTs#cs3tˆƒo‡fd†}n‡fd†}|S(Ncs|i|ˆƒ|ƒdS(N(R(RRRR(tvalue(sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyt set_on_delete#scs|i|ˆ|ƒdS(N(R(RRRR(R#(sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyR$&s(tcallable(R#R$((R#sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pytSET!s cCs|i||iƒ|ƒdS(N(Rt get_default(RRRR((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyt SET_DEFAULT.scCsdS(N((RRRR((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyt DO_NOTHING2scstˆƒ‡fd†ƒ}|S(Ncs¤tid|iƒptid|iƒt}nt}zEˆ|||Ž|otid|iƒntid|iƒWd|otid|iƒnXdS(NR( Rt is_managedRtenter_transaction_managementtTruetFalsetcommittcommit_unless_managedtleave_transaction_management(R targstkwargstforced_managed(tfunc(sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyt decorated7s (R(R4R5((R4sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyt force_managed6st CollectorcBsweZd„Zd eed„Zd„Zd„Zd eed ed„Z d„Z d„Z d„Z e d„ƒZRS( cCs1||_h|_h|_h|_h|_dS(N(Rtdatatbatchest field_updatest dependencies(R R((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyR Ks     c CsÇ|pgSg}|di}|ii|tƒƒ}x,|D]$}||jo|i|ƒq>q>W|i|ƒ|dj oC| o;|o||}}n|ii|tƒƒi|ƒn|S(s9 Adds 'objs' to the collection of objects to be deleted. If the call is the result of a cascade, 'source' should be the model that caused it, and 'nullable' should be set to True if the relation can be null. Returns a list of all objects that were not already collected. iN( R!R8t setdefaulttsettappendtupdateRR;tadd( R tobjsRRtreverse_dependencytnew_objstmodelt instancestobj((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyR@Ss   #cCs/|ii|hƒi|tƒƒi|ƒdS(s– Schedules a batch delete. Every instance of 'model' that is related to an instance of 'obj' through 'field' will be deleted. N(R9R<R=R?(R RDRRA((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyt add_batchmscCsN|pdS|di}|ii|hƒi||ftƒƒi|ƒdS(s‰ Schedules a field update. 'objs' must be a homogenous iterable collection of model instances (e.g. a QuerySet). Ni(R!R:R<R=R?(R RR#RARD((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyRts    c Csº|i|||d|ƒ}|pdS|di}xƒ|iiiƒD]o\} } | o\g} |D]} | t| | iƒqe~ } |i| d|d| ii dt dt ƒqGqGW|oõxŒ|ii dt ƒD]u}|i }|iiio|i|i||ƒq×|i||ƒ}|pq×n|ii||||iƒq×Wxc|iiD]Q}|iip>|i||iƒ}|i|d|d|ii dt ƒq]q]WndS( s  Adds 'objs' to the collection of objects to be deleted as well as all parent instances. 'objs' must be a homogenous iterable collection of model instances (e.g. a QuerySet). If 'collect_related' is True, related objects will be handled by their respective on_delete handler. If the call is the result of a cascade, 'source' should be the model that caused it and 'nullable' should be set to True, if the relation can be null. If 'reverse_dependency' is True, 'source' will be deleted before the current model, rather than after. (Needed for cascading to parent models, the one case in which the cascade follows the forwards direction of an FK rather than the reverse direction.) RBNiRRtcollect_relatedtinclude_hiddenR(R@R!t_metatparentst iteritemstgetattrRRRt related_nameR-R,tget_all_related_objectsRRDt auto_createdRGtrelated_objectst on_deleteRt many_to_manytthroughtbulk_related_objects(R RARRRHRRBRCRDt parent_modeltptrt_[1]RFt parent_objstrelatedRRtrelation((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyR€s>   -       cCs0|iii|iƒih|d|ii6S(s_ Gets a QuerySet of objects related to ``objs`` via the relation ``related``. s%s__in(RDt _base_managerRtfilterRR(R RZRA((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pyRQ¸sccs@x9|iiƒD](\}}x|D]}||fVq#WqWdS(N(R8RL(R RDRERF((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pytinstances_with_modelÁs  cCsèg}|iiƒ}x•t|ƒt|ƒjo{t}xb|D]Z}||joq>n|ii|ƒ}|o |i|ƒp|i|ƒt}q>q>W|pdSqWt g}|D]}|||i|fq»~ƒ|_dS(N( R8tkeystlenR-R;tgett differenceR>R,R(R t sorted_modelstmodelstfoundRDR;RX((sC/usr/local/lib/python2.6/dist-packages/django/db/models/deletion.pytsortÆs"    cCs8x<|iiƒD]+\}}t|dtdƒƒ|i|s