....................................../////.===Shadow-Here===./////................................................ > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < > < ------------------------------------------------------------------------------------------------------------------- /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// RIFF¤ WEBPVP8 ˜ ðÑ *ôô>‘HŸK¥¤"§£±¨àð enü¹%½_F‘åè¿2ºQú³íªú`N¿­3ÿƒügµJžaÿ¯ÿ°~¼ÎùnúîÞÖô•òíôÁÉß®Sm¥Ü/ ‡ó˜f£Ùà<˜„xëJ¢Ù€SO3x<ªÔ©4¿+ç¶A`q@Ì“Úñè™ÍÿJÌ´ª-˜ÆtÊÛL]Ïq*‘Ý”ì#ŸÌÏãY]@ê`¿ /ªfkØB4·®£ó z—Üw¥Pxù–ÞLШKÇN¾AkÙTf½è'‰g gÆv›Øuh~ a˜Z— ïj*á¥t d£“uÒ ¨`K˜¹ßþ]b>˜]_ÏÔ6W—è2r4x•íÖ…"ƒÖNîä!¦å Ú}ýxGøÌ —@ ;ÆÚŠ=ɾ1ý8lªË¥ô ^yf®Œ¢u&2©nÙÇ›ñÂñŒ³ aPo['½»øFùà­+4ê“$!lövlüÞ=;N®3ð‚õ›DÉKòÞ>ÄÍ ¥ˆuߤ#ˆ$6ù™¥îŠ‡y’ÍB¼ çxÛ;X"WL£R÷͝*ó-¶Zu}º.s¸sšXqù–DþÿvªhüïwyŸ ¯é³lÀ:KCûÄ£Ëá\…­ ~—ýóî ¼ûûÜTÓüÇy…ŽÆvc»¾×U ñ¸žþоP÷¦ó:Ò¨¨5;Ð#&#ÖúñläÿÁœ GxÉ­/ñ‡áQðìYÉtÒwŽ¼GÔ´zàÒò ð*ëzƒ•4~H]Ø‹f ñÓÈñ`NåWçs'ÆÏW^ø¹!XžµmQ5ÃËoLœÎ: ÞËÍ¥J ù…î èo£ßPÎñ¶ž8.Œ]ʵ~5›ÙË-ù*8ÙÖß±~ ©¹rÓê‚j¶d¸{^Q'˜±Crß ÚH—#¥¥QlÀ×ëã‡DÜ«èî þ&Çæžî;ŽÏºò6ÒLÃXy&ZŒ'j‚¢Ù€IßÚù+–MGi‰*jE€‘JcÜ ÓÌ EÏÚj]o˜ Þr <¾U ûŪæÍ/šÝH¥˜b”¼ ÁñßX GP›ï2›4WŠÏà×£…íÓk†¦H·ÅíMh–*nó÷à]ÁjCº€b7<ب‹¨5車bp2:Á[UªM„QŒçiNMa#<5›áËó¸HýÊ"…×Éw¹¦ì2º–x<›»a±¸3Weü®FÝ⑱ö–î–³|LPÈ~çð~Çå‡|º kD¢µÏàÆAI %1À% ¹Ò – ”ϝS¦‰4&¶£°à Öý”û_Ò Áw°A«Å€?mÇÛgHÉ/8)á¾ÛìáöŽP í¨PŸNÙµº¦‡§Ùš"ÿ«>+ªÕ`Ê÷‡‚ß Õû˜þãÇ-PÍ.¾XV‘€ dÜ"þ4¹ ±Oú‘©t¥¦FªÄÃÄ•b‚znýu½—#cDs˜ÃiÑOˆñ×QO=*IAÊ,¶ŽZƒ;‡wøXè%EÐk:F±Ú” .Ѽ+Áu&Ç`."pÈÉw o&¿dE6‘’EqTuK@Ì¥ã™À(Êk(h‰,H}RÀIXÛš3µ1©_OqÚÒJAñ$ÊÙÜ;D3çŒ[þùœh¬Ã³™ö6ç†NY".Ú‰ï[ªŸŒ '²Ð öø_¨ÂÉ9u鶳ÒŠõTàîMØ#û¯gN‡bÙ놚X„ö …ÉeüÌ^J ‹€.œ$Æ)βÄeæW#óüßĺŸ€ ÀzwV 9oä»f4V*uB «Ë†¹ì¯žR霓æHXa=&“I4K;¯ç‹h×·"UŠ~<•â•ªVêª&ÍSÃÆÅ?ÔqÎ*mTM ˜›µwêd#[C¡©§‘D<©àb†–ÁœøvH/,í:¯( ²£|4-„Æövv„Yͼ™^Á$ˆ„¢Û[6yB.åH*V¨æ?$=˜Ñ€•î¦ñ·­(VlŸ‘ nÀt8W÷´Bûba?q9ú¶Xƒl«ÿ\ù¶’þòUÐj/õ¢Ìµ³g$ƒÎR!¸»|Oߍë’BhîÚÑ¢ñåŒJ„®„£2Ð3•ô02Nt…!£Í]Ïc½Qÿ?ˆ<&ÃA¾Ú,JˆijÌ#5yz„‰Î|ÊŽ5QÏ:‹ÐaóVÔxW—CpeÏzÐïíçôÿÅ_[hãsÐ_/ŽTÝ?BîˆííV$<¿i>²F¬_Eß¿ †bÊŒº­ÿ®Z H“C}”¬,Mp ý/Bá£w>˜YV°aƒúh+cŠ- r/[%|üUMHäQ°X»|û/@|°¥Ð !BÔ Ç¢Ä©š+Õì D«7ìN¶ŽðÔ " ƶ’ÖçtA‰Û×}{tþz­¾GÍ›k¹OEJR$ Â׃ «ëÁ"oÉôž$oUK(Ä)Ãz³Ê-‹êN[Ò3Œñbï8P 4ƒ×q¢bo|?<ÛX¬òÄÍ°L–±›(™ûG?ýË©ÚÄ–ÂDØÐ_Ç¡ô ¾–ÄÏø ×e8Ë©$ÄF¹Å‹ì[©óìl:F¾f´‹‹Xì²ï®\¬ôùƒ ÿat¥óèÒùHß0äe‚;ü×h:ÆWðHž=Ã8骣"kœ'Y?³}Tûè€>?0l›e1Lòñ„aæKÆw…hÖŠùW…ÈÆÄ0ši·›[pcwËþñiêíY/~-Á5˜!¿†A›™Mÿþ(±“t@â“ö2­´TG5yé]çå僳 .·ÍïçÝ7UÚ±Ð/Nè»,_Ï ùdj7\ï Wì4›„»c¸àešg#ÒÊ⥭áØo5‘?ÌdÝô¯ ¹kzsƒ=´#ëÉK›Ø´±-¥eW?‡çßtòTã…$Ý+qÿ±ƒ÷_3Ô¥í÷:æ–ž<·Ö‡‰Å¢ š‡%Ô—utÌÈìðžgÖÀz²À—ï÷Óîäõ{K'´È÷³yaÏÁjƒô}ž§®æÊydÕÈë5¯èˆõvÕ©ã*çD„ “z„Ó‡^^xÂ3M§A´JG‚öï 3W'ˆ.OvXè¡ÊÕª?5º7†˜(˜Ç¶#çê’¶!ÌdZK§æ 0fãaN]òY³RV ™î$®K2R¨`W!1Ôó\;Ý ýB%qæK•&ÓÈe9È0êI±žeŸß -ú@žQr¦ ö4»M¼Áè¹µmw 9 EÆE_°2ó„ŸXKWÁ×Hóì^´²GѝF©óäR†¦‰ç"V»eØ<3ùd3ÿÚ¤Žú“Gi" —‘_ÙËÎ~Üö¯¥½Î»üŸEÚŽåmÞþí ;ÞólËΦMzA"Âf(´òá;Éï(/7½ûñÌ­cïÕçлþÝz¾-ÍvÑ“pH­–ðÓj$¸Äû¤‚‘ãUBË-n“2åPkS5&‹Â|+g^œ®Ì͆d!OïäîU«c;{Û!ÅŽ«ëZ9Ókóˆ]¯ƒ›né `ÇÒ+tÆš (ØKá¾—=3œ®•vuMñg²\ï Ec€ 05±d™‡×iÇ×›UúvÌ¢£Èþ¡ÕØô¶ßÎA"ß±#Ö²ˆÊŸ¦*Ä~ij|àø.-¼'»Ú¥£h ofº¦‡VsR=N½„Î v˜Z*SÌ{=jÑB‹tê…;’HžH¯8–îDù8ñ¢|Q•bÛçš–‹m³“ê¨ åÏ^m¬Žãþ©ïêO‡½6] µÆ„Ooòü ²x}N¦Ë3ïé¿»€›HA˜m%çÞ/¿í7Fø“‹léUk)É°Œµ8Q8›:ÀŠeT*šõ~ôڝG6 ¢}`ùH­–”¡k ‰P1>š†®9z11!X wKfmÁ¦xÑ,N1Q”–æB¶M…ÒÃv6SMˆhU¬ÊPŽï‘öj=·CŒ¯u¹ƒVIЃsx4’ömÛýc塶7ßŠß 57^\wÒÐÆ k§h,Œý î«q^R½3]J¸ÇðN ‚çU¬ôº^Áì} ³f©Õœ§ˆã:FÄÈ‚é(€™?àýÓüè1Gô£¼éj‚OÅñ  #>×—ßtà 0G¥Åa뀐kßhc™À_ÉñÞ#±)GD" YîäË-ÿÙ̪ ¹™a¯´¢E\ÝÒö‚;™„ë]_ p8‰o¡ñ+^÷ 3‘'dT4œŽ ðVë½° :¬víÑ«£tßÚS-3¶“þ2 †üüʨòrš¹M{É_¤`Û¨0ìjœøJ‡:÷ÃáZ˜†@GP&œÑDGÏs¡þ¦þDGú‘1Yá9Ôþ¼ ûø…§÷8&–ÜÑnÄ_m®^üÆ`;ÉVÁJ£?â€-ßê}suÍ2sõA NÌúA磸‘îÿÚ»ƒìö·á¿±tÑÐ"Tÿü˜[@/äj¬€uüªìù¥Ý˜á8Ý´sõj 8@rˆð äþZÇD®ÿUÏ2ùôõrBzÆÏÞž>Ì™xœ“ wiÎ×7_… ¸ \#€MɁV¶¥üÕÿPÔ9Z‡ø§É8#H:ƒ5ÀÝå9ÍIŒ5åKÙŠ÷qÄ>1AÈøžj"µÂд/ªnÀ qªã}"iŸBå˜ÓÛŽ¦…&ݧ;G@—³b¯“•"´4í¨ôM¨åñC‹ïùÉó¯ÓsSH2Ý@ßáM‡ˆKÀªÛUeø/4\gnm¥‹ŸŒ qÄ b9ÞwÒNÏ_4Ég³ú=܆‚´ •â¥õeíþkjz>éÚyU«Íӝ݃6"8/ø{=Ô¢»G¥ äUw°W«,ô—¿ãㆅү¢³xŠUû™yŒ (øSópÐ 9\åTâ»—*oG$/×ÍT†Y¿1¤Þ¢_‡ ¼ „±ÍçèSaÓ 3ÛMÁBkxs‰’R/¡¤ˆÙçª(*õ„üXÌ´ƒ E§´¬EF"Ù”R/ÐNyÆÂ^°?™6¡œïJ·±$§?º>ÖüœcNÌù¯G ‹ñ2ŠBB„^·úìaz¨k:#¨Æ¨8LÎõލ£^§S&cŒÐU€ü(‡F±Š¼&P>8ÙÁ ‰ p5?0ÊƃZl¸aô š¼¡}gÿ¶zÆC²¹¬ÎÖG*HB¡O<º2#ñŒAƒ–¡B˜´É$¥›É:FÀÔx¾u?XÜÏÓvN©RS{2ʈãk9rmP¼Qq̳ è¼ÐFׄ^¡Öì fE“F4A…!ì/…¦Lƒ… … $%´¾yã@CI¬ á—3PþBÏNÿ<ý°4Ü ËÃ#ØÍ~âW«rEñw‹eùMMHß²`¬Öó½íf³:‹k˜¯÷}Z!ã¿<¥,\#öµÀ¯aÒNÆIé,Ћ–lŽ#Àæ9ÀÒS·I’½-Ïp Äz¤Š Â* ­íÄ9­< h>׍3ZkËU¹§˜ŒŠ±f­’¤º³Q ÏB?‹#µíÃ¥®@(Gs«†vI¥Mµ‹Á©e~2ú³ÁP4ìÕi‚²Ê^ö@-DþÓàlÜOÍ]n"µã:žpsŽ¢:! Aõ.ç~ÓBûH÷JCÌ]õVƒd «ú´QÙEA–¯¯Œ!.ˆˆëQ±ù œ·Ì!Õâ )ùL„ÅÀlÚè5@B…o´Æ¸XÓ&Û…O«˜”_#‡ƒ„ûÈt!¤ÁÏ›ÎÝŠ?c9 â\>lÓÁVÄÑ™£eØY]:fÝ–—ù+p{™ðè û³”g±OƒÚSù£áÁÊ„ä,ï7š²G ÕÌBk)~ÑiCµ|h#u¤¶îK¨² #²vݯGãeÖ϶ú…¾múÀ¶þÔñ‚Š9'^($¤§ò “š½{éúp÷J›ušS¹áªCÂubÃH9™D™/ZöØÁ‡¦ÝÙŸ·kð*_”.C‹{áXó€‡c¡c€§/šò/&éš÷,àéJþ‰X›fµ“C¨œ®r¬"kL‰Â_q…Z–.ÉL~O µ›zn‚¹À¦Öª7\àHµšÖ %»ÇníV[¥*Õ;ƒ#½¾HK-ÖIÊdÏEÚ#=o÷Óò³´Š: Ç?{¾+9›–‘OEáU·S€˜j"ÄaÜ ŒÛWt› á–c#a»pÔZÞdŽtWê=9éöÊ¢µ~ ë ;Öe‡Œ®:bî3±ýê¢wà¼îpêñ¹¾4 zc¾ðÖÿzdêŒÑÒŝÀ‰s6¤í³ÎÙB¿OZ”+F¤á‡3@Ñëäg©·Ž ˆèª<ù@É{&S„œÕúÀA)‰h:YÀ5^ÂÓŒ°õäU\ ùËÍû#²?Xe¬tu‰^zÒÔãë¼ÛWtEtû …‚g¶Úüâî*moGè¨7%u!]PhÏd™Ý%Îx: VÒ¦ôÊD3ÀŽKÛËãvÆî…N¯ä>Eró–ð`5 Œ%u5XkñÌ*NU%¶áœÊ:Qÿú»“úzyÏ6å-၇¾ ´ ÒÊ]y žO‘w2Äøæ…H’²f±ÎÇ.ª|¥'gîV•Ü .̘¯€šòü¤U~Ù†*¢!?ò wý,}´°ÔÞnïoKq5µb!áÓ3"vAßH¡³¡·G(ÐÎ0Îò¼MG!/ài®@—¬04*`…«é8ªøøló“ˆÊ”èù¤…ßÊoÿé'ËuÌÖ5×È¡§ˆˆfŽë9}hìâ_!!¯  B&Ëö¶‰ÀAÙNVŸ Wh›¸®XÑJì¨ú“¿÷3uj²˜¨ÍÎìë±aúŠÝå¯ð*Ó¨ôJ“yºØ)m°WýOè68†ŸÏ2—‰Ïüꪫٚ¥‹l1 ø ÏÄFjêµvÌbü¦èÝx:X±¢H=MÐß—,ˆÉÇ´(9ú¾^ÅÚ4¿m‡$âX‘å%(AlZo@½¨UOÌÕ”1ø¸jÎÀÃÃ_ µ‘Ü.œº¦Ut: Æï’!=¯uwû#,“pþÇúŒø(é@?³ü¥‘Mo §—s@Œ#)§ŒùkL}NOÆêA›¸~r½¼ÙA—HJ«eˆÖ´*¡ÓpÌŸö.m<-"³ûÈ$¬_6­åf£ïÚâj1y§ÕJ½@dÞÁr&Í\Z%D£Íñ·AZ Û³øüd/ªAi†/Й~  ‡âĮҮÏh§°b—›Û«mJžòG'[ÈYýŒ¦9psl ýÁ ®±f¦x,‰½tN ‚Xª9 ÙÖH.«Lo0×?͹m¡å†Ѽ+›2ƒF ±Ê8 7Hցϓ²Æ–m9…òŸï]Â1äN†VLâCˆU .ÿ‰Ts +ÅÎx(%¦u]6AF Š ØF鈄‘ |¢¶c±soŒ/t[a¾–û:s·`i햍ê›ËchÈ…8ßÀUÜewŒðNOƒõD%q#éû\9¤x¹&UE×G¥ Í—™$ð E6-‡¼!ýpãÔM˜ Âsìe¯ñµK¢Ç¡ùôléœ4Ö£”À Š®Ðc ^¨À}ÙËŸ§›ºê{ÊuÉC ×Sr€¤’fÉ*j!úÓ’Gsùìoîßîn%ò· àc Wp÷$¨˜)û»H ×8ŽÒ€Zj¤3ÀÙºY'Ql¦py{-6íÔCeiØp‘‡XÊîÆUߢ܂ž£Xé¼Y8þ©ëgñß}é.ÎógÒ„ÃØËø¯»™§Xýy M%@NŠ À(~áÐvu7&•,Ù˜ó€uP‡^^®=_E„jt’ 403WebShell
403Webshell
Server IP : 66.29.146.187  /  Your IP : 216.73.216.167
Web Server : LiteSpeed
System : Linux premium302.web-hosting.com 4.18.0-553.54.1.lve.el8.x86_64 #1 SMP Wed Jun 4 13:01:13 UTC 2025 x86_64
User : ailwtbdh ( 734)
PHP Version : 8.1.34
Disable Function : NONE
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /opt/imunify360/venv/lib64/python3.11/site-packages/playhouse/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /opt/imunify360/venv/lib64/python3.11/site-packages/playhouse/dataset.py
import csv
import datetime
from decimal import Decimal
import json
import operator
try:
    from urlparse import urlparse
except ImportError:
    from urllib.parse import urlparse
import sys
import uuid

from peewee import *
from playhouse.db_url import connect
from playhouse.migrate import migrate
from playhouse.migrate import SchemaMigrator
from playhouse.reflection import Introspector

if sys.version_info[0] == 3:
    basestring = str
    from functools import reduce
    def open_file(f, mode, encoding='utf8'):
        return open(f, mode, encoding=encoding)
else:
    def open_file(f, mode, encoding='utf8'):
        return open(f, mode)


class DataSet(object):
    def __init__(self, url, include_views=False, **kwargs):
        if isinstance(url, Database):
            self._url = None
            self._database = url
            self._database_path = self._database.database
        else:
            self._url = url
            parse_result = urlparse(url)
            self._database_path = parse_result.path[1:]

            # Connect to the database.
            self._database = connect(url)

        # Open a connection if one does not already exist.
        self._database.connect(reuse_if_open=True)

        # Introspect the database and generate models.
        self._introspector = Introspector.from_database(self._database)
        self._include_views = include_views
        self._models = self._introspector.generate_models(
            skip_invalid=True,
            literal_column_names=True,
            include_views=self._include_views,
            **kwargs)
        self._migrator = SchemaMigrator.from_database(self._database)

        class BaseModel(Model):
            class Meta:
                database = self._database
        self._base_model = BaseModel
        self._export_formats = self.get_export_formats()
        self._import_formats = self.get_import_formats()

    def __repr__(self):
        return '<DataSet: %s>' % self._database_path

    def get_export_formats(self):
        return {
            'csv': CSVExporter,
            'json': JSONExporter,
            'tsv': TSVExporter}

    def get_import_formats(self):
        return {
            'csv': CSVImporter,
            'json': JSONImporter,
            'tsv': TSVImporter}

    def __getitem__(self, table):
        if table not in self._models and table in self.tables:
            self.update_cache(table)
        return Table(self, table, self._models.get(table))

    @property
    def tables(self):
        tables = self._database.get_tables()
        if self._include_views:
            tables += self.views
        return tables

    @property
    def views(self):
        return [v.name for v in self._database.get_views()]

    def __contains__(self, table):
        return table in self.tables

    def connect(self, reuse_if_open=False):
        self._database.connect(reuse_if_open=reuse_if_open)

    def close(self):
        self._database.close()

    def update_cache(self, table=None):
        if table:
            dependencies = [table]
            if table in self._models:
                model_class = self._models[table]
                dependencies.extend([
                    related._meta.table_name for _, related, _ in
                    model_class._meta.model_graph()])
            else:
                dependencies.extend(self.get_table_dependencies(table))
        else:
            dependencies = None  # Update all tables.
            self._models = {}
        updated = self._introspector.generate_models(
            skip_invalid=True,
            table_names=dependencies,
            literal_column_names=True,
            include_views=self._include_views)
        self._models.update(updated)

    def get_table_dependencies(self, table):
        stack = [table]
        accum = []
        seen = set()
        while stack:
            table = stack.pop()
            for fk_meta in self._database.get_foreign_keys(table):
                dest = fk_meta.dest_table
                if dest not in seen:
                    stack.append(dest)
                    accum.append(dest)
        return accum

    def __enter__(self):
        self.connect()
        return self

    def __exit__(self, exc_type, exc_val, exc_tb):
        if not self._database.is_closed():
            self.close()

    def query(self, sql, params=None):
        return self._database.execute_sql(sql, params)

    def transaction(self):
        return self._database.atomic()

    def _check_arguments(self, filename, file_obj, format, format_dict):
        if filename and file_obj:
            raise ValueError('file is over-specified. Please use either '
                             'filename or file_obj, but not both.')
        if not filename and not file_obj:
            raise ValueError('A filename or file-like object must be '
                             'specified.')
        if format not in format_dict:
            valid_formats = ', '.join(sorted(format_dict.keys()))
            raise ValueError('Unsupported format "%s". Use one of %s.' % (
                format, valid_formats))

    def freeze(self, query, format='csv', filename=None, file_obj=None,
               encoding='utf8', **kwargs):
        self._check_arguments(filename, file_obj, format, self._export_formats)
        if filename:
            file_obj = open_file(filename, 'w', encoding)

        exporter = self._export_formats[format](query)
        exporter.export(file_obj, **kwargs)

        if filename:
            file_obj.close()

    def thaw(self, table, format='csv', filename=None, file_obj=None,
             strict=False, encoding='utf8', **kwargs):
        self._check_arguments(filename, file_obj, format, self._export_formats)
        if filename:
            file_obj = open_file(filename, 'r', encoding)

        importer = self._import_formats[format](self[table], strict)
        count = importer.load(file_obj, **kwargs)

        if filename:
            file_obj.close()

        return count


class Table(object):
    def __init__(self, dataset, name, model_class):
        self.dataset = dataset
        self.name = name
        if model_class is None:
            model_class = self._create_model()
            model_class.create_table()
            self.dataset._models[name] = model_class

    @property
    def model_class(self):
        return self.dataset._models[self.name]

    def __repr__(self):
        return '<Table: %s>' % self.name

    def __len__(self):
        return self.find().count()

    def __iter__(self):
        return iter(self.find().iterator())

    def _create_model(self):
        class Meta:
            table_name = self.name
        return type(
            str(self.name),
            (self.dataset._base_model,),
            {'Meta': Meta})

    def create_index(self, columns, unique=False):
        index = ModelIndex(self.model_class, columns, unique=unique)
        self.model_class.add_index(index)
        self.dataset._database.execute(index)

    def _guess_field_type(self, value):
        if isinstance(value, basestring):
            return TextField
        if isinstance(value, (datetime.date, datetime.datetime)):
            return DateTimeField
        elif value is True or value is False:
            return BooleanField
        elif isinstance(value, int):
            return IntegerField
        elif isinstance(value, float):
            return FloatField
        elif isinstance(value, Decimal):
            return DecimalField
        return TextField

    @property
    def columns(self):
        return [f.name for f in self.model_class._meta.sorted_fields]

    def _migrate_new_columns(self, data):
        new_keys = set(data) - set(self.model_class._meta.fields)
        new_keys -= set(self.model_class._meta.columns)
        if new_keys:
            operations = []
            for key in new_keys:
                field_class = self._guess_field_type(data[key])
                field = field_class(null=True)
                operations.append(
                    self.dataset._migrator.add_column(self.name, key, field))
                field.bind(self.model_class, key)

            migrate(*operations)

            self.dataset.update_cache(self.name)

    def __getitem__(self, item):
        try:
            return self.model_class[item]
        except self.model_class.DoesNotExist:
            pass

    def __setitem__(self, item, value):
        if not isinstance(value, dict):
            raise ValueError('Table.__setitem__() value must be a dict')

        pk = self.model_class._meta.primary_key
        value[pk.name] = item

        try:
            with self.dataset.transaction() as txn:
                self.insert(**value)
        except IntegrityError:
            self.dataset.update_cache(self.name)
            self.update(columns=[pk.name], **value)

    def __delitem__(self, item):
        del self.model_class[item]

    def insert(self, **data):
        self._migrate_new_columns(data)
        return self.model_class.insert(**data).execute()

    def _apply_where(self, query, filters, conjunction=None):
        conjunction = conjunction or operator.and_
        if filters:
            expressions = [
                (self.model_class._meta.fields[column] == value)
                for column, value in filters.items()]
            query = query.where(reduce(conjunction, expressions))
        return query

    def update(self, columns=None, conjunction=None, **data):
        self._migrate_new_columns(data)
        filters = {}
        if columns:
            for column in columns:
                filters[column] = data.pop(column)

        return self._apply_where(
            self.model_class.update(**data),
            filters,
            conjunction).execute()

    def _query(self, **query):
        return self._apply_where(self.model_class.select(), query)

    def find(self, **query):
        return self._query(**query).dicts()

    def find_one(self, **query):
        try:
            return self.find(**query).get()
        except self.model_class.DoesNotExist:
            return None

    def all(self):
        return self.find()

    def delete(self, **query):
        return self._apply_where(self.model_class.delete(), query).execute()

    def freeze(self, *args, **kwargs):
        return self.dataset.freeze(self.all(), *args, **kwargs)

    def thaw(self, *args, **kwargs):
        return self.dataset.thaw(self.name, *args, **kwargs)


class Exporter(object):
    def __init__(self, query):
        self.query = query

    def export(self, file_obj):
        raise NotImplementedError


class JSONExporter(Exporter):
    def __init__(self, query, iso8601_datetimes=False):
        super(JSONExporter, self).__init__(query)
        self.iso8601_datetimes = iso8601_datetimes

    def _make_default(self):
        datetime_types = (datetime.datetime, datetime.date, datetime.time)

        if self.iso8601_datetimes:
            def default(o):
                if isinstance(o, datetime_types):
                    return o.isoformat()
                elif isinstance(o, (Decimal, uuid.UUID)):
                    return str(o)
                raise TypeError('Unable to serialize %r as JSON' % o)
        else:
            def default(o):
                if isinstance(o, datetime_types + (Decimal, uuid.UUID)):
                    return str(o)
                raise TypeError('Unable to serialize %r as JSON' % o)
        return default

    def export(self, file_obj, **kwargs):
        json.dump(
            list(self.query),
            file_obj,
            default=self._make_default(),
            **kwargs)


class CSVExporter(Exporter):
    def export(self, file_obj, header=True, **kwargs):
        writer = csv.writer(file_obj, **kwargs)
        tuples = self.query.tuples().execute()
        tuples.initialize()
        if header and getattr(tuples, 'columns', None):
            writer.writerow([column for column in tuples.columns])
        for row in tuples:
            writer.writerow(row)


class TSVExporter(CSVExporter):
    def export(self, file_obj, header=True, **kwargs):
        kwargs.setdefault('delimiter', '\t')
        return super(TSVExporter, self).export(file_obj, header, **kwargs)


class Importer(object):
    def __init__(self, table, strict=False):
        self.table = table
        self.strict = strict

        model = self.table.model_class
        self.columns = model._meta.columns
        self.columns.update(model._meta.fields)

    def load(self, file_obj):
        raise NotImplementedError


class JSONImporter(Importer):
    def load(self, file_obj, **kwargs):
        data = json.load(file_obj, **kwargs)
        count = 0

        for row in data:
            if self.strict:
                obj = {}
                for key in row:
                    field = self.columns.get(key)
                    if field is not None:
                        obj[field.name] = field.python_value(row[key])
            else:
                obj = row

            if obj:
                self.table.insert(**obj)
                count += 1

        return count


class CSVImporter(Importer):
    def load(self, file_obj, header=True, **kwargs):
        count = 0
        reader = csv.reader(file_obj, **kwargs)
        if header:
            try:
                header_keys = next(reader)
            except StopIteration:
                return count

            if self.strict:
                header_fields = []
                for idx, key in enumerate(header_keys):
                    if key in self.columns:
                        header_fields.append((idx, self.columns[key]))
            else:
                header_fields = list(enumerate(header_keys))
        else:
            header_fields = list(enumerate(self.model._meta.sorted_fields))

        if not header_fields:
            return count

        for row in reader:
            obj = {}
            for idx, field in header_fields:
                if self.strict:
                    obj[field.name] = field.python_value(row[idx])
                else:
                    obj[field] = row[idx]

            self.table.insert(**obj)
            count += 1

        return count


class TSVImporter(CSVImporter):
    def load(self, file_obj, header=True, **kwargs):
        kwargs.setdefault('delimiter', '\t')
        return super(TSVImporter, self).load(file_obj, header, **kwargs)

Youez - 2016 - github.com/yon3zu
LinuXploit