Tools) 6.0.5 I noticed that when running Scaffold-DbContext , a table in the database is completely ignored and no class for it is being ...
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Scaffold-DbContextignorestableafterupdatingtoEFCoretools6.0.5
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AfterupdatingfromEFCoreTools5toEFCoretools(Microsoft.EntityFrameworkCore.Tools)6.0.5InoticedthatwhenrunningScaffold-DbContext,atableinthedatabaseiscompletelyignoredandnoclassforitisbeinggenerated.ThedatabasestructureisrathercomplexsoIdon'tknowwhatexactlycausesthisproblembuttheclasswhichwasgeneratedinpreviousversionsoftheEFCoretoolslookedlikethis:
publicpartialclassTableName
{
publicstringId{get;set;}
publicintTypeId{get;set;}
publicvirtualRelatedTable1Related1{get;set;}
publicvirtualRelatedTable2Related2{get;set;}
}
WheninspectingthegeneratedcodeinOnModelCreating,Ifoundoutthatthetoolsareinfactawareoftheexistenceofthistable.Forexample,inthemodelBuildercodeforanothertablewhichisrelatedtothemissingtable,aUsingEntitycalllikethisisbeingadded:
entity.HasMany(d=>d.Types)
.WithMany(p=>p.Related1)
.UsingEntity>(
"TableName",
l=>l.HasOne().WithMany().HasForeignKey("TypeId").OnDelete(DeleteBehavior.ClientSetNull).HasConstraintName("TBL_..."),
r=>r.HasOne().WithMany().HasForeignKey("Id").OnDelete(DeleteBehavior.ClientSetNull).HasConstraintName("TBL_..."),
j=>
{
j.HasKey("Id","TypeId");
j.ToTable("...");
j.HasIndex(new[]{"TypeId"},"IX_T..._type_ID");
j.IndexerProperty("Id").HasMaxLength(50).HasColumnName("id");
j.IndexerProperty("TypeId").HasColumnName("type_ID");
});
Whydoesitdecidetodothisinsteadofgeneratingaclassforthistable?Didanyoneexperiencesimilarproblemslikethisandhasanideawhatcausesthisproblemandwhatcanbedoneaboutit?
UPDATE:
AfterlookingthroughthebreakingchangesinEFCore6,Ifoundthischangewhichmightbeexactlywhatcausesthisprobleminmyproject.However,Idon'tyetfullyunderstandhowIamsupposedtoupdatemycodesoIdon'thavetodowngradeagainoraddanyadditionalstepstodoeverytimeIrunScaffold-DbContextagain.
c#sql-serverentity-framework-corescaffoldingef-core-6.0
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editedMay18at8:51
Chris
askedMay18at8:14
ChrisChris
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Thisisduetomanytomanytablessupportinscaffolding.YoucandisableinEFCorePowerToolstogetpreviousmodelgenerated.
– ErikEJ
May18at10:31
Readingthedocumentation,itsuggeststhisbehavioronlyapplieswhenthejointabledoesn'thaveanyadditionalattributes,justthe2FK's.Maybeifyouaddanattributetothejoinentity,EFrevertstotheoldbehavior?
– pjs
May18at10:49
@ErikEJCouldyouexplainwhereexactlythiscanbedisabledinEFCorePowerTools?
– Chris
May18at10:58
@pjsProbably,butthisjustdoesnotseemlikeagoodsolutiontome.Unlessthereisanoptiontoreverttotheoldbehavior,I'dprefertoadaptmyapplicationcodetowhateverMicrosoftthinkswouldbethe"correct"waytohandlethis.Unfortunately,IdonotreallyunderstandwhatMicrosoftexpectsadevelopertodohere.
– Chris
May18at13:30
@ChrisYoucandisablethemaytomanymappingandjusthavetheproperentityM2Mentitygenerated
– ErikEJ
May18at18:14
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