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Recreate Surahs table without IDENTITY instead of unsupported ALTER COLUMN.
92 lines
3.9 KiB
C#
92 lines
3.9 KiB
C#
using Microsoft.EntityFrameworkCore.Migrations;
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#nullable disable
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namespace TafsirQuran.Infrastructure.Persistence.Migrations
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{
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/// <inheritdoc />
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public partial class SurahExplicitIds : Migration
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{
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/// <inheritdoc />
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protected override void Up(MigrationBuilder migrationBuilder)
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{
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// SQL Server cannot ALTER IDENTITY off a column; recreate Surahs without identity.
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migrationBuilder.Sql("""
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IF OBJECT_ID(N'[FK_Ayahs_Surahs_SurahId]', N'F') IS NOT NULL
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ALTER TABLE [Ayahs] DROP CONSTRAINT [FK_Ayahs_Surahs_SurahId];
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IF OBJECT_ID(N'[FK_Episodes_Surahs_SurahId]', N'F') IS NOT NULL
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ALTER TABLE [Episodes] DROP CONSTRAINT [FK_Episodes_Surahs_SurahId];
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IF OBJECT_ID(N'[Surahs]', N'U') IS NOT NULL
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BEGIN
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SELECT * INTO [#SurahsBackup] FROM [Surahs];
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DROP TABLE [Surahs];
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END
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CREATE TABLE [Surahs] (
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[Id] int NOT NULL,
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[Number] int NOT NULL,
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[NameAr] nvarchar(80) NOT NULL,
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[NameFa] nvarchar(80) NOT NULL,
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CONSTRAINT [PK_Surahs] PRIMARY KEY ([Id])
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);
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CREATE UNIQUE INDEX [IX_Surahs_Number] ON [Surahs] ([Number]);
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IF OBJECT_ID(N'tempdb..#SurahsBackup') IS NOT NULL
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BEGIN
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INSERT INTO [Surahs] ([Id], [Number], [NameAr], [NameFa])
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SELECT [Id], [Number], [NameAr], [NameFa] FROM [#SurahsBackup];
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DROP TABLE [#SurahsBackup];
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END
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ALTER TABLE [Ayahs] WITH CHECK ADD CONSTRAINT [FK_Ayahs_Surahs_SurahId]
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FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
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ALTER TABLE [Episodes] WITH CHECK ADD CONSTRAINT [FK_Episodes_Surahs_SurahId]
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FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
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""");
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}
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/// <inheritdoc />
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protected override void Down(MigrationBuilder migrationBuilder)
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{
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migrationBuilder.Sql("""
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IF OBJECT_ID(N'[FK_Ayahs_Surahs_SurahId]', N'F') IS NOT NULL
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ALTER TABLE [Ayahs] DROP CONSTRAINT [FK_Ayahs_Surahs_SurahId];
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IF OBJECT_ID(N'[FK_Episodes_Surahs_SurahId]', N'F') IS NOT NULL
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ALTER TABLE [Episodes] DROP CONSTRAINT [FK_Episodes_Surahs_SurahId];
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IF OBJECT_ID(N'[Surahs]', N'U') IS NOT NULL
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BEGIN
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SELECT * INTO [#SurahsBackup] FROM [Surahs];
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DROP TABLE [Surahs];
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END
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CREATE TABLE [Surahs] (
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[Id] int NOT NULL IDENTITY(1,1),
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[Number] int NOT NULL,
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[NameAr] nvarchar(80) NOT NULL,
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[NameFa] nvarchar(80) NOT NULL,
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CONSTRAINT [PK_Surahs] PRIMARY KEY ([Id])
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);
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CREATE UNIQUE INDEX [IX_Surahs_Number] ON [Surahs] ([Number]);
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IF OBJECT_ID(N'tempdb..#SurahsBackup') IS NOT NULL
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BEGIN
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SET IDENTITY_INSERT [Surahs] ON;
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INSERT INTO [Surahs] ([Id], [Number], [NameAr], [NameFa])
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SELECT [Id], [Number], [NameAr], [NameFa] FROM [#SurahsBackup];
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SET IDENTITY_INSERT [Surahs] OFF;
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DROP TABLE [#SurahsBackup];
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END
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ALTER TABLE [Ayahs] WITH CHECK ADD CONSTRAINT [FK_Ayahs_Surahs_SurahId]
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FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
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ALTER TABLE [Episodes] WITH CHECK ADD CONSTRAINT [FK_Episodes_Surahs_SurahId]
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FOREIGN KEY ([SurahId]) REFERENCES [Surahs] ([Id]) ON DELETE CASCADE;
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""");
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}
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}
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}
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