ff1f0833ad
* Restore EF Core persistence layer Originally, we had moved EF Core to the extensions repo, but in practice this turned out to be rather impractical when debugging elsa-core, given that we would lose all of the state (workflow definitions, instances, etc.) across application restarts. * Integrate PostgreSQL support into EF Core persistence and enhance BlobStorage workflows provider setup.
85 lines
2.9 KiB
C#
85 lines
2.9 KiB
C#
using Microsoft.EntityFrameworkCore.Migrations;
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namespace Elsa.Persistence.EFCore.PostgreSql;
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public static class MigrationHelper
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{
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public static void AlterColumnDateTime(MigrationBuilder migrationBuilder, IElsaDbContextSchema schema, string tableName, string columnName, bool nullable)
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{
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migrationBuilder.AddColumn<DateTimeOffset>(
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name: $"{columnName}Temp",
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schema: schema.Schema,
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table: tableName,
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type: "timestamptz",
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nullable: true);
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migrationBuilder.Sql(
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$"""
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UPDATE "{schema.Schema}"."{tableName}"
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SET "{columnName}Temp" = to_timestamp("{columnName}", 'YYYY-MM-DD HH24:MI:SS.US') AT TIME ZONE 'UTC'
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WHERE "{columnName}" IS NOT NULL
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""");
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migrationBuilder.DropColumn(
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name: columnName,
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schema: schema.Schema,
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table: tableName);
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migrationBuilder.RenameColumn(
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name: $"{columnName}Temp",
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schema: schema.Schema,
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table: tableName,
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newName: columnName);
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migrationBuilder.AlterColumn<DateTimeOffset>(
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name: columnName,
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schema: schema.Schema,
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table: tableName,
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type: "timestamptz",
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nullable: nullable,
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oldClrType: typeof(DateTimeOffset),
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oldNullable: nullable);
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}
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public static void AlterColumnBoolean(MigrationBuilder migrationBuilder, IElsaDbContextSchema schema, string tableName, string columnName, bool nullable)
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{
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// Step 1: Add a new temporary nullable column
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migrationBuilder.AddColumn<bool>(
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name: $"{columnName}Temp",
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schema: schema.Schema,
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table: tableName,
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type: "boolean",
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nullable: nullable);
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// Step 2: Update the temporary column with converted values from the original column
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migrationBuilder.Sql(
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$"""
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UPDATE "{schema.Schema}"."{tableName}"
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SET "{columnName}Temp" = CASE WHEN "{columnName}" = 1 THEN TRUE ELSE FALSE END
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WHERE "{columnName}" IS NOT NULL
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""");
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// Step 3: Drop the original column
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migrationBuilder.DropColumn(
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name: columnName,
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schema: schema.Schema,
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table: tableName);
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// Step 4: Rename the temporary column to the original column name
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migrationBuilder.RenameColumn(
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name: $"{columnName}Temp",
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schema: schema.Schema,
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table: tableName,
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newName: columnName);
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// Step 5: Alter the new column to be non-nullable
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migrationBuilder.AlterColumn<bool>(
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name: columnName,
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schema: schema.Schema,
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table: tableName,
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type: "boolean",
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nullable: nullable,
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oldClrType: typeof(bool),
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oldNullable: true);
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}
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} |