nanxun
58bc8b4b5a
1、优化消息排序逻辑 2、新增加载历史消息 3、修复已知问题 后端： 1、优化消息排序逻辑 2、增加用户信息缓存机制 3、修改日期类型为DateTimeOffset改善时区信息丢失问题 3、修复了已知问题 数据库： 1、新增SequenceId字段用于消息排序 2、新增ClientMsgId字段用于客户端消息回执
94 lines
3.0 KiB
C#
94 lines
3.0 KiB
C#
using System;
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using Microsoft.EntityFrameworkCore.Migrations;
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#nullable disable
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namespace IM_API.Migrations
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{
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/// <inheritdoc />
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public partial class updatemessage : 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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migrationBuilder.DropForeignKey(
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name: "conversations_ibfk_2",
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table: "conversations");
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migrationBuilder.RenameIndex(
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name: "lastMessageId",
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table: "conversations",
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newName: "LastReadSequenceId");
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migrationBuilder.AddColumn<Guid>(
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name: "ClientMsgId",
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table: "messages",
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type: "char(36)",
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nullable: false,
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defaultValue: new Guid("00000000-0000-0000-0000-000000000000"),
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collation: "ascii_general_ci");
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migrationBuilder.AddColumn<int>(
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name: "MessageId",
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table: "conversations",
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type: "int(11)",
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nullable: true);
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migrationBuilder.CreateIndex(
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name: "IX_messages_SequenceId_StreamKey",
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table: "messages",
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columns: new[] { "SequenceId", "StreamKey" },
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unique: true);
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migrationBuilder.CreateIndex(
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name: "IX_conversations_MessageId",
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table: "conversations",
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column: "MessageId");
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migrationBuilder.AddForeignKey(
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name: "FK_conversations_messages_MessageId",
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table: "conversations",
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column: "MessageId",
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principalTable: "messages",
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principalColumn: "ID");
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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.DropForeignKey(
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name: "FK_conversations_messages_MessageId",
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table: "conversations");
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migrationBuilder.DropIndex(
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name: "IX_messages_SequenceId_StreamKey",
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table: "messages");
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migrationBuilder.DropIndex(
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name: "IX_conversations_MessageId",
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table: "conversations");
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migrationBuilder.DropColumn(
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name: "ClientMsgId",
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table: "messages");
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migrationBuilder.DropColumn(
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name: "MessageId",
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table: "conversations");
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migrationBuilder.RenameIndex(
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name: "LastReadSequenceId",
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table: "conversations",
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newName: "lastMessageId");
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migrationBuilder.AddForeignKey(
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name: "conversations_ibfk_2",
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table: "conversations",
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column: "lastReadMessageId",
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principalTable: "messages",
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principalColumn: "ID",
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onDelete: ReferentialAction.SetNull);
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}
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}
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}
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