Refactor content decoders and restructure data layer

Updated `DocxContentDecoder`, `PdfContentDecoder`, and `TextContentDecoder` to return `Task<IEnumerable<Chunk>>` instead of `Task<string>`, introducing a new `Chunk` record for structured output. Restructured the `ApplicationDbContext`, `Document`, and `DocumentChunk` classes by moving them to the `SqlDatabaseVectorSearch.Data` namespace for better organization. Updated database migration files to align with the new entity structure and modified references in `Program.cs`, `DocumentService.cs`, and `VectorSearchService.cs` to use the new namespace.
2026-06-20 12:23:10 +00:00 · 2025-05-27 17:10:17 +02:00
parent 599cc84928
commit fa81f01c27
13 changed files with 43 additions and 37 deletions
@@ -0,0 +1,64 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace SqlDatabaseVectorSearch.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class Initial : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Documents",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    Name = table.Column<string>(type: "nvarchar(255)", maxLength: 255, nullable: false),
+                    CreationDate = table.Column<DateTimeOffset>(type: "datetimeoffset", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Documents", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "DocumentChunks",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    DocumentId = table.Column<Guid>(type: "uniqueidentifier", nullable: false),
+                    Index = table.Column<int>(type: "int", nullable: false),
+                    Content = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Embedding = table.Column<string>(type: "vector(1536)", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_DocumentChunks", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_DocumentChunks_Documents",
+                        column: x => x.DocumentId,
+                        principalTable: "Documents",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_DocumentChunks_DocumentId",
+                table: "DocumentChunks",
+                column: "DocumentId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "DocumentChunks");
+
+            migrationBuilder.DropTable(
+                name: "Documents");
+        }
+    }
+}