463 lines
20 KiB
C#
463 lines
20 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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using System.Threading.Tasks;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.Localization;
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using Sozsoft.Platform.Data.Seeds;
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using Sozsoft.Platform.Enums;
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using Sozsoft.Platform.Localization;
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using Volo.Abp;
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using Volo.Abp.Domain.Services;
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namespace Sozsoft.Mcp.Services;
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/// <summary>
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/// Yeni tabloyu SQL Query Manager'daki tablo tasarimcisiyla ayni sozlesmeyle kurar: script
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/// tasarimcinin <c>generateCreateTableSql</c> ciktisiyla ayni bicimdedir ve tasarimcinin deploy
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/// sonrasi yazdigi yerlere (<c>sql/object/{Tablo}.sql</c> ve PostgreSQL esi <c>postgres/object/{Tablo}.sql</c>) yazilir; boylece tablo
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/// tasarimcida acilip duzenlenebilir ve veritabani sifirlandiginda seed ile geri gelir.
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/// <para>
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/// Veritabaninda calistirilmaz: tabloyu, wizard deploy'unun ekranini kurdugu gibi kullanicinin
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/// calistirdigi DB Migrate kurar (<c>SqlDataSeeder</c>).
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/// </para>
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/// <para>
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/// Yalnizca olusturma yapar. Var olan tabloya dokunulmaz — kolon ekleme/degistirme tasarimcinin
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/// isidir ve sema degisikligi kurallarina (kayipsiz ekleme, degistirme/dusurme yok) tabidir.
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/// Kolon tipi ve varsayilan deger serbest metin degil, beyaz listeden gecer; istemci SQL yazamaz.
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/// </para>
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/// </summary>
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public interface IMcpTableCreator
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{
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Task<McpOutcome<McpCreatedTable>> CreateAsync(McpTableDefinition definition);
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}
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public class McpTableCreator(
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IMcpQueryExecutor queryExecutor,
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IConfiguration configuration,
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IStringLocalizer<PlatformResource> localizer) : DomainService, IMcpTableCreator
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{
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private const string SchemaName = "dbo";
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private const int DefaultTextLength = 100;
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private const int MaxTextLength = 4000;
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private static readonly Regex SafeIdentifierRegex = new(
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@"^[A-Za-z_][A-Za-z0-9_]{0,127}$",
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RegexOptions.Compiled | RegexOptions.CultureInvariant);
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/// <summary>
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/// Istemcinin SQL bicimiyle yazdigi tip: <c>nvarchar(50)</c>, <c>nvarchar (MAX)</c>,
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/// <c>decimal(18, 4)</c>. Boyut tipten ayrilir; tip adi yine beyaz listeden gecer.
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/// </summary>
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private static readonly Regex SizedTypeRegex = new(
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@"^(?<name>[A-Za-z0-9]+)\s*\(\s*(?<size>[^)]*?)\s*\)$",
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RegexOptions.Compiled | RegexOptions.CultureInvariant);
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/// <summary>Tasarimci decimal'i her zaman bu kesinlikle yazar (<c>ToColumnLine</c>).</summary>
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private const string DecimalSize = "18,4";
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/// <summary>
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/// Varsayilan deger olarak kabul edilenler: sayi, metin sabiti ve tasarimcinin kendi
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/// sablonlarinda kullandigi fonksiyonlar. Baska bir ifade script'e hic girmez.
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/// </summary>
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private static readonly Regex SafeDefaultRegex = new(
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@"^(?:-?\d{1,18}(?:\.\d{1,18})?|N?'(?:[^']|'')*'|NEWID\(\)|GETDATE\(\)|GETUTCDATE\(\)|SYSUTCDATETIME\(\))$",
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RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
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/// <summary>Tasarimcinin tip listesi (<c>DATA_TYPES</c>) ile aynidir.</summary>
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private static readonly string[] SupportedTypes =
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[
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"nvarchar", "nvarchar(MAX)", "int", "bigint", "decimal", "float", "bit",
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"datetime", "datetime2", "date", "uniqueidentifier", "money"
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];
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// Sablon kolonlari tasarimcinin FULL_AUDIT_COLUMNS / TENANT_COLUMN tanimlariyla aynidir.
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/// <summary>Tasarimcinin FK silme davranislari; anahtar istemcinin yazdigi, deger SQL karsiligidir.</summary>
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private static readonly Dictionary<string, string> ReferentialActions = new(StringComparer.OrdinalIgnoreCase)
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{
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["NoAction"] = "NO ACTION",
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["Cascade"] = "CASCADE",
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["SetNull"] = "SET NULL",
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};
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private const string DefaultReferentialAction = "NoAction";
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private static readonly McpTableColumn IdColumn = new("Id", "uniqueidentifier", null, false, "NEWID()");
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private static readonly McpTableColumn TenantColumn = new("TenantId", "uniqueidentifier", null, true, null);
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private static readonly McpTableColumn[] AuditColumns =
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[
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new("CreationTime", "datetime2", null, false, "GETUTCDATE()"),
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new("CreatorId", "uniqueidentifier", null, true, null),
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new("LastModificationTime", "datetime2", null, true, null),
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new("LastModifierId", "uniqueidentifier", null, true, null),
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new("IsDeleted", "bit", null, false, "0"),
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new("DeletionTime", "datetime2", null, true, null),
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new("DeleterId", "uniqueidentifier", null, true, null)
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];
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public async Task<McpOutcome<McpCreatedTable>> CreateAsync(McpTableDefinition definition)
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{
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Check.NotNull(definition, nameof(definition));
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var tableName = (definition.TableName ?? string.Empty).Trim();
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if (CheckIdentifier(tableName) is { } invalidName)
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{
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return invalidName;
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}
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if (!BuildColumns(definition).TryGetValue(out var columns, out var problem) ||
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!BuildIndexes(tableName, definition.Indexes, columns).TryGetValue(out var indexes, out problem) ||
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!BuildForeignKeys(definition.ForeignKeys, columns).TryGetValue(out var foreignKeys, out problem))
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{
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return problem;
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}
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var context = await queryExecutor.ResolveDataSourceAsync();
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var isPostgreSql = context.DataSourceType == DataSourceTypeEnum.Postgresql;
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async Task<bool> TableExistsAsync(string name)
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{
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var existing = await context.Repository.ExecuteScalarAsync<object?>(
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isPostgreSql ? "SELECT to_regclass(@name)::text" : "SELECT OBJECT_ID(@name, 'U')",
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context.ConnectionString,
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new Dictionary<string, object> { ["name"] = isPostgreSql ? $"public.\"{name}\"" : $"{SchemaName}.{name}" });
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return existing is not null and not DBNull;
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}
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// Henuz migrate edilmemis bir create_table da tabloyu sahiplenmis sayilir; ikinci cagri onun
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// scriptinin ustune yazmaz.
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if (await TableExistsAsync(tableName) || PostgreSqlTableScript.ReadSeedColumns(configuration, tableName).Count > 0)
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{
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return Problem(McpErrorCodes.TableAlreadyExists, tableName);
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}
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foreach (var foreignKey in foreignKeys)
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{
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if (await CheckReferenceInstalledFirstAsync(tableName, foreignKey, TableExistsAsync) is { } notInstalled)
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{
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return notInstalled;
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}
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}
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// Dosya biçimi tasarımcınınkiyle aynı T-SQL'dir; PostgreSQL eşi ondan üretilir.
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var script = BuildScript(tableName, columns, indexes, foreignKeys);
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if (!PostgreSqlTableScript.TryConvert(script, out _))
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{
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throw new InvalidOperationException($"PostgreSQL script could not be generated for {tableName}.");
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}
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// Tablo veritabaninda kurulmaz: wizard deploy'u gibi yalnizca seed yazilir, kurulum kullanicinin
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// calistirdigi DB Migrate'tedir (SqlDataSeeder).
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var (seedFilePath, _) = PostgreSqlTableScript.WriteSeedFiles(configuration, tableName, script);
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return new McpCreatedTable(tableName, script, seedFilePath);
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}
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private McpOutcome<List<McpTableColumn>> BuildColumns(McpTableDefinition definition)
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{
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if (definition.Columns.Count == 0)
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{
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return Problem(McpErrorCodes.TableColumnsRequired);
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}
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var columns = new List<McpTableColumn> { IdColumn };
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if (definition.MultiTenant)
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{
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columns.Add(TenantColumn);
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}
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foreach (var column in definition.Columns)
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{
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if (!NormalizeColumn(column).TryGetValue(out var normalized, out var problem))
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{
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return problem;
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}
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columns.Add(normalized);
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}
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if (definition.FullAudited)
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{
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columns.AddRange(AuditColumns);
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}
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var duplicate = columns
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.GroupBy(column => column.Name, StringComparer.OrdinalIgnoreCase)
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.FirstOrDefault(group => group.Count() > 1);
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return duplicate is null ? columns : Problem(McpErrorCodes.DuplicateColumn, duplicate.Key);
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}
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/// <summary>Index ve unique kolonlari tablonun kolonlari arasinda olmalidir; ad tasarimcinin kalibindadir.</summary>
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private McpOutcome<List<McpTableIndex>> BuildIndexes(string tableName, IReadOnlyList<McpTableIndex> indexes, List<McpTableColumn> columns)
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{
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var result = new List<McpTableIndex>();
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foreach (var index in indexes)
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{
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var indexColumns = new List<string>();
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foreach (var column in index.Columns)
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{
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if (!ResolveColumn(column, columns).TryGetValue(out var resolved, out var problem))
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{
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return problem;
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}
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if (!indexColumns.Contains(resolved))
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indexColumns.Add(resolved);
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}
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var name = $"{(index.Unique ? "UQ" : "IX")}_{tableName}_{string.Join("_", indexColumns)}";
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// Kolonsuz ya da ayni kolonlarla tekrar eden index uretilecek bir sey tasimaz.
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if (indexColumns.Count > 0 && !result.Exists(existing => string.Equals(existing.Name, name, StringComparison.OrdinalIgnoreCase)))
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result.Add(new McpTableIndex(indexColumns, index.Unique, name));
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}
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return result;
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}
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private McpOutcome<List<McpTableForeignKey>> BuildForeignKeys(IReadOnlyList<McpTableForeignKey> foreignKeys, List<McpTableColumn> columns)
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{
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var result = new List<McpTableForeignKey>();
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foreach (var foreignKey in foreignKeys)
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{
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if (!ResolveColumn(foreignKey.Column, columns).TryGetValue(out var column, out var problem))
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{
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return problem;
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}
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var referencedTable = (foreignKey.ReferencedTable ?? string.Empty).Trim();
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var referencedColumn = string.IsNullOrWhiteSpace(foreignKey.ReferencedColumn) ? IdColumn.Name : foreignKey.ReferencedColumn.Trim();
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if ((CheckIdentifier(referencedTable) ?? CheckIdentifier(referencedColumn)) is { } invalid)
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{
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return invalid;
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}
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// Tanimadigi davranis (Restrict gibi) SQL Server'in varsayilanina, NO ACTION'a duser.
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var action = ReferentialActions.Keys.FirstOrDefault(key => string.Equals(key, foreignKey.OnDelete?.Trim(), StringComparison.OrdinalIgnoreCase))
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?? DefaultReferentialAction;
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// Bir kolonun tek FK'si olur; ayni kolon icin tekrar eden tanimin ilki gecerlidir.
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if (!result.Exists(existing => string.Equals(existing.Column, column, StringComparison.OrdinalIgnoreCase)))
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result.Add(new McpTableForeignKey(column, referencedTable, referencedColumn, action));
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}
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return result;
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}
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/// <summary>
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/// Seed scriptleri DB Migrate'te dosya adi sirasiyla calisir (<c>SqlDataSeeder</c>). FK'nin
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/// gosterdigi tablo bir seed scriptiyle kuruluyorsa o dosya bu tablonunkinden once gelmelidir;
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/// scripti yoksa (EF ile kurulan platform tablosu) veritabaninda bulunmalidir. Aksi halde
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/// sifirdan kurulumda migrate FK satirinda duserdi.
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/// </summary>
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private async Task<McpProblem?> CheckReferenceInstalledFirstAsync(string tableName, McpTableForeignKey foreignKey, Func<string, Task<bool>> tableExistsAsync)
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{
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var hasScript = PostgreSqlTableScript.ReadSeedColumns(configuration, foreignKey.ReferencedTable).Count > 0;
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var installed = hasScript
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? Comparer<string>.Default.Compare($"{foreignKey.ReferencedTable}.sql", $"{tableName}.sql") < 0
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: await tableExistsAsync(foreignKey.ReferencedTable);
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return installed
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? null
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: Problem(McpErrorCodes.ForeignKeyTableNotInstalledFirst, foreignKey.Column, foreignKey.ReferencedTable, tableName);
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}
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private McpOutcome<string> ResolveColumn(string? name, List<McpTableColumn> columns)
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{
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var match = columns.FirstOrDefault(column => string.Equals(column.Name, name?.Trim(), StringComparison.OrdinalIgnoreCase));
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return match is null ? Problem(McpErrorCodes.TableColumnNotFound, name ?? string.Empty) : match.Name;
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}
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private McpOutcome<McpTableColumn> NormalizeColumn(McpTableColumn column)
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{
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var name = (column.Name ?? string.Empty).Trim();
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if (CheckIdentifier(name) is { } invalidName)
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{
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return invalidName;
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}
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if (!ResolveType(column.Type).TryGetValue(out var resolved, out var problem))
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{
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return problem;
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}
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int? maxLength = null;
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if (resolved.Type == "nvarchar")
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{
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maxLength = column.MaxLength ?? resolved.MaxLength ?? DefaultTextLength;
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if (maxLength is < 1 or > MaxTextLength)
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{
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return Problem(McpErrorCodes.InvalidColumnLength, name, MaxTextLength);
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}
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}
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var defaultValue = string.IsNullOrWhiteSpace(column.DefaultValue) ? null : column.DefaultValue.Trim();
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if (defaultValue is not null && !SafeDefaultRegex.IsMatch(defaultValue))
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{
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return Problem(McpErrorCodes.InvalidDefaultValue, name, defaultValue);
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}
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return new McpTableColumn(name, resolved.Type, maxLength, column.IsNullable, defaultValue);
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}
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/// <summary>
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/// Tipi beyaz listedeki adina indirger. <c>nvarchar(N)</c> uzunlugu dondurur,
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/// <c>nvarchar(MAX)</c> kendi tipidir; decimal yalnizca tasarimcinin kesinligiyle kabul edilir —
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/// baska bir kesinligi 18,4'e cevirmek sessizce veri kaybi riski tasirdi.
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/// </summary>
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private McpOutcome<ResolvedType> ResolveType(string? rawType)
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{
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var trimmed = rawType?.Trim() ?? string.Empty;
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var name = trimmed;
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string? size = null;
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var sized = SizedTypeRegex.Match(trimmed);
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if (sized.Success)
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{
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name = sized.Groups["name"].Value;
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size = Regex.Replace(sized.Groups["size"].Value, @"\s+", string.Empty);
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}
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int? maxLength = null;
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if (size is not null)
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{
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if (name.Equals("nvarchar", StringComparison.OrdinalIgnoreCase) && size.Equals("max", StringComparison.OrdinalIgnoreCase))
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{
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name = "nvarchar(MAX)";
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}
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else if (name.Equals("nvarchar", StringComparison.OrdinalIgnoreCase) && int.TryParse(size, out var length))
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{
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maxLength = length;
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}
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else if (!(name.Equals("decimal", StringComparison.OrdinalIgnoreCase) && size == DecimalSize))
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{
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name = trimmed;
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}
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}
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var type = SupportedTypes.FirstOrDefault(candidate => string.Equals(candidate, name, StringComparison.OrdinalIgnoreCase));
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return type is null
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? Problem(McpErrorCodes.UnsupportedColumnType, trimmed, string.Join(", ", SupportedTypes))
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: new ResolvedType(type, maxLength);
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}
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private sealed record ResolvedType(string Type, int? MaxLength);
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private static string BuildScript(string tableName, List<McpTableColumn> columns, List<McpTableIndex> indexes, List<McpTableForeignKey> foreignKeys)
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{
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var fullTableName = $"[{SchemaName}].[{tableName}]";
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var lines = new List<string>
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{
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$"IF OBJECT_ID(N'{fullTableName}', 'U') IS NULL",
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"BEGIN",
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$" CREATE TABLE {fullTableName}",
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" ("
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};
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lines.AddRange(columns.Select(column => ToColumnLine(column) + ","));
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lines.Add($" CONSTRAINT [PK_{tableName}] PRIMARY KEY NONCLUSTERED");
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lines.Add(" (");
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lines.Add(" [Id] ASC");
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lines.Add(" )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]");
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lines.Add(" ) ON [PRIMARY]");
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lines.Add("END");
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lines.Add("GO");
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// Tasarimcinin unique/index/FK deyimleri; her biri varlik kontroluyle yazilir ki migrate
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// scripti yeniden calistirdiginda dusmesin.
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foreach (var index in indexes)
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{
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var columnList = string.Join(", ", index.Columns.Select(column => $"[{column}] ASC"));
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lines.Add(string.Empty);
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if (index.Unique)
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{
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lines.Add($"IF OBJECT_ID(N'[{SchemaName}].[{index.Name}]', 'UQ') IS NULL");
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lines.Add("BEGIN");
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lines.Add($" ALTER TABLE {fullTableName} ADD CONSTRAINT [{index.Name}] UNIQUE NONCLUSTERED ({columnList});");
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}
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else
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{
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lines.Add($"IF INDEXPROPERTY(OBJECT_ID(N'{fullTableName}'), '{index.Name}', 'IndexID') IS NULL");
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lines.Add("BEGIN");
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lines.Add($" CREATE INDEX [{index.Name}] ON {fullTableName} ({columnList});");
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}
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lines.Add("END");
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lines.Add("GO");
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}
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foreach (var foreignKey in foreignKeys)
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{
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var name = $"FK_{tableName}_{foreignKey.Column}";
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lines.Add(string.Empty);
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lines.Add($"IF OBJECT_ID(N'[{SchemaName}].[{name}]', 'F') IS NULL");
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lines.Add("BEGIN");
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lines.Add($" ALTER TABLE {fullTableName} ADD CONSTRAINT [{name}] FOREIGN KEY ([{foreignKey.Column}]) " +
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$"REFERENCES [{SchemaName}].[{foreignKey.ReferencedTable}] ([{foreignKey.ReferencedColumn}]) " +
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$"ON DELETE {ReferentialActions[foreignKey.OnDelete!]} ON UPDATE NO ACTION;");
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lines.Add("END");
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lines.Add("GO");
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}
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return string.Join('\n', lines);
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}
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private static string ToColumnLine(McpTableColumn column)
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{
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var type = column.Type switch
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{
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"nvarchar" => $"nvarchar({column.MaxLength})",
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"decimal" => "decimal(18, 4)",
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_ => column.Type
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};
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var nullPart = column.IsNullable ? "NULL" : "NOT NULL";
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var defaultPart = column.DefaultValue is null ? string.Empty : $" DEFAULT {column.DefaultValue}";
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return $" [{column.Name}] {type} {nullPart}{defaultPart}";
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}
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private McpProblem? CheckIdentifier(string identifier)
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=> SafeIdentifierRegex.IsMatch(identifier) ? null : Problem(McpErrorCodes.InvalidIdentifier, identifier);
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private McpProblem Problem(string name, params object[] arguments)
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=> McpProblem.From(localizer, name, arguments);
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}
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/// <param name="FullAudited">Tam audit kolonlari (olusturma/degistirme/silme izi) eklensin mi.</param>
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/// <param name="MultiTenant"><c>TenantId</c> kolonu eklensin mi.</param>
|
||
/// <param name="Indexes">Index ve unique kisitlari; ad sunucuda uretilir (<c>IX_/UQ_{Tablo}_{Kolonlar}</c>).</param>
|
||
/// <param name="ForeignKeys">FK'ler; ad <c>FK_{Tablo}_{Kolon}</c>.</param>
|
||
public sealed record McpTableDefinition(
|
||
string TableName,
|
||
IReadOnlyList<McpTableColumn> Columns,
|
||
bool FullAudited,
|
||
bool MultiTenant,
|
||
IReadOnlyList<McpTableIndex> Indexes,
|
||
IReadOnlyList<McpTableForeignKey> ForeignKeys);
|
||
|
||
public sealed record McpTableIndex(IReadOnlyList<string> Columns, bool Unique, string? Name = null);
|
||
|
||
/// <param name="ReferencedColumn">Bos ise <c>Id</c>.</param>
|
||
/// <param name="OnDelete"><c>NoAction</c> (varsayilan), <c>Cascade</c> ya da <c>SetNull</c>.</param>
|
||
public sealed record McpTableForeignKey(string Column, string ReferencedTable, string? ReferencedColumn, string? OnDelete);
|
||
|
||
/// <param name="MaxLength">Yalnizca <c>nvarchar</c> icin; bos ise tasarimcinin varsayilani (100).</param>
|
||
public sealed record McpTableColumn(
|
||
string Name,
|
||
string Type,
|
||
int? MaxLength,
|
||
bool IsNullable,
|
||
string? DefaultValue);
|
||
|
||
/// <param name="SeedFilePath">Seed kokune gore goreli yol.</param>
|
||
public sealed record McpCreatedTable(string TableName, string Script, string SeedFilePath);
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