Updated FK handling in SQLite

Author: Ja bist du narrisch

src/Migrator.Tests/Providers/SQLiteTransformationProviderTest.cs

@@ -39,8 +39,15 @@ public void SetUp()
         [Test]
         public void AddForeignKey()
         {
+            // Arrange
             AddTableWithPrimaryKey();
-            _provider.AddForeignKey("Will not be used by SQLite", "Test", "Id", "TestTwo", "TestId", ForeignKeyConstraintType.SetDefault);
+
+            // Act
+            _provider.AddForeignKey("FK name is not supported by SQLite", foreignTable: "Test", foreignColumn: "Id", primaryTable: "TestTwo", primaryColumn: "TestId", ForeignKeyConstraintType.Cascade);
+
+            // Assert
+            var foreignKeyConstraints = ((SQLiteTransformationProvider)_provider).GetForeignKeyConstraints("Test");
+            var tableSQLCreateScript = ((SQLiteTransformationProvider)_provider).GetSqlCreateTableScript("Test");
         }
 
 

src/Migrator/Framework/ForeignKeyConstraint.cs

@@ -7,9 +7,8 @@ public class ForeignKeyConstraint : IDbField
     public ForeignKeyConstraint()
     { }
 
-    public ForeignKeyConstraint(string name, string table, string[] columns, string pkTable, string[] pkColumns, string stringId = null)
+    public ForeignKeyConstraint(string name, string table, string[] columns, string pkTable, string[] pkColumns)
     {
-        StringId = stringId;
         Name = name;
         Table = table;
         Columns = columns;
@@ -19,12 +18,27 @@ public ForeignKeyConstraint(string name, string table, string[] columns, string
 
     /// <summary>
     /// Gets or sets the Id of the FK. This is not the name of the FK.
-    /// SQLite: 
+    /// Currently used for SQLite
     /// </summary>
-    public string StringId { get; set; }
+    public int? Id { get; set; }
     public string Name { get; set; }
     public string Table { get; set; }
     public string[] Columns { get; set; }
     public string PkTable { get; set; }
     public string[] PkColumns { get; set; }
+
+    /// <summary>
+    /// Gets or sets the on update text. Currently only used for SQLite.
+    /// </summary>
+    public string OnDelete { get; set; }
+
+    /// <summary>
+    /// Gets or sets the on update text. Currently only used for SQLite.
+    /// </summary>
+    public string OnUpdate { get; set; }
+
+    /// <summary>
+    /// /// Gets or sets the match text. Currently only used for SQLite.
+    /// </summary>
+    public string Match { get; set; }
 }

src/Migrator/Providers/Impl/SQLite/Models/MappingInfo.cs

@@ -0,0 +1,14 @@
+namespace DotNetProjects.Migrator.Providers.Impl.SQLite.Models;
+
+public class MappingInfo
+{
+    /// <summary>
+    /// Gets or sets the old name.
+    /// </summary>
+    public string OldName { get; set; }
+
+    /// <summary>
+    /// Gets or sets the new name.
+    /// </summary>
+    public string NewName { get; set; }
+}

src/Migrator/Providers/Impl/SQLite/Models/PragmaForeignKeyListItem.cs

@@ -0,0 +1,47 @@
+namespace DotNetProjects.Migrator.Providers.Impl.SQLite.Models;
+
+/// <summary>
+/// Represents a row of pragma_foreign_key_list() in SQLite.
+/// </summary>
+public class PragmaForeignKeyListItem
+{
+    /// <summary>
+    /// Gets or sets the foreign key id. Name: id
+    /// </summary>
+    public int Id { get; set; }
+
+    /// <summary>
+    /// Gets or sets the sequence number of the foreign key. Name: seq
+    /// </summary>
+    public int Seq { get; set; }
+
+    /// <summary>
+    /// Gets or sets the name of the referenced table. Name: table
+    /// </summary>
+    public string Table { get; set; }
+
+    /// <summary>
+    /// Gets or sets the column in the current table that acts as the FK. Name: from
+    /// </summary>
+    public string From { get; set; }
+
+    /// <summary>
+    /// Gets or sets the column in the referenced table. Name: to
+    /// </summary>
+    public string To { get; set; }
+
+    /// <summary>
+    /// Gets or sets on update. Name: on_update
+    /// </summary>
+    public string OnUpdate { get; set; }
+
+    /// <summary>
+    /// Gets or sets on delete. Name: on_delete
+    /// </summary>
+    public string OnDelete { get; set; }
+
+    /// <summary>
+    /// Gets or sets match. Name: match
+    /// </summary>
+    public string Match { get; set; }
+}

src/Migrator/Providers/Impl/SQLite/Models/SQLiteTableInfo.cs

@@ -0,0 +1,33 @@
+using System.Collections.Generic;
+using DotNetProjects.Migrator.Framework;
+using Migrator.Framework;
+
+namespace DotNetProjects.Migrator.Providers.Impl.SQLite.Models;
+
+public class SQLiteTableInfo
+{
+    /// <summary>
+    /// Gets or sets the table name.
+    /// </summary>
+    public MappingInfo TableNameMapping { get; set; }
+
+    /// <summary>
+    /// Gets or sets the columns of a table
+    /// </summary>
+    public List<Column> Columns { get; set; } = [];
+
+    /// <summary>
+    /// Gets or sets the indexes of a table.
+    /// </summary>
+    public List<Index> Indexes { get; set; } = [];
+
+    /// <summary>
+    /// Gets or sets the foreign keys of a table.
+    /// </summary>
+    public List<ForeignKeyConstraint> ForeignKeys { get; set; } = [];
+
+    /// <summary>
+    /// Gets or sets the column mappings.
+    /// </summary>
+    public List<MappingInfo> ColumnMappings { get; set; } = [];
+}