From 59b9192db995b805db331ddd5d13ce6d2dbc458a Mon Sep 17 00:00:00 2001
From: Alex Macocian <amacocian@yahoo.com>
Date: Tue, 13 May 2025 18:03:52 +0200
Subject: [PATCH] Implement DeleteAll

---
 Constants.cs                       |  1 +
 Squealify.csproj                   |  2 +-
 Table/BasicQueryMethodGenerator.cs | 21 +++++++++++++++++++++
 TableContextGenerator.cs           |  3 +++
 4 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/Constants.cs b/Constants.cs
index d9372bf..7551009 100644
--- a/Constants.cs
+++ b/Constants.cs
@@ -99,6 +99,7 @@ public static class Constants
     public const string UpsertMethodName = "Upsert";
     public const string UpdateMethodName = "Update";
     public const string DeleteMethodName = "Delete";
+    public const string DeleteAllMethodName = "DeleteAll";
     public const string FindMethodName = "Find";
     public const string FindAllMethodName = "FindAll";
 }
diff --git a/Squealify.csproj b/Squealify.csproj
index cbba111..8cd6d1b 100644
--- a/Squealify.csproj
+++ b/Squealify.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <Version>0.8.2.1</Version>
+    <Version>0.8.2.2</Version>
     <LangVersion>latest</LangVersion>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <Authors>Alexandru Macocian</Authors>
diff --git a/Table/BasicQueryMethodGenerator.cs b/Table/BasicQueryMethodGenerator.cs
index 788633b..b05b4c3 100644
--- a/Table/BasicQueryMethodGenerator.cs
+++ b/Table/BasicQueryMethodGenerator.cs
@@ -133,6 +133,27 @@ command.CommandText = @""{placeHolder}"";
         return new MethodWithSqlStatement(methodBuilder, placeHolder, sql.ToString());
     }
 
+    public static MethodWithSqlStatement CreateDeleteAllStatement(TableContext context)
+    {
+        var placeHolder = $"DeleteAll{context.DboType}";
+        var sql = new StringBuilder();
+        sql.AppendLine()
+            .AppendLine($"\t\t\tDELETE FROM {context.TableName};");
+
+        var bodyBuilder = new StringBuilder(@$"
+using var command = this.{Constants.DbConnectionPropertyName}.CreateCommand();
+command.CommandText = @""{placeHolder}"";
+");
+        bodyBuilder.AppendLine("await command.ExecuteNonQueryAsync(cancellationToken);");
+
+        var methodBuilder = SyntaxBuilder.CreateMethod(Constants.ValueTaskType, Constants.DeleteAllMethodName)
+            .WithModifiers($"{Constants.Public} {Constants.Async}")
+            .WithParameter(Constants.CancellationTokenType, Constants.CancellationTokenArgument)
+            .WithBody(bodyBuilder.ToString());
+
+        return new MethodWithSqlStatement(methodBuilder, placeHolder, sql.ToString());
+    }
+
     public static MethodWithSqlStatement CreateFindStatement(TableContext context)
     {
         var placeHolder = $"Find{context.DboType}";
diff --git a/TableContextGenerator.cs b/TableContextGenerator.cs
index 628327d..58f42b5 100644
--- a/TableContextGenerator.cs
+++ b/TableContextGenerator.cs
@@ -126,6 +126,7 @@ public sealed class TableContextGenerator : IIncrementalGenerator
         var upsertMethod = BasicQueryMethodGenerator.CreateUpsertStatement(ctx);
         var updateMethod = BasicQueryMethodGenerator.CreateUpdateStatement(ctx);
         var deleteMethod = BasicQueryMethodGenerator.CreateDeleteStatement(ctx);
+        var deleteAllMethod = BasicQueryMethodGenerator.CreateDeleteAllStatement(ctx);
         var findMethod = BasicQueryMethodGenerator.CreateFindStatement(ctx);
         var findAllMethod = BasicQueryMethodGenerator.CreateFindAllStatement(ctx);
         classBuilder
@@ -136,6 +137,7 @@ public sealed class TableContextGenerator : IIncrementalGenerator
             .WithMethod(updateMethod.MethodBuilder)
             .WithMethod(deleteMethod.MethodBuilder)
             .WithMethod(findMethod.MethodBuilder)
+            .WithMethod(deleteAllMethod.MethodBuilder)
             .WithMethod(findAllMethod.MethodBuilder)
             .WithMethod(CreateParameterMethodGenerator.CreateParameterMethod());
 
@@ -162,6 +164,7 @@ public sealed class TableContextGenerator : IIncrementalGenerator
             .Replace(upsertMethod.Placeholder, upsertMethod.CommandText)
             .Replace(updateMethod.Placeholder, updateMethod.CommandText)
             .Replace(deleteMethod.Placeholder, deleteMethod.CommandText)
+            .Replace(deleteAllMethod.Placeholder, deleteAllMethod.CommandText)
             .Replace(findMethod.Placeholder, findMethod.CommandText)
             .Replace(findAllMethod.Placeholder, findAllMethod.CommandText);