private void Btn_convert_Click(object sender, EventArgs e)
{
string allModifiedStoredProcdures = "";
string allModelBuilderQuery = "";
DeleteFolder("AsyadCapital.Entities", true);
try
{
DB_Helper db_helper = new DB_Helper();
string DBName = "";
if (db_helper.CheckConnectionStringValidity(txt_ConnectionString.Text,
db_helper.GetNamespaceProvider(cmb_DBProvider.Text)) == true)
{
//Get Db Name From Connection String
DBName = (db_helper.GetConnectionStringBuilder(txt_ConnectionString.Text)?["database"] ??
db_helper.GetConnectionStringBuilder(txt_ConnectionString.Text)?["Initial Catalog"]) as
string;
if (DBName == null)
{
MessageBox.Show("Coonection String is not valid", "Alert", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
}
else
{
MessageBox.Show("DB Connection Failed", "Alert", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
//MakeMVCScaffolding();
if (txt_Source.Text == "")
{
MessageBox.Show("Please Enter MVC Context File To Convert", "Alert", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
SyntaxTree tree = CSharpSyntaxTree.ParseText(txt_Source.Text);
CompilationUnitSyntax root = tree.GetCompilationUnitRoot();
//Get Context Class
ClassDeclarationSyntax mvcContextclass = root.DescendantNodes().OfType <ClassDeclarationSyntax>()
?.Where(c => c?.BaseList.Types.FirstOrDefault().Type.ToString() == "DbContext")?.FirstOrDefault();
if (mvcContextclass == null)
{
MessageBox.Show("Please Add File contain MVC context class ", "Alert", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
//DO Core Scafoollding
lbl_load.Text = "please wait untit convert Text File.......";
MakeCoreScaffolding();
lbl_load.Text = "File is Converted";
//Get Scafoolding Core File
string Core_ContextFilePath = Path.GetFullPath($@"AsyadCapital.Entities\DBEntities\{DBName}Context.cs");
StreamReader sr_ScafooldingFile = new StreamReader(Core_ContextFilePath);
string Core_ContextFile = sr_ScafooldingFile.ReadToEnd();
SyntaxTree coreTree = CSharpSyntaxTree.ParseText(Core_ContextFile);
CompilationUnitSyntax coreRoot = coreTree.GetCompilationUnitRoot();
//Get Core Context Class
ClassDeclarationSyntax Core_contextclass = coreRoot.DescendantNodes()
.OfType <ClassDeclarationSyntax>()
?.Where(c => c?.BaseList.Types.FirstOrDefault().Type.ToString() == "DbContext")?.FirstOrDefault();
//Get old OnModelCreating method
var coreOldOnModelCreatingMethod = Core_contextclass?.DescendantNodes()
.OfType <MethodDeclarationSyntax>()?.FirstOrDefault(m => m.Identifier.Text == "OnModelCreating");
if (Core_contextclass == null || coreOldOnModelCreatingMethod == null)
{
MessageBox.Show("Error with Scafooling From DB ", "Alert", MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
//Get Stored Procdures inside Context Class
var mvcAllStoredProcedurs = mvcContextclass.DescendantNodes().OfType <MethodDeclarationSyntax>()?.Where(
m =>
m.Body.ToFullString()
.Contains("return ((IObjectContextAdapter)this).ObjectContext.ExecuteFunction")).ToList();
if (mvcAllStoredProcedurs.Count == 0)
{
MessageBox.Show("Any stored Procures not Exists ", null, MessageBoxButtons.OK,
MessageBoxIcon.Error);
return;
}
// loop on stored Procdures
foreach (var sp in mvcAllStoredProcedurs)
{
var spAccessModifier = sp.Modifiers.ToFullString();
var spMethodName = sp.Identifier;
var spMethodParamters = sp.ParameterList;
string spDeclationStatmentList = "";
string spExecuteParamter = "";
var spReturnType = (sp.ReturnType as GenericNameSyntax)?.TypeArgumentList.Arguments[0] ??
sp.ReturnType;
var s = spReturnType.ToFullString();
if (sp.ReturnType.GetFirstToken().Text == "ObjectResult")
{
if ((spReturnType).GetType() == typeof(IdentifierNameSyntax))
{
//add ModelBuilderQuery
allModelBuilderQuery += $"modelBuilder.Query<{spReturnType}>();\n";
}
string firstsection =
$"{spAccessModifier}async Task<List<{spReturnType}>>{spMethodName}{spMethodParamters}"
+ "\n{"
+ "\n// Initialization.\n"
+ $"List<{spReturnType}> {spMethodName}_List = new List<{spReturnType}>();\n"
+ "try\n"
+ "{"
+ "\n// Sql Parameters . \n";
var declationStatmentList =
sp.Body.Statements.OfType <LocalDeclarationStatementSyntax>().ToList();
foreach (var param in declationStatmentList)
{
string VariableName = param.Declaration.Variables.First().Identifier.Text;
spDeclationStatmentList +=
$" {cmb_DBProvider.Text} {VariableName} = new {cmb_DBProvider.Text}("
+ $"\"@{FirstLetterToupper(VariableName).Substring(0, VariableName.Length - 9)}\""
+ $", {VariableName.Substring(0, VariableName.Length - 9)} ?? (object)DBNull.Value);\n";
}
string spExecuteStatment = "";
// if (!Sp_ReturnType.GetType().IsValueType)
if ((spReturnType) is IdentifierNameSyntax ||
spReturnType.ToFullString().ToLower() == "string")
{
spExecuteStatment = "// Create Query . \n"
+ $"var query = Query<{spReturnType}>().FromSql(\"EXEC [dbo].[{spMethodName}] ";
}
else
{
spExecuteStatment = "// Create Query . \n"
+ $"var query = (IQueryable< {spReturnType} >) Query<Object>().FromSql(\"EXEC[dbo].[{spMethodName}] ";
}
for (int k = 0; k < declationStatmentList.Count; k++)
{
spExecuteParamter += $"@{spMethodParamters.Parameters[k].Identifier}={{{k}}}";
if (k < declationStatmentList.Count - 1)
{
spExecuteParamter += ",";
}
}
spExecuteParamter += $";\"";
foreach (var declationStatment in declationStatmentList)
{
spExecuteParamter +=
$",{declationStatment.Declaration.Variables.First().Identifier.Text}";
}
spExecuteParamter += $");\n{spMethodName}_List = await query.ToListAsync();\n" +
"}\n catch (Exception ex)\n{\nthrow ex;\n}\n return" +
$" {spMethodName}_List;\n" +
"}\n";
allModifiedStoredProcdures +=
firstsection + spDeclationStatmentList + spExecuteStatment + spExecuteParamter;
}
else
{
string firstsection =
$"{spAccessModifier}async Task<{spReturnType}>{spMethodName}{spMethodParamters}"
+ "\n{"
+ "\n// Initialization.\n"
+ $"{spReturnType} result = default({spReturnType}) ;\n"
+ "try\n"
+ "{"
+ "\n// Sql Parameters . \n";
var declationStatmentList =
sp.Body.Statements.OfType <LocalDeclarationStatementSyntax>().ToList();
foreach (var param in declationStatmentList)
{
string VariableName = param.Declaration.Variables.First().Identifier.Text;
spDeclationStatmentList +=
$" {cmb_DBProvider.Text} {VariableName} = new {cmb_DBProvider.Text}("
+ $"\"@{FirstLetterToupper(VariableName).Substring(0, VariableName.Length - 9)}\""
+ $", {VariableName.Substring(0, VariableName.Length - 9)} ?? (object)DBNull.Value);\n";
}
string Sp_ExecuteStatment = "// Create Query . \n"
+ $"var query = Query<object>().FromSql(\"EXEC [dbo].[{spMethodName}] ";
for (int k = 0; k < declationStatmentList.Count; k++)
{
spExecuteParamter += $"@{spMethodParamters.Parameters[k].Identifier}={{{k}}}";
if (k < declationStatmentList.Count - 1)
{
spExecuteParamter += ",";
}
}
spExecuteParamter += $";\"";
for (int k = 0; k < declationStatmentList.Count; k++)
{
spExecuteParamter +=
$",{declationStatmentList[k].Declaration.Variables.First().Identifier.Text}";
}
spExecuteParamter += $");\nvar queryobject = await query.FirstOrDefaultAsync();\n" +
$"result = ({spReturnType})queryobject;" +
"}\n catch (Exception ex)\n{\nthrow ex;\n}\n return" +
$" result;\n" +
"}\n";
allModifiedStoredProcdures +=
firstsection + spDeclationStatmentList + Sp_ExecuteStatment + spExecuteParamter;
}
}
// Add allModelBuilderQueries
var coreNewOnModelCreatingMethod =
coreOldOnModelCreatingMethod.AddBodyStatements(ConvertToSyntaxStatment(allModelBuilderQuery));
// to delete OldOnModelCreatingMethod from class object
coreRoot.RemoveNode(coreOldOnModelCreatingMethod, new SyntaxRemoveOptions());
// to Add NewOnModelCreatingMethod in Class
var coreContextclassAfterAddingBuilderQueries =
Core_contextclass.AddMembers(coreNewOnModelCreatingMethod);
//Add All Stored Procedures to class Context
var coreNewContextClass = coreContextclassAfterAddingBuilderQueries.AddMembers(CSharpSyntaxTree
.ParseText(allModifiedStoredProcdures).GetCompilationUnitRoot().Members.ToArray());
//Replace old Context class With new Class Context object
coreRoot =
coreRoot.ReplaceNode(Core_contextclass, coreNewContextClass);
// Using Statments
string selectedProviderNameSpace = db_helper.GetNamespaceProvider(cmb_DBProvider.Text);
// Add New Using Namespaces
coreRoot = coreRoot.AddUsings(
ConvertToUsingDirectiveArray(new string[]
{
"System.Collections.Generic", "System.Threading.Tasks", "System.Linq", selectedProviderNameSpace
}));
txt_Target.Text = coreRoot.ToFullString();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, null, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
