public static MemberDeclarationSyntax[] GenerateMapping(SqModelMeta meta, SqModelTableRef tableRef)
{
if (!HasUpdater(tableRef))
{
return(Array.Empty <MemberDeclarationSyntax>());
}
if (meta.HasPk())
{
return(new []
{
MethodDeclarationSyntax(meta, tableRef, MethodNameGetMapping, null),
MethodDeclarationSyntax(meta, tableRef, MethodNameGetUpdateKeyMapping, true),
MethodDeclarationSyntax(meta, tableRef, MethodNameGetUpdateMapping, false)
});
}
else
{
return(new [] { MethodDeclarationSyntax(meta, tableRef, MethodNameGetMapping, null) });
}
static MemberDeclarationSyntax MethodDeclarationSyntax(SqModelMeta sqModelMeta, SqModelTableRef tableRef, string name, bool?pkFilter)
{
var setter = SyntaxFactory.IdentifierName("s");
ExpressionSyntax chain = setter;
foreach (var metaProperty in sqModelMeta.Properties.Where(p => pkFilter.HasValue? p.IsPrimaryKey == pkFilter.Value : !p.IsIdentity))
{
var col = setter.MemberAccess(nameof(IDataMapSetter <object, object> .Target))
.MemberAccess(metaProperty.Column.First(c => c.TableRef.Equals(tableRef)).ColumnName);
ExpressionSyntax prop = setter.MemberAccess(nameof(IDataMapSetter <object, object> .Source))
.MemberAccess(metaProperty.Name);
if (metaProperty.CastType != null)
{
prop = SyntaxFactory.CastExpression(SyntaxFactory.ParseTypeName(metaProperty.Type), prop);
}
chain = chain.MemberAccess("Set").Invoke(col, prop);
}
var methodDeclarationSyntax = SyntaxFactory
.MethodDeclaration(SyntaxFactory.ParseTypeName(nameof(IRecordSetterNext)), name)
.WithModifiers(Modifiers(SyntaxKind.PublicKeyword, SyntaxKind.StaticKeyword))
.AddParameterListParameters(FuncParameter("s",
$"{nameof(IDataMapSetter<object, object>)}<{ExtractTableTypeName(sqModelMeta, tableRef)},{sqModelMeta.Name}>"))
.WithBody(SyntaxFactory.Block(SyntaxFactory.ReturnStatement(chain)));
return(methodDeclarationSyntax);
}