private static TypeBuilder CreatePocoTypeBuilder(Table table, string assemblyName)
{
Type PropertyType;
PropertyBuilder propertyBuilder;
PropertyInfo pi;
TypeBuilder builder = DynamicTypeBuilder.GetTypeBuilder(table, typeof(PocoBase), assemblyName);
ConstructorBuilder constructor = builder.DefineDefaultConstructor(MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.RTSpecialName);
//DataContract Attribute
ConstructorInfo DataContractAttributeBuilder = typeof(DataContractAttribute).GetConstructor(Array.Empty <Type>());
pi = typeof(DataContractAttribute).GetProperties().FirstOrDefault(o => o.Name == nameof(DataContractAttribute.IsReference));
var attribute = new CustomAttributeBuilder(DataContractAttributeBuilder, Array.Empty <object>(), new PropertyInfo[] { pi }, new object[] { false });
builder.SetCustomAttribute(attribute);
//Table Schema Attribute
ConstructorInfo TableAttributeBuilder = typeof(TableAttribute).GetConstructor(new Type[] { typeof(string) });
pi = typeof(TableAttribute).GetProperties().FirstOrDefault(o => o.Name == nameof(TableAttribute.Schema));
attribute = new CustomAttributeBuilder(TableAttributeBuilder, new object[] { table.TableAttributeName }, new PropertyInfo[] { pi }, new object[] { table.Schema });
builder.SetCustomAttribute(attribute);
//Db attribute
ConstructorInfo DatabaseNameAttributeBuilder = typeof(DatabaseNameAttribute).GetConstructor(new Type[] { typeof(string) });
attribute = new CustomAttributeBuilder(DatabaseNameAttributeBuilder, new object[] { table.Database });
builder.SetCustomAttribute(attribute);
//Creating normal properties for each poco class
bool hasPKColumn = false;
foreach (Column column in table.Columns)
{
PropertyType = column.DataType.SystemType;
string propertyName = column.ColumnToPropertyName();
propertyBuilder = DynamicTypeBuilder.CreateProperty(builder, propertyName, PropertyType, true);
//DisplayName Attribute
ConstructorInfo DisplayNameAttributeBuilder = typeof(DisplayNameAttribute).GetConstructor(new Type[] { typeof(string) });
attribute = new CustomAttributeBuilder(DisplayNameAttributeBuilder, new object[] { Utils.GetFancyLabel(column.ColumnName) });
propertyBuilder.SetCustomAttribute(attribute);
//Column Attribute
ConstructorInfo ColumnAttributeBuilder = typeof(ColumnAttribute).GetConstructor(new Type[] { typeof(string) });
//set column datatype to varchar to prevent nvarchar casting
if (column.ColumnType.Equals("varchar", StringComparison.OrdinalIgnoreCase))
{
pi = typeof(ColumnAttribute).GetProperties().FirstOrDefault(o => o.Name == nameof(ColumnAttribute.TypeName));
attribute = new CustomAttributeBuilder(ColumnAttributeBuilder, new object[] { column.ColumnName }, new PropertyInfo[] { pi }, new object[] { $"varchar({column.ColumnLength})" });
}
else
{
attribute = new CustomAttributeBuilder(ColumnAttributeBuilder, new object[] { column.ColumnName });
}
propertyBuilder.SetCustomAttribute(attribute);
if (column.IsPK)
{
//Key Attribute (using AutoPocoOdata custom attribute)
//EF Core does not allow compound [Key] attributes in attributes
ConstructorInfo KeyAttributeBuilder = typeof(CompoundPrimaryKeyAttribute).GetConstructor(new Type[] { typeof(int) });
attribute = new CustomAttributeBuilder(KeyAttributeBuilder, new object[] { column.PKPosition });
propertyBuilder.SetCustomAttribute(attribute);
//Set to prevent a fake pk from being added (views when PK is not selected)
hasPKColumn = true;
ConstructorInfo IdentityAttributeBuilder = typeof(DatabaseGeneratedAttribute).GetConstructor(new Type[] { typeof(DatabaseGeneratedOption) });
if (!column.PKIsIdentity)
{
attribute = new CustomAttributeBuilder(IdentityAttributeBuilder, new object[] { DatabaseGeneratedOption.None });
}
else
{
attribute = new CustomAttributeBuilder(IdentityAttributeBuilder, new object[] { DatabaseGeneratedOption.Identity });
}
propertyBuilder.SetCustomAttribute(attribute);
}
if (column.IsFK)
{
//foreignKey Attribute
ConstructorInfo foreignKeyAttributeBuilder = typeof(ForeignKeyAttribute).GetConstructor(new Type[] { typeof(string) });
attribute = new CustomAttributeBuilder(foreignKeyAttributeBuilder, new object[] { DependentToPrimaryObjectName(column, table) });
propertyBuilder.SetCustomAttribute(attribute);
//ReferencedDbObject attribute
ConstructorInfo referencedDbObjectAttributeBuilder = typeof(ReferencedDbObjectAttribute).GetConstructor(new Type[] { typeof(string), typeof(string), typeof(string), typeof(string) });
attribute = new CustomAttributeBuilder(referencedDbObjectAttributeBuilder, new object[] { column.ReferencedDatabase, column.ReferencedSchema, column.ReferencedTable, column.ReferencedColumn });
propertyBuilder.SetCustomAttribute(attribute);
}
//DataMember Attribute
ConstructorInfo DataMemberAttributeBuilder = typeof(DataMemberAttribute).GetConstructor(Array.Empty <Type>());
attribute = new CustomAttributeBuilder(DataMemberAttributeBuilder, Array.Empty <object>());
propertyBuilder.SetCustomAttribute(attribute);
//Computed Column Attribute
if (column.IsComputed)
{
ConstructorInfo ComputedAttributeBuilder = typeof(DatabaseGeneratedAttribute).GetConstructor(new Type[] { typeof(DatabaseGeneratedOption) });
attribute = new CustomAttributeBuilder(ComputedAttributeBuilder, new object[] { DatabaseGeneratedOption.Computed });
propertyBuilder.SetCustomAttribute(attribute);
}
bool Browsable = column.Browsable;
Browsable = Browsable | (column.IsFK) | (column.IsPK);
//Browsable Attribute
ConstructorInfo BrowsableAttributeBuilder = typeof(BrowsableAttribute).GetConstructor(new Type[] { typeof(bool) });
attribute = new CustomAttributeBuilder(BrowsableAttributeBuilder, new object[] { Browsable });
propertyBuilder.SetCustomAttribute(attribute);
//Required Attribute
if (!column.ColumnIsNullable)
{
ConstructorInfo RequiredeAttributeBuilder = typeof(RequiredAttribute).GetConstructor(Array.Empty <Type>());
attribute = new CustomAttributeBuilder(RequiredeAttributeBuilder, Array.Empty <object>());
propertyBuilder.SetCustomAttribute(attribute);
}
}
if (!hasPKColumn && table is View)
{
//Create Fake pk
//Key Attribute
propertyBuilder = DynamicTypeBuilder.CreateProperty(builder, "virtualPK", typeof(int), false);
ConstructorInfo KeyAttributeBuilder = typeof(KeyAttribute).GetConstructor(Array.Empty <Type>());
attribute = new CustomAttributeBuilder(KeyAttributeBuilder, Array.Empty <object>());
propertyBuilder.SetCustomAttribute(attribute);
}
return(builder);
}
private void CreateNavigationProperties <T>(List <T> tables) where T : Table
{
foreach (Table table in tables)
{
TypeBuilder FKTypeBuilder;
TypeBuilder CollectionTypeBuilder;
TypeBuilder builder;
PropertyBuilder pb;
CustomAttributeBuilder attribute;
foreach (Column column in table.Columns)
{
if (_typeBuilders.TryGetValue(column.ReferencedVariableName, out TypeBuilder tbReferencedVariableName) &&
_typeBuilders.TryGetValue(table.VariableName, out TypeBuilder tbVariableName))
{
if (column.IsFK)
{
builder = tbVariableName;
//Createing FK Object
FKTypeBuilder = tbReferencedVariableName;
pb = DynamicTypeBuilder.CreateVirtualProperty(builder, DependentToPrimaryObjectName(column, table), FKTypeBuilder);
//DisplayName Attribute
ConstructorInfo DisplayNameAttributeBuilder = typeof(DisplayNameAttribute).GetConstructor(new Type[] { typeof(string) });
attribute = new CustomAttributeBuilder(DisplayNameAttributeBuilder, new object[] { Utils.GetFancyLabel(DependentToPrimaryObjectName(column, table)) });
pb.SetCustomAttribute(attribute);
//Browsable Attribute
ConstructorInfo BrowsableAttributeBuilder = typeof(BrowsableAttribute).GetConstructor(new Type[] { typeof(bool) });
attribute = new CustomAttributeBuilder(BrowsableAttributeBuilder, new object[] { true });
pb.SetCustomAttribute(attribute);
//DataMember Attribute
ConstructorInfo DataMemberAttributeBuilder = typeof(DataMemberAttribute).GetConstructor(Array.Empty <Type>());
attribute = new CustomAttributeBuilder(DataMemberAttributeBuilder, Array.Empty <object>());
pb.SetCustomAttribute(attribute);
//ReferencedDbObject Attribute
ConstructorInfo ReferencedDbObjectAttributeBuilder = typeof(ReferencedDbObjectAttribute).GetConstructor(new Type[] { typeof(string), typeof(string), typeof(string) });
attribute = new CustomAttributeBuilder(ReferencedDbObjectAttributeBuilder, new object[] { column.ReferencedDatabase, column.ReferencedSchema, column.ReferencedTable });
pb.SetCustomAttribute(attribute);
//Reference table object
builder = tbReferencedVariableName;
CollectionTypeBuilder = tbVariableName;
if (column.IsPK && table.Columns.Where(c => c.IsPK).Select(c => c.ReferencedTable).Distinct().Count() == 1)
{
//Create a single object for 1:1 relationships on when all PKs point to the same object
pb = DynamicTypeBuilder.CreateVirtualProperty(builder, PrimaryToDepdenty1To1ObjectName(column), CollectionTypeBuilder.UnderlyingSystemType);
//DisplayName Attribute
ConstructorInfo DisplayNameAttributeBuilder2 = typeof(DisplayNameAttribute).GetConstructor(new Type[] { typeof(string) });
attribute = new CustomAttributeBuilder(DisplayNameAttributeBuilder2, new object[] { Utils.GetFancyLabel(PrimaryToDepdenty1To1ObjectName(column)) });
pb.SetCustomAttribute(attribute);
}
else
{
//Creating Collection Object for the referenced table
pb = DynamicTypeBuilder.CreateVirtualProperty(builder, PrimaryToDependenty1ToManyListName(column, table), typeof(CustomList <>).MakeGenericType(new Type[] { CollectionTypeBuilder.UnderlyingSystemType }));
//InverseProperty Attribute
ConstructorInfo InversePropertyAttributeBuilder = typeof(InversePropertyAttribute).GetConstructor(new Type[] { typeof(string) });
attribute = new CustomAttributeBuilder(InversePropertyAttributeBuilder, new object[] { DependentToPrimaryObjectName(column, table) });
pb.SetCustomAttribute(attribute);
//DisplayName Attribute
ConstructorInfo DisplayNameAttributeBuilder2 = typeof(DisplayNameAttribute).GetConstructor(new Type[] { typeof(string) });
attribute = new CustomAttributeBuilder(DisplayNameAttributeBuilder2, new object[] { Utils.GetFancyLabel(PrimaryToDependenty1ToManyListName(column, table)) });
pb.SetCustomAttribute(attribute);
}
//Browsable Attribute
ConstructorInfo BrowsableAttributeBuilder2 = typeof(BrowsableAttribute).GetConstructor(new Type[] { typeof(bool) });
attribute = new CustomAttributeBuilder(BrowsableAttributeBuilder2, new object[] { true });
pb.SetCustomAttribute(attribute);
//DataMember Attribute
ConstructorInfo DataMemberAttributeBuilder2 = typeof(System.Runtime.Serialization.DataMemberAttribute).GetConstructor(Array.Empty <Type>());
attribute = new CustomAttributeBuilder(DataMemberAttributeBuilder2, Array.Empty <object>());
pb.SetCustomAttribute(attribute);
//ReferencedDbObject Attribute
ConstructorInfo ReferencedDbObjectAttributeBuilder2 = typeof(ReferencedDbObjectAttribute).GetConstructor(new Type[] { typeof(string), typeof(string), typeof(string) });
attribute = new CustomAttributeBuilder(ReferencedDbObjectAttributeBuilder2, new object[] { table.Database, table.Schema, table.Name });
pb.SetCustomAttribute(attribute);
}
}
}
}
}