private void GetField(PropertyInfo propertyInfo, EntityMetaData metaData)
{
var fieldMetaData = new EntityFieldMetaData(metaData);
fieldMetaData.Name = propertyInfo.Name;
fieldMetaData.DbColumnName = propertyInfo.Name;
GetDefaultSqlType(propertyInfo.PropertyType, fieldMetaData);
var attributes = propertyInfo.GetCustomAttributes();
foreach (var attribute in attributes)
{
if (attribute is IgnoreAttribute)
{
return;
}
var attributeType = attribute.GetType();
if (_attributeHandlers.ContainsKey(attributeType))
{
_attributeHandlers[attributeType](attribute, fieldMetaData);
}
}
metaData.Fields.Add(fieldMetaData);
}
public ExpressionBuilder AddEqualsTo(EntityFieldMetaData field)
{
Expressions.Add(new EqualToOperatorExpression
{
Left = new EntityFieldMetaDataExpression(field),
Right = new ParameterExpression("@" + field.Name)
});
return(this);
}
private void GetDefaultSqlType(Type propertyType, EntityFieldMetaData m)
{
string defaultType = "";
if (_defaultTypes.ContainsKey(propertyType))
{
defaultType = _defaultTypes[propertyType];
}
SetColumnType(defaultType, m);
}
public void Test_FieldMetaData()
{
var sut = new EntityFieldMetaData <Person>(z => z.Name);
Assert.Equal(typeof(string), sut.Type);
Assert.Equal("Name", sut.Name);
var name = sut.GetExpression.Compile()(new Person
{
Name = "Tim",
Age = 35
});
Assert.Equal("Tim", name);
}
private void SetColumnType(string dataType, EntityFieldMetaData m)
{
if (string.IsNullOrWhiteSpace(dataType))
{
return;
}
var items = dataType.Split(new[] { '(', ')', ',' }, StringSplitOptions.RemoveEmptyEntries);
m.DbColumnType = items[0];
if (items.Length > 1)
{
m.Size = items[1];
}
if (items.Length > 2)
{
m.Precision = items[2];
}
}
private void SetTimestampAttribute(TimestampAttribute a, EntityFieldMetaData m)
{
m.IsRowVersion = true;
SetColumnType("Rowversion", m);
}
private void SetColumnAttribute(ColumnAttribute a, EntityFieldMetaData m)
{
m.DbColumnName = a.Name;
SetColumnType(a.TypeName, m);
}
public EntityFieldMetaDataExpression(EntityFieldMetaData entityFieldMetaData)
{
EntityFieldMetaData = Ensure.IsNotNull(entityFieldMetaData, nameof(entityFieldMetaData));
}
