public IPrimitivePropertyBuilder Property(string property)
{
PrimitiveProperty entityProperty = this.EntityType.PrimitiveProperties.FirstOrDefault(a => a.Property.Name == property);
if (entityProperty == null)
{
throw new ArgumentException($"The mapping property list doesn't contain property named '{property}'.");
}
IPrimitivePropertyBuilder propertyBuilder = Activator.CreateInstance(typeof(PrimitivePropertyBuilder <>).MakeGenericType(entityProperty.Property.PropertyType), entityProperty) as IPrimitivePropertyBuilder;
return(propertyBuilder);
}
public EntityType(Type type)
{
this.Type = type;
this.TableName = type.Name;
PropertyInfo[] properties = this.Type.GetProperties(BindingFlags.Public | BindingFlags.Instance).Where(a => a.GetSetMethod() != null && a.GetGetMethod() != null).ToArray();
foreach (PropertyInfo property in properties)
{
MappingType mappingType;
if (!MappingTypeSystem.IsMappingType(property.PropertyType, out mappingType))
{
continue;
}
PrimitiveProperty primitiveProperty = new PrimitiveProperty(property);
primitiveProperty.DbType = mappingType.DbType;
primitiveProperty.IsNullable = property.PropertyType.CanNull();
if (string.Equals(property.Name, "id", StringComparison.OrdinalIgnoreCase))
{
/* 默认为主键 */
primitiveProperty.IsPrimaryKey = true;
if (Utils.IsAutoIncrementType(property.PropertyType))
{
primitiveProperty.IsAutoIncrement = true;
}
if (property.PropertyType == typeof(string))
{
//如果主键是 string 类型，默认为 AnsiString
primitiveProperty.DbType = System.Data.DbType.AnsiString;
}
}
this.PrimitiveProperties.Add(primitiveProperty);
}
}
void ConfigureColumnMapping()
{
var propertyInfos = this.EntityType.PrimitiveProperties.Select(a => a.Property).ToList();
foreach (PropertyInfo propertyInfo in propertyInfos)
{
IPrimitivePropertyBuilder propertyBuilder = this.Property(propertyInfo.Name);
propertyBuilder.IsPrimaryKey(false);
propertyBuilder.IsAutoIncrement(false);
var propertyAttributes = propertyInfo.GetCustomAttributes();
foreach (Attribute propertyAttribute in propertyAttributes)
{
propertyBuilder.HasAnnotation(propertyAttribute);
if (propertyAttribute is ColumnAttribute)
{
ColumnAttribute columnAttribute = (ColumnAttribute)propertyAttribute;
if (!string.IsNullOrEmpty(columnAttribute.Name))
{
propertyBuilder.MapTo(columnAttribute.Name);
}
if (columnAttribute.HasDbType())
{
propertyBuilder.HasDbType(columnAttribute.DbType);
}
propertyBuilder.IsPrimaryKey(columnAttribute.IsPrimaryKey);
propertyBuilder.IsRowVersion(columnAttribute.IsRowVersion);
propertyBuilder.HasSize(columnAttribute.GetSize());
propertyBuilder.HasScale(columnAttribute.GetScale());
propertyBuilder.HasPrecision(columnAttribute.GetPrecision());
continue;
}
if (propertyAttribute is NotMappedAttribute)
{
this.Ignore(propertyInfo.Name);
continue;
}
if (propertyAttribute is NotNullAttribute)
{
propertyBuilder.IsNullable(false);
continue;
}
if (propertyAttribute is AutoIncrementAttribute)
{
propertyBuilder.IsAutoIncrement(true);
continue;
}
if (propertyAttribute is UpdateIgnoreAttribute)
{
propertyBuilder.UpdateIgnore(true);
continue;
}
SequenceAttribute sequenceAttribute = propertyAttribute as SequenceAttribute;
if (sequenceAttribute != null)
{
propertyBuilder.HasSequence(sequenceAttribute.Name, sequenceAttribute.Schema);
}
}
}
List <PrimitiveProperty> primaryKeys = this.EntityType.PrimitiveProperties.Where(a => a.IsPrimaryKey).ToList();
if (primaryKeys.Count == 0)
{
//如果没有定义任何主键，则从所有映射的属性中查找名为 id 的属性作为主键
PrimitiveProperty idNameProperty = this.EntityType.PrimitiveProperties.Find(a => string.Equals(a.Property.Name, "id", StringComparison.OrdinalIgnoreCase) && !a.Property.IsDefined(typeof(ColumnAttribute)));
if (idNameProperty != null)
{
this.Property(idNameProperty.Property.Name).IsPrimaryKey();
primaryKeys.Add(idNameProperty);
}
}
if (primaryKeys.Count == 1 && this.EntityType.PrimitiveProperties.Count(a => a.IsAutoIncrement) == 0)
{
/* 如果没有显示定义自增成员，并且主键只有 1 个，如果该主键满足一定条件，则默认其是自增列 */
PrimitiveProperty primaryKey = primaryKeys[0];
if (string.IsNullOrEmpty(primaryKey.SequenceName) && Utils.IsAutoIncrementType(primaryKey.Property.PropertyType) && !primaryKey.Property.IsDefined(typeof(NonAutoIncrementAttribute)))
{
this.Property(primaryKey.Property.Name).IsAutoIncrement();
}
}
}
public PrimitivePropertyBuilder(PrimitiveProperty property)
{
this.Property = property;
}