private PropertyInfo ImplementReadPrimaryKeyAndGetPkProperty(
IClassBuilder entityClass,
EntityBehavior behavior,
Type entityType)
{
var pkProperty = ReflectionUtil.GetProperty(entityType, behavior.PrimaryKeyProperty);
if (pkProperty == null)
{
throw new InvalidOperationException($"{entityType.Name} is missing {behavior.PrimaryKeyProperty} property");
}
var idField = entityClass.HasField(pkProperty.PropertyType);
var idProp = entityClass.HasProperty(pkProperty.Name, pkProperty.PropertyType).WithModifier("public");
idProp.HasGetter().Write("return ").Write(idField).EndStatement();
idProp.HasSetter().Assign(idField, a => a.Write("value")).EndStatement();
var primaryKeyValueProperty = entityClass.HasProperty(nameof(IEntity.PrimaryKeyValue), typeof(object))
.WithModifier("public");
primaryKeyValueProperty.HasGetter().Write("return ").Write(idProp).EndStatement();
var primaryKeyValueSetter = primaryKeyValueProperty.HasSetter();
primaryKeyValueSetter.Write(idProp).Write(" = ").Write("(").Write(pkProperty.PropertyType).Write(")").Write(primaryKeyValueSetter.ValueParameter).EndStatement();
var readPkMethod = entityClass.HasMethod(nameof(IEntity.ReadPrimaryKey)).WithModifier("public").Returns <bool>();
var readerParam = readPkMethod.WithParam <IDataRecord>("reader");
readPkMethod.Body.If(
c =>
c.Write(readerParam)
.Write(".")
.Invoke(
nameof(IDataRecord.IsNull),
p => p.WithParam(code => code.Write("\"").Write(pkProperty.Name).Write("\""))),
then => then.Write("return false").EndStatement()).NewLine();
readPkMethod.Body.Assign(
idField,
a =>
a.Write(readerParam)
.Write(".Get<")
.Write(pkProperty.PropertyType)
.Write(">(\"")
.Write(pkProperty.Name)
.Write("\")")).EndStatement();
readPkMethod.Body.Write("return true").EndStatement();
return(pkProperty);
}
private IEnumerable <PropertyInfo> ImplementProperties(IClassBuilder entityClass, Type setupInterfaceType, EntityBehavior behavior)
{
foreach (var sourceProperty in ReflectionUtil.GetAllProperties(setupInterfaceType))
{
if (sourceProperty.Name == behavior.PrimaryKeyProperty)
{
continue;
}
if (!sourceProperty.CanRead)
{
continue;
}
try
{
if (string.IsNullOrWhiteSpace(m_setup.EntityNamingConvention.GetColumnName(sourceProperty)))
{
if (m_setup.EntityNamingConvention.TryGetRefEntityType(sourceProperty) == null)
{
ImplementDefaultProperty(entityClass, sourceProperty);
}
continue;
}
else
{
if (!sourceProperty.CanWrite)
{
throw new InvalidOperationException(
$"Property {sourceProperty.DeclaringType?.Name}.{sourceProperty.Name} seems to be a column, but has no setter");
}
if ((sourceProperty.Name.Length > 2) && sourceProperty.Name.EndsWith("Id") && !Attribute.IsDefined(sourceProperty, typeof(NotFkAttribute)))
{
var typedPropName = sourceProperty.Name.Substring(0, sourceProperty.Name.Length - 2);
var typedProp = ReflectionUtil.GetProperty(setupInterfaceType, typedPropName);
if ((typedProp == null) ||
(m_setup.EntityNamingConvention.TryGetRefEntityType(typedProp) == null))
{
throw new InvalidOperationException($"Property {sourceProperty.DeclaringType}.{sourceProperty.Name} seems to be a foreign key, but there is not any property {typedPropName} of Entity type to describe the reference. Add {typedPropName} or mark the property with {typeof(NotFkAttribute)}");
}
}
ImplementColumnProperty(entityClass, sourceProperty);
}
}
catch (Exception ex)
{
throw new InvalidOperationException($"Failed to map property {sourceProperty.DeclaringType}.{sourceProperty.Name}", ex);
}
yield return(sourceProperty);
}
}
