private IReadOnlyList <ColumnModification> GenerateColumnModifications()
{
var adding = EntityState == EntityState.Added;
var columnModifications = new List <ColumnModification>();
var srcType = _values?.GetType();
foreach (var property in _entry.EntityType.GetProperties())
{
var propertyAnnotations = property.Relational();
var isKey = property.IsPrimaryKey();
var isConcurrencyToken = property.IsConcurrencyToken;
var isCondition = !adding && (isKey || isConcurrencyToken);
var readValue = _entry.IsStoreGenerated(property);
var writeValue = false;
object value = null;
var srcProp = srcType?.GetProperty(property.Name);
if (!readValue)
{
var modified = false;
if (srcProp != null)
{
value = srcProp.GetValue(_values);
_entry.SetCurrentValue(property, value);
modified = true;
}
if (adding && property.BeforeSaveBehavior == PropertySaveBehavior.Save ||
property.AfterSaveBehavior == PropertySaveBehavior.Save && modified)
{
writeValue = true;
}
}
if (readValue || writeValue || isCondition)
{
var columnModification = new ColumnModification(
_entry,
property,
propertyAnnotations,
() => GenerateParameterName(isCondition && isConcurrencyToken),
readValue && !_writeOnly,
writeValue,
isKey,
isCondition,
isConcurrencyToken);
columnModifications.Add(columnModification);
}
}
return(columnModifications);
}