private static void InitializeSharedColumns(IUpdateEntry entry, bool updating, Dictionary <string, ColumnValuePropagator> columnMap)
{
foreach (var property in entry.EntityType.GetProperties())
{
var columnName = property.GetColumnName();
if (!columnMap.TryGetValue(columnName, out var columnPropagator))
{
columnPropagator = new ColumnValuePropagator();
columnMap.Add(columnName, columnPropagator);
}
if (updating)
{
columnPropagator.RecordValue(property, entry);
}
}
}
private void InitializeSharedColumns(
IUpdateEntry entry, ITableMappingBase tableMapping, bool updating, Dictionary <string, ColumnValuePropagator> columnMap)
{
foreach (var columnMapping in tableMapping.ColumnMappings)
{
var columnName = columnMapping.Column.Name;
if (!columnMap.TryGetValue(columnName, out var columnPropagator))
{
columnPropagator = new ColumnValuePropagator();
columnMap.Add(columnName, columnPropagator);
}
if (updating)
{
columnPropagator.RecordValue(columnMapping.Property, entry);
}
}
}
private void InitializeSharedColumns(IUpdateEntry entry, bool updating, Dictionary <string, ColumnValuePropagator> columnMap)
{
foreach (var property in entry.EntityType.GetProperties())
{
var columnName = property.FindColumn(StoreObjectIdentifier.Table(TableName, Schema))?.Name;
if (columnName == null)
{
continue;
}
if (!columnMap.TryGetValue(columnName, out var columnPropagator))
{
columnPropagator = new ColumnValuePropagator();
columnMap.Add(columnName, columnPropagator);
}
if (updating)
{
columnPropagator.RecordValue(property, entry);
}
}
}
private IReadOnlyList <ColumnModification> GenerateColumnModifications()
{
var state = EntityState;
var adding = state == EntityState.Added;
var updating = state == EntityState.Modified;
var columnModifications = new List <ColumnModification>();
Dictionary <string, ColumnValuePropagator> sharedTableColumnMap = null;
if (_entries.Count > 1 ||
(_entries.Count == 1 && _entries[0].SharedIdentityEntry != null))
{
sharedTableColumnMap = new Dictionary <string, ColumnValuePropagator>();
if (_comparer != null)
{
_entries.Sort(_comparer);
}
foreach (var entry in _entries)
{
var tableMapping = GetTableMapping(entry.EntityType);
if (tableMapping == null)
{
continue;
}
if (entry.SharedIdentityEntry != null)
{
var sharedTableMapping = GetTableMapping(entry.SharedIdentityEntry.EntityType);
if (sharedTableMapping != null)
{
InitializeSharedColumns(entry.SharedIdentityEntry, sharedTableMapping, updating, sharedTableColumnMap);
}
}
InitializeSharedColumns(entry, tableMapping, updating, sharedTableColumnMap);
}
}
foreach (var entry in _entries)
{
var nonMainEntry = updating &&
(entry.EntityState == EntityState.Deleted ||
entry.EntityState == EntityState.Added);
var tableMapping = GetTableMapping(entry.EntityType);
if (tableMapping == null)
{
continue;
}
foreach (var columnMapping in tableMapping.ColumnMappings)
{
var property = columnMapping.Property;
var column = (IColumn)columnMapping.Column;
var isKey = property.IsPrimaryKey();
var isCondition = !adding && (isKey || property.IsConcurrencyToken);
var readValue = state != EntityState.Deleted && entry.IsStoreGenerated(property);
ColumnValuePropagator columnPropagator = null;
sharedTableColumnMap?.TryGetValue(column.Name, out columnPropagator);
var writeValue = false;
if (!readValue)
{
if (adding)
{
writeValue = property.GetBeforeSaveBehavior() == PropertySaveBehavior.Save;
}
else if ((updating && property.GetAfterSaveBehavior() == PropertySaveBehavior.Save) ||
(!isKey && nonMainEntry))
{
writeValue = columnPropagator?.TryPropagate(property, entry)
?? entry.IsModified(property);
}
}
if (readValue ||
writeValue ||
isCondition)
{
if (readValue)
{
_requiresResultPropagation = true;
}
var columnModification = new ColumnModification(
entry,
property,
column,
_generateParameterName,
columnMapping.TypeMapping,
readValue,
writeValue,
isKey,
isCondition,
_sensitiveLoggingEnabled);
if (columnPropagator != null &&
column.PropertyMappings.Count() != 1)
{
if (columnPropagator.ColumnModification != null)
{
columnPropagator.ColumnModification.AddSharedColumnModification(columnModification);
continue;
}
columnPropagator.ColumnModification = columnModification;
}
columnModifications.Add(columnModification);
}
}
}
return(columnModifications);
}
