private bool ExpandKey(EntityKeyInfo key)
{
if (key.IsExpanded())
{
return(true);
}
if (_keysInExpansion.Contains(key))
{
Log.LogError($"Cannot expand key/index {key.GetFullRef()}, ran into key circular reference.");
return(false);
}
try {
_keysInExpansion.Add(key);
if (key.KeyType.IsSet(KeyType.ForeignKey))
{
return(ExpandForeignKey(key));
}
ExpandRegularKey(key);
} finally {
_keysInExpansion.Remove(key);
}
key.HasIdentityMember = key.ExpandedKeyMembers.Any(m => m.Member.Flags.IsSet(EntityMemberFlags.Identity));
return(true);
}
// these are not key names in db, we assign DbKey.Name in DbModelBuilder using some special code
public static string ConstructKeyName(this EntityKeyInfo key)
{
Util.Check(key.IsExpanded(), "KeyMembers list must be expanded, cannot construct name. Entity: {0}, keytype: {1}",
key.Entity.Name, key.KeyType);
var entity = key.Entity;
var tName = entity.TableName ?? entity.Name;
var prefix = GetKeyNamePrefix(key.KeyType);
if (key.KeyType.IsSet(KeyType.PrimaryKey))
{
return(prefix + tName);
}
else if (key.KeyType.IsSet(KeyType.ForeignKey))
{
var target = key.OwnerMember.ReferenceInfo.ToKey.Entity;
return(prefix + tName + "_" + (target.TableName ?? target.Name));
}
else
{
var members = key.GetMemberNames();
string memberNames = string.Join(string.Empty, members).Replace("_", string.Empty); //remove underscores in names
return(prefix + tName + "_" + memberNames);
}
}