Hello
I want to do as more as possible using mapping by code using convention.
When i use table per subclass strategy for mapping inherited classes i can
define
Table name, PK column name, FK derived -> base in
mapper.BeforeMapJoinedSubclass
An i do this like
mapper.BeforeMapJoinedSubclass += (mi, t, map) =>
{
string tn = TableNameByEntityName(t.Name);
map.Table(tn);
map.Key(cm =>
{
cm.Column(PKNameForEntity(GetRootEntityType(t.BaseType).Name));
cm.ForeignKey(String.Concat("FK_", tn, "_2_",
TableNameByEntityName(t.BaseType.Name)));
});
};
It is enough and there is no need to define something in explicit mapping.
The same i can do in other events when mapping details collections.
But when i want split column for my root class, now I have to do something
like
public class MyEntityMap : ClassMapping<MyEntity>
{
public MyEntityMap()
{
........
Join("G1", jm =>
{
*MappingConvention.ConfigureSplit("G1", jm);* //Explicit call
for applying convention
jm.Property(x => x.JoinedStr);
});
}
}
And in my helper class:
public static void ConfigureSplit<T>(string splitGroupId, IJoinMapper<T>
joinMapper) where T : class
{
var t = typeof(T);
var tn = String.Concat(TableNameByEntityName(t.Name), "_",
splitGroupId).ToUpperInvariant();
joinMapper.Table(tn);
joinMapper.Key(km =>
{
km.Column(PKNameForEntity(t.Name));
km.ForeignKey(String.Concat("FK_", tn, "_2_",
TableNameByEntityName(t.Name)));
});
}
I want not to call MappingConvention.ConfigureSplit("G1", jm) in explecit
mapping
but has event like
mapper.BeforeMapSplitedGroup += (mi, t, map) =>
{
//where map is IJoinMapper<T>
//and it can be usefull to have access to split-groupId name via
IJoinMapper interface for defining table name
}
It will be analogical to subclasses and detail collections mapping.
Is such description will be enough for JIRA ticket?
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