public Model(ModelArgs args)
: base(args)
{
_init_batch_counters();
}
public Model(ModelArgs args)
: base(args)
{
}
protected virtual bool TrySetValueInternal(string memberName, ModelArgs args, object value)
{
PropertyInfo pi = GetModelPropertyInfo(memberName);
Field field = value as Field;
if (CanConfigure)
{
if (field == null)
throw new Exception("value must be of type <Field> inside the Configure function.");
if (_fields.ContainsKey(memberName))
throw new Exception(string.Format("Field {0} already set.", memberName));
field.Name = memberName;
_fields.Add(field.Name, field);
if (pi == null)
_fieldValues.Add(field.Name, null);
}
else
{
if (field != null)
throw new Exception("Can't add fields outside the Configure function.");
if(pi == null && !_fields.ContainsKey(memberName))
throw new Exception(string.Format("Field {0} not found.", memberName));
if(pi != null)
pi.SetValue(this, value, null);
else
_fieldValues[memberName] = value;
}
return true;
}
protected virtual bool TryGetValueInternal(string memberName, ModelArgs args, out object result)
{
// DynamicModel property
if (memberName == "Fields")
{
result = Fields;
return true;
}
// DynamicModel property
else if (memberName == "ModelName")
{
result = ModelName;
return true;
}
else
{
PropertyInfo pi = GetModelPropertyInfo(memberName);
if (!_fields.ContainsKey(memberName))
{
if (pi != null)
{
result = pi.GetValue(this, null);
return true;
}
else
{
return GetDynamicQueryResult(memberName, args, out result);
}
}
else
{
if (CanConfigure)
result = _fields[memberName];
else
{
if (_fields[memberName].FieldType == FieldType.ManyToMany)
return GetDynamicQueryResult(memberName, args, out result);
if (pi != null)
result = pi.GetValue(this, null);
else
result = _fieldValues[memberName];
}
return true;
}
}
}
protected virtual bool GetDynamicQueryResult(string query, ModelArgs args, out object result)
{
result = null;
return false;
}
public Linear(ModelArgs args) : base(args)
{
dense = keras.layers.Dense(1, activation: null,
kernel_initializer: tf.zeros_initializer, bias_initializer: tf.zeros_initializer);
StackLayers(dense);
}
protected override bool GetDynamicQueryResult(string query, ModelArgs args, out object result)
{
ModelInfo relatedModelInfo = null;
string relatedModelField = null;
IModel joinedModel = null;
string joinedField = null;
string joinConditionField = null;
if (query != null)
{
Field field = GetField(query);
if (field != null && field.FieldType == FieldType.ManyToMany)
{
ManyToManyField m2mField = (ManyToManyField)field;
relatedModelInfo = OrmManager.GetModelInfo(m2mField.ReferencedType);
relatedModelField = relatedModelInfo.PKField.DbName;
joinedModel = OrmManager.GetModelInfo(m2mField.IntermediaryModel);
joinedField = joinedModel.GetForeignKeyField(relatedModelInfo.ModelType).DbName;
joinConditionField = joinedModel.GetForeignKeyField(ModelType).DbName;
}
else
{
string[] qSplit = query.Split('_');
if (qSplit.Length == 2)
{
string queryExpr = qSplit[1].ToLower();
if (queryExpr == "set")
{
string relatedModelName = qSplit[0];
relatedModelInfo = OrmManager.GetModelInfo(relatedModelName);
// case reverse m2m
FieldInfo m2mInfo = relatedModelInfo.GetManyToManyField(ModelType);
if (m2mInfo != null)
{
relatedModelField = relatedModelInfo.PKField.DbName;
joinedModel = OrmManager.GetModelInfo(m2mInfo.IntermediaryModel);
joinedField = joinedModel.GetForeignKeyField(relatedModelInfo.ModelType).DbName;
joinConditionField = joinedModel.GetForeignKeyField(ModelType).DbName;
}
else
{
// case reverse FK
FieldInfo fkInfo = relatedModelInfo.GetForeignKeyField(ModelType);
if (fkInfo != null)
{
relatedModelField = fkInfo.DbName;
joinedModel = this;
joinedField = PKField.DbName;
joinConditionField = joinedField;
}
}
}
}
}
if (joinedModel != null)
{
Manager relatedManager = new Orm.Manager(relatedModelInfo.ModelType);
relatedManager.PreFilter = new Queryset(relatedManager);
relatedManager.PreFilter.Join(
relatedModelField,
joinedModel,
joinedField,
QueryJoin.JoinType.INNER,
new AndExprGroup().Add(joinConditionField, Constants.QueryCompareOps.EXACT, PK));
result = relatedManager.CreateQuerySet();
return true;
}
}
result = null;
return false;
}
