是通过调用`delete()`方法来删除。MpttModel是Django中用于实现树形结构的模型,它基于MPTT(Modified Preorder Tree Traversal)算法。 删除所有...
# 需要导入模块: from mptt import models [as 别名]# 或者: from mptt.models importMPTTModel[as 别名]defformfield_for_foreignkey(self, db_field, request, **kwargs):ifissubclass(db_field.rel.to,MPTTModel) \andnotisinstance(db_field, TreeForeignKey) \anddb_field.namenotinself.raw_id_fields:...
This paper deals with the modelling of viscoelastic flows in transient regimes using the Modified Phan Tien and Tanner (MPTT) model. This model is the most recent one which can predict stress overshoot in unsteady shear flow and is based on the description of the liquid microstructure rather ...
# 需要导入模块: from mptt import models [as 别名]# 或者: from mptt.models importMPTTModel[as 别名]defformfield_for_foreignkey(self, db_field, request, **kwargs):ifissubclass(db_field.rel.to,MPTTModel) \andnotisinstance(db_field, TreeForeignKey) \anddb_field.namenotinself.raw_id_fields:...
The Modified Phan-Thien and Tanner model (MPTT) is considered in this paper for an axisymmetric flow in a pipe. The shear stresses calculation with this model is an important step as it allows to study subsequently some important phenomena as the corrosion or the pressure drop which is ...