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Showing posts with the label Foreign Keys
Filter Objects If All Its Foreignkeys Are In A Dictionary

Filter Objects If All Its Foreignkeys Are In A Dictionary

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what i need is to allow users to access list of Parent objects by filtering their related objects `… Read more Filter Objects If All Its Foreignkeys Are In A Dictionary
Do All Relationships Modeled In Sqlalchemy Have To Be Bi-directional?

Do All Relationships Modeled In Sqlalchemy Have To Be Bi-directional?

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I am learning python and sqlalchemy and modelled this relationship between shops and locale. I get … Read more Do All Relationships Modeled In Sqlalchemy Have To Be Bi-directional?
Retrieving Column From A Sqlalchemy Relationship

Retrieving Column From A Sqlalchemy Relationship

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I'm working on some wxpython widgets that integrate SQLalchemy, CRUD stuff. I've got a wx.C… Read more Retrieving Column From A Sqlalchemy Relationship
Foreignkey Field Related To Abstract Model In Django

Foreignkey Field Related To Abstract Model In Django

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I have this model: class BaseModel(models.Model): .... class Meta: abstract = True… Read more Foreignkey Field Related To Abstract Model In Django
Saving Formset With Drop-down-menu Foreignkey: Integrityerror Xxx_id May Not Be Null

Saving Formset With Drop-down-menu Foreignkey: Integrityerror Xxx_id May Not Be Null

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I am trying to have a formset where each form (PropertySelector) has a drop-down menu (PropertySele… Read more Saving Formset With Drop-down-menu Foreignkey: Integrityerror Xxx_id May Not Be Null
IntegrityError Insert Or Update On Table "orders_order" Violates Foreign Key Constraint "

IntegrityError Insert Or Update On Table "orders_order" Violates Foreign Key Constraint "

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I am trying to build an ecommerce site in Django 1.7 everything works except when I try to use the … Read more IntegrityError Insert Or Update On Table "orders_order" Violates Foreign Key Constraint "