django - How to convert many to many field to foreign key? -


lets have model class like;

class samplingquery(models.model):    brands = models.manytomanyfield(brand)

after while realize need convert manytomanyfield foreignkey need convert class foreignkey;

class samplingquery(models.model):    brands = models.foreignkey(brand)

is there way without losing data?

thank you

there no simple mechanism, can following:

  1. create new foreignkey (say, brand)

  2. copy existing data brands (by slicing first result since there can multiple manytomany relation) brand

  3. delete field brands


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