Comments (2)
Thanks for your interest, I hope the project continues to be useful for you.
This library only really supports exports where the schema of the CSV closely aligns to a django model. When we have more elaborate CSV needs, we just roll them ourselves.
Many-to-many relationships are hard to express in a CSV. Not only would you have to choose a particular field or string serialization technique for the related model, you also have to stuff it into a collection or reduce to a single value.
For example:
class Person(models.model):
name = models.CharField()
places = models.ManyToManyField('Place')
class Place(models.model):
description = models.CharField()
location = models.PointField()
could lead to a csv like:
name,places\n
rust,"[(0,0),(1,1),(2,2)]"\n
marty,"[(0,1),(1,0),(3,3)]"\n
Where you'd have chosen the location
field on Place
, as well as an array as the way to collapse the multiple values.
There's no plan to support this, but I'll leave this issue open for a time to keep the discussion open for things I've failed to consider.
from django-queryset-csv.
Any way of specifying number of items only? Like in above example one could choose "Kathmandu" and "Pokhara" (cities from Nepal), and then the result could be "2"? That might be easier? If so, how?
from django-queryset-csv.
Related Issues (20)
- Pushing artifacts to PyPI causes Travis CI build to fail HOT 3
- non AscII characters HOT 1
- what happens if canceled download the file? HOT 1
- render csv with post data from form HOT 1
- How to customize the filename of CSV generated HOT 2
- Maybe, a Django-csv-load? HOT 1
- csv download has no extension HOT 1
- Django 3: Error importing six from django.utils (deprecated module) HOT 1
- 'WSGIRequest' object has no attribute 'model'
- RawQuerySet HOT 1
- Missing six requirement HOT 1
- Add more documentation for write_csv function in README
- New pip package HOT 2
- Cleaning filenames provided by the keyword HOT 2
- Document the filename and append_datestamp arguments to render_to_csv_response
- Strange characters in ID column title, with MS Excel HOT 2
- Enhancement HOT 1
- Using field display name HOT 2
- Following example in README doesn't work on Python 3.5 environment. HOT 1
- Broken code snippets in intro blog post
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from django-queryset-csv.