#29607: Add doc examples of handling files and their lifecycles with
     Reporter:  Thomas Grainger      |                    Owner:  Chris
         Type:                       |  Adams
  Cleanup/optimization               |                   Status:  assigned
    Component:  Documentation        |                  Version:  2.0
     Severity:  Normal               |               Resolution:
     Keywords:                       |             Triage Stage:  Accepted
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
Changes (by Chris Adams):

 * status:  new => assigned
 * cc: Chris Adams (added)
 * owner:  nobody => Chris Adams


 I'm happy to have a go at this.

 I'm started in this branch here, adding some docs for common use cases
 outlined above:

 - set a file by passing the file path to the instance
 - set a file by making a brand new file with ContentFile
 - update a file by opening in a context manager, editing the file in
 memory then saving
 - work with a large file, using the __iter__ in a loop
 - work with a large file, in chunks, using chunks()

 I wasn't sure what this referred to though - can you give me any pointers?

 > cleaning up the FieldFile so that other code that accesses the file
 still works


 For what it's worth, I'm really in favour of the pathlib
 `instance.file.read()` syntax as outlined above - not having to faff with
 context managers is really nice syntactic sugar.

Ticket URL: <https://code.djangoproject.com/ticket/29607#comment:3>
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