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How to 'bulk update' with Django?
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Django 2.2 version now has a bulk_update method (release notes).
https://docs.djangoproject.com/en/stable/ref/models/querysets/#bulk-update
Example:
# get a pk: record dictionary of existing records
updates = YourModel.objects.filter(...).in_bulk()
....
# do something with the updates di...
Understanding what 'type' keyword does in Scala
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Scala actors: receive vs react
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Overlaying histograms with ggplot2 in R
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PHP shell_exec() vs exec()
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Emulating a do-while loop in Bash
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Recompile Heroku slug without push or config change
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Heroku have release a plugin that what is asked: https://github.com/heroku/heroku-repo
To install it:
$ heroku plugins:install heroku-repo
To force a rebuild:
$ heroku repo:purge_cache -a appname
$ heroku repo:reset -a appname
$ git push heroku
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What is a 'semantic predicate' in ANTLR?
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Haskell testing workflow
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How to play with Control.Monad.Writer in haskell?
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