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    <p>The app you need is <a href="http://south.aeracode.org/" rel="nofollow noreferrer">South</a><br> Here are the steps (refer to the doc for more details) : </p> <pre><code>./manage.py convert_to_south yourapp </code></pre> <p>this will create a migration folder and fake a first migration </p> <p>Then add a <code>new_dateOfJoin</code> DateField in your models.py :</p> <pre><code>./manage.py migrate yourapp </code></pre> <p>this will create and apply immediatly a migration (named 0002_...) to add this field in the db</p> <p>Create a <a href="http://south.aeracode.org/docs/tutorial/part3.html#data-migrations" rel="nofollow noreferrer">datamigration 0003 file</a> where you will just cast your text value to date and save it in your new field Then apply this migration :</p> <pre><code>./manage.py migrate yourapp </code></pre> <p>Modify your models.py file to comment out the old datefield and migrate again (this will create the 0004_.... migration file)</p> <p>The last step is to rename the db field so you don't have to modify your existing code:</p> <pre><code>./manage.py schemamigration yourapp rename_dateofjoin --empty </code></pre> <p>This will create an empty schema migration file named <code>0005_rename_dateofjoin</code><br> Manually modify this 0005 file like explained <a href="https://stackoverflow.com/questions/2862979/easiest-way-to-rename-a-model-using-django-south">here</a> , but use <code>db.rename_column('app_foo', 'name', 'full_name')</code> like in <a href="https://stackoverflow.com/questions/3235995/django-how-to-rename-a-model-field-using-south">this other example</a>.</p> <p>Dropping your whole table instead of these 5 steps can be easier, but if you have multiple instance of the app (like a working production server and a develpement machine) you need this kind of tools.<br> With better understanding of South, one could also do this in less than 5 steps, but as migrations can be tricky to undone or reproduce sometimes, I prefer to have distinct steps...</p>
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    1. POChanging the Django data type in models without dropping the table
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    1. USDominique Guardiola
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    1. COthanks for the reply Dominique :)
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    2. COYou're welcome. If it answers your question, please click on the "check" mark next to my answer so it closes the question.
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    3. COThank you, very useful walk-through!
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