Django Cookies how can I set them

Question

I have a web site which shows different content based on a location the visitor chooses  e g  User enters in 55812 as the zip  I know what city and area lat long  that is and give them their content pertinent to that area  My question is how can I store this in a cookie so that when they return they are not required to always enter their zip code   I see it as follows    Set persistent cookie based on their area  When they return read cookie  grab zipcode  Return content based on the zip code in their cookie    I can t seem to find any solid information on setting a cookie  Any help is greatly appreciated

User · Answer

Using Django s session framework should cover most scenarios  but Django also now provide direct cookie manipulation methods on the request and response objects  so you don t need a helper function    Setting a cookie   def view request     response   HttpResponse  blah     response set cookie  cookie name    cookie value     Retrieving a cookie   def view request     value   request COOKIES get  cookie name     if value is None        Cookie is not set      OR    try      value   request COOKIES  cookie name     except KeyError        Cookie is not set

User · Answer

You could manually set the cookie  but depending on your use case  and if you might want to add more types of persistent session data in future  it might make more sense to use Django s sessions feature   This will let you get and set variables tied internally to the user s session cookie   Cool thing about this is that if you want to store a lot of data tied to a user s session  storing it all in cookies will add a lot of weight to HTTP requests and responses   With sessions the session cookie is all that is sent back and forth  though there is the overhead on Django s end of storing the session data to keep in mind

User · Answer

Anyone interested in doing this should read the documentation of the Django Sessions framework  It stores a session ID in the user s cookies  but maps all the cookies-like data to your database  This is an improvement on the typical cookies-based workflow for HTTP requests   Here is an example with a Django view      def homepage request        request session setdefault  how many visits   0      request session  how many visits      1      print request session  how many visits         return render request   home html         If you keep visiting the page over and over  you ll see the value start incrementing up from 1 until you clear your cookies  visit on a new browser  go incognito  or do anything else that sidesteps Django s Session ID cookie

User · Answer

UPDATE   check Peter s answer below for a builtin solution   This is a helper to set a persistent cookie  import datetime  def set cookie response  key  value  days expire 7       if days expire is None          max age   365   24   60   60    one year     else          max age   days expire   24   60   60     expires   datetime datetime strftime          datetime datetime utcnow     datetime timedelta seconds max age            quot  a   d- b- Y  H  M  S GMT quot             response set cookie          key          value          max age max age          expires expires          domain settings SESSION COOKIE DOMAIN          secure settings SESSION COOKIE SECURE or None         Use the following code before sending a response  def view request       response   HttpResponse  quot hello quot       set cookie response   name    jujule       return response  UPDATE   check Peter s answer below for a builtin solution

[django] Django Cookies, how can I set them?

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