django templates include and extends

Question

I would like to provide the same content inside 2 different base files    So I m trying to do this   page1 html      extends  base1 html        include  commondata html       page2 html      extends  base2 html         include  commondata html       The problem is that I can t seem to use both extends and include   Is there some way to do that   And if not  how can I accomplish the above   commondata html overrides a block that is specified in both base1 html and base2 html  The purpose of this is to provide the same page in both pdf and html format  where the formatting is slightly different   The above question though simplifies what I m trying to do so if I can get an answer to that it will solve my problem

User · Answer

Edit 10th Dec 2015  As pointed out in the comments  ssi is deprecated since version 1 8  According to the documentation       This tag has been deprecated and will be removed in Django 1 10  Use the include tag instead      In my opinion  the right  best  answer to this question is the one from podshumok  as it explains why the behaviour of include when used along with inheritance   However  I was somewhat surprised that nobody mentioned the ssi tag provided by the Django templating system  which is specifically designed for inline including an external piece of text  Here  inline means the external text will not be interpreted  parsed or interpolated  but simply  copied  inside the calling template   Please  refer to the documentation for further details  be sure to check your appropriate version of Django in the selector at the lower right part of the page    https   docs djangoproject com en dev ref templates builtins  ssi  From the documentation    ssi Outputs the contents of a given file into the page  Like a simple include tag     ssi    includes the contents of another file     which must be specified using an absolute path     in the current page    Beware also of the security implications of this technique and also of the required ALLOWED INCLUDE ROOTS define  which must be added to your settings files

User · Answer

This should do the trick for you  put include tag inside of a block section    page1 html      extends  base1 html         block foo          include  commondata html        endblock      page2 html      extends  base2 html         block bar          include  commondata html        endblock

User · Answer

From Django docs      The include tag should be considered as an implementation of  render this subtemplate and include the HTML   not as  parse this subtemplate and include its contents as if it were part of the parent   This means that there is no shared state between included templates -- each include is a completely independent rendering process    So Django doesn t grab any blocks from your commondata html and it doesn t know what to do with rendered html outside blocks

User · Answer

Added for reference to future people who find this via google   You might want to look at the    overextend    tag provided by the mezzanine library for cases like this

User · Answer

You can t pull in blocks from an included file into a child template to override the parent template s blocks   However  you can specify a parent in a variable and have the base template specified in the context   From the documentation         extends variable    uses the value of variable  If the variable evaluates to a string  Django will use that string as the name of the parent template  If the variable evaluates to a Template object  Django will use that object as the parent template    Instead of separate  page1 html  and  page2 html   put    extends base template    at the top of  commondata html    And then in your view  define base template to be either  base1 html  or  base2 html

User · Answer

More info about why it wasn t working for me in case it helps future people   The reason why it wasn t working is that    include    in django doesn t like special characters like fancy apostrophe   The template data I was trying to include was pasted from word   I had to manually remove all of these special characters and then it included successfully

User · Answer

When you use the extends template tag  you re saying that the current template extends another -- that it is a child template  dependent on a parent template   Django will look at your child template and use its content to populate the parent   Everything that you want to use in a child template should be within blocks  which Django uses to populate the parent   If you want use an include statement in that child template  you have to put it within a block  for Django to make sense of it   Otherwise it just doesn t make sense and Django doesn t know what to do with it   The Django documentation has a few really good examples of using blocks to replace blocks in the parent template   https   docs djangoproject com en dev ref templates language  template-inheritance

[python] django templates: include and extends

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