mmm first. Navigators nevers send the text of the link, so you cannot
get it anyway.
Second, you're using literals instead of variables. This line:
items.filter("type =", "merchandise_type")
must be:
items.filter("type =", merchandise_type)
There are a great difference between the string "merchandise_type" and
the variable merchandise_type that could be any value.
Third, you must use URL parameters for this purpose, so you links must
be something like this:
<a href="/dir?type=tshirt">Tshirt</a>
<a href="/dir?type=other">other</a>
And in your handler:
merchandise_type = self.request.get("type", "")
# save in a variable (called merchandise_type for example) the
parameter passed to the page
# first argument is the parameter name, and second the default value
if the parameter is not present (security!)
# and again, if you want more security
if not merchandise_type in ['tshirt', 'other']:
#error message here
else:
#show page items
# or if you don't matter about security show page items directly
On 20 ene, 18:02, Zeynel <[email protected]> wrote:
> Hello,
>
> I am creating a new directory page to list Merchandise. The /dir/
> dhp.html page has these links:
>
> <ul>
> <li><b>Merchandise</b></li>
> <ul>
> <li><a href="/dir">Tshirts</a></li>
> <li><a href="/dir">Mugs</a></li>
> <li><a href="/dir">Posters</a></li>
> </ul>
> <li><b>Articles</b></li>
> <li><b>Video</b></li>
> </ul>
>
> /dir is handled by the Directory handler which will get the relevant
> merchandise type from the database and display it.
>
> This is my model:
>
> class Item(db.Model):
> user_who_liked_this_item = db.UserProperty()
> title = db.StringProperty()
> url = db.StringProperty()
> date = db.DateTimeProperty(auto_now_add=True)
> points = db.IntegerProperty(default=1)
> type = db.StringProperty()
>
> In Directory handler I do this:
>
> items = Item.all()
> items.filter("type =", "merchandise_type")
>
> for item in items:
> # display the items...
>
> For this to work I need to get the link text for each merchandise and
> say, for instance
>
> merchandise_type = "tshirt"
> items = Item.all()
> items.filter("type =", "merchandise_type")
>
> so that Directory handler fetches the "tshirt" type from the datastore
> when "tshirts" is clicked.
>
> I know this is easy to do but I could not figure it out. Thanks for
> your help.
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