On Wednesday, June 18, 2014 1:50:09 AM UTC-7, Rahul wrote:
>
>
> Hi All,
> I am writing an image gallery in my app. I am stuck up here -
> I want to display images that belong to a particular album when I select
> that album in the view. Although I am able to display albums in the view,
> but cannot proceed further to display images belonging to that particular
> albums after clicking the album (from the view).
>
> here are the table in *db.py* -
> db.define_table('photoalbum',
> Field('reguser_id'),
> Field('album_name'),
> Field('short_description'),
> )
>
> db.define_table(photos',
> Field('reguser_id'),
> Field('caption'),
> Field('category', requires=IS_IN_SET(pix_cat)),
> Field('description', 'text'),
> Field('upload_photo', 'upload' , uploadfolder=request.folder + 'static
> /uploads', default=0, autodelete=True,),
> Field('album_name', requires=IS_IN_SET(albums)),
> )
>
> I would think you want the last line to be a reference, like
> Field('album_name',
> 'reference photoalbum');
>
> Controller - *default.py *
>
> def myalbums():
>
> ## selects all albums
> allalbums = db(db.photoalbum.reguser_id == session.logged_in_user_id).
> select(db.photoalbum.album_name)
>
> # selects descriptions for all albums
> alldescriptions = db(db.photoalbum.reguser_id == session.
> logged_in_user_id). select(db.photoalbum.short_description)
>
> ## selects photos
> allimages = db(db.photos.reguser_id == session.logged_in_user_id).
> select(db.photos.upload_photo, db.photos.caption, db.photos.description,
> cache=(cache.ram,20))
>
> return dict(allalbums=allalbums, alldescriptions=alldescriptions,
> allimages=allimages)
>
>
> Code in the view *myalbum.html*
> <!-- New Try -->
>
> {{for i in range(len(allalbums)):}}
>
> <ul class="thumbnails">
> <!-- Iterate over all images - -->
> <li class="span2">
> <div class="thumbnail">
> <!-- <img data-src="holder.js/300x200" alt="300x200" style="">
> -->
>
> {{=(A(IMG(_src=URL(r=request,c='static\images',f='vimage.jpg')),
> _href=URL (r=request,c='default', f='myalbums', args=[allalbums[i].
> album_name]) ))}}
>
>
> <div class="caption">
> <h5>{{=allalbums[i].album_name}}</h5>
> <p>{{=alldescriptions[i].short_description}}</p>
>
>
> </div>
>
> </div>
> </li>
>
> {{pass}}
> {{pass}}
>
>
> Here I can get the album names in the view but when I click on it, it
> should query all the photos belonging to that particular (as specified in
> args) albumname and show all images in another page or a carousel that I
> would create.
>
>
Do you want a redirect, or to have multiple pages open at a time?
In either case, don't you need a link (to another controller) or an action
(from a form) that would query for somethng like db(photos.album_name ==
var.album_name).select() ?
I'm not a dab hand at this; I'm still bouncing back and forth in the manual
as I type this,
<http://web2py.com/books/default/chapter/29/06/the-database-abstraction-layer#One-to-many-relation>
but there's a bunch of examples in the recent posts to this list.
Grabbing one thread rather quickly, this one might have some pertinence:
<https://groups.google.com/d/msg/web2py/nDBOL7w6qB4/3181A5kRWSAJ>
> Again - The image vimage.jpg specified in the view is a static image, can
> the thumbnail image representing a particular album be created from an
> image from within the album ? Please suggest ..
>
> I've read about the thumbnail processing in the book, and a couple of
examples in the groups since last summer, but haven't actually tried it.
So I'll defer to others, other than to say that "seems possible".
/dps
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