Thanks! for replying Dave. While I am open to suggestions, I plan to
redirect the request such that as soon as the user clicks on any album
thumbnail - he gets redirected to a page (perhaps viewalbum.html) where all
images belonging to a particular album are listed.
Thanks, Rahul.
On Friday, June 20, 2014 12:31:14 AM UTC+5:30, Dave S wrote:
>
>
>
> 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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