I'm wondering if anyone can help with the following?
I am trying to build a form that will allow a user to view a grid of scraped
image thumbnails,
and delete a subset of these.
I am stuck trying to understand how to wire the form. I'm wondering if there is
an example that
shows how to select a subset of has_many associations to delete?
My app has two models: ScrapeJob and Scrape
ScrapeJob represents an entire page
Scrape holds a single image (using paperclip)
has_attached_file :photo,
:styles => {
:thumb=> "100x100#",
:small => "400x400>" }
ScrapeJob has_many :scrapes
When a ScrapeJob is created it uses a callback to scrape the chosen page after
the model object is written to the DB
after_save :start_scraping
I have extended the Card for Scrape so that the ScrapeJob show page shows the
images
<extend tag="card" for="Scrape" >
<old-card merge>
<heading: param>
<img src="#{this.photo(:thumb)}" />
</heading:>
</old-card>
</extend>
My challenge is making the edit page work.
I understand that <select-many> and <check-many> work with existing objects,
whilst the tag <input-many> is intended for new objects.
When my edit page looks like this
<def tag="edit-page-new">
<edit-page merge>
<content-body:>
< select-many:scrapes><img src="#{this.photo(:thumb)}" /> </select-many>
</content-body:>
</edit-page>
</def>
<edit-page-new/>
I see a list of scrapes, though not the images, and I can remove items from the
list, but I do not have a save button to save the change.
If I use <input-many:scrapes> in place of <select-many> then my form does show
each image, with a remove-item button adjacent to each image, but still
doesn't do anything.
Is there an example that might point me in the right direction here?
Much thanks,
Peter Booth
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