7stud -- wrote:
> 7stud -- wrote:
>> 7stud -- wrote:
>>>
>>> Link.create("url" => params[:url])
>>>
>>> (that assumes the links table has only one field: url)
>>>
>>> Apparently when you assign a Link object to the variable @link, rails
>>> will create a record in the database corresponding to the values in the
>>> Link object. If you look at the create method in the file
>>> LinksController.rb, that is what the create method does. This is what I
>>> came up with:
>>>
>>> @link = Link.create("url" => params[:url])
>>>
>>
>> After some more testing, I discovered that you don't have to assign the
>> Link object to @link. I think that when you create a Model object(e.g.
>> a Link object) and the Model is hooked up to a database, then as soon as
>> you create the object, rails inserts a record corresponding to that
>> object in the table.
>
> That isn't quite right either. You have to save an object for rails to
> enter it into a table:
>
> mylink = Link.new
> mylink.url = "www.somepage.com"
> mylink.save
>
> However, rails provides a convenience method, create(), that both
> instantiates a new object and inserts a record into the table. create()
> takes a hash of name/value pairs as an argument, where each name is a
> field in the table.
>
> (Or, you can pass create() an array of hashes, where each hash
> represents one record, and create() will insert multiple records at the
> same time.)
I'm not sure that I follow you. Completely bypassing the form would be
nice.
I changed the new method to:
def new
@link = Link.create("url" => params[:url])
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @link }
end
end
and it didn't get written to the database. When I changed it to:
def new
@link = Link.new("url" => params[:url])
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @link }
end
end
it goes to the form page with the correct URL in the textfield. This
was actually what I originally wanted, but it would be better to bypass
the form entirely.
Thanks for the help so far.
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