Unsure and no luck so far on how to save the params from 3 text fields all
for the same object / method. I guess this would be an array of arrays ?
{"cantitle"=>{"1"=>{"title_opt"=>"CEO"},
"2"=>{"title_opt"=>"COO"},
"3"=>{"title_opt"=>"CIO"}},
Stuart
--
http://en.wikipedia.org/wiki/Dark_ambient
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I think you could use :serialize to move this array/hash data into and out of a text field in your db table. c. Stuart Fellowes wrote:> Unsure and no luck so far on how to save the params from 3 text fields > all > for the same object / method. I guess this would be an array of arrays > ? > > {"cantitle"=>{"1"=>{"title_opt"=>"CEO"}, "2"=>{"title_opt"=>"COO"}, > "3"=>{"title_opt"=>"CIO"}}, >-- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
No I would loop them as each needs to be a seperate record. However I just
can''t figure out how to call them.
{"cantitle"=>{"1"=>{"title_opt"=>"CEO"},
"2"=>{"title_opt"=>"COO"},>
"3"=>{"title_opt"=>"CIO"}},
The formfields are like this <%text_field :cantitle, :title_opt, index =>
1%>
<%text_field :cantitle, :title_opt, index => 2%>
<%text_field :cantitle, :title_opt, index => 3%>
I had to add index to make them all individual params.
Just can''t figure out what they are called. ??
"[cantitle][:1][:title_opt] etc ? Maybe, not in front of my dev machine
right now.
Stuart
On 10/25/06, Cayce Balara
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org>
wrote:>
>
> I think you could use :serialize to move this array/hash data into and
> out of a text field in your db table.
>
> c.
>
>
> Stuart Fellowes wrote:
> > Unsure and no luck so far on how to save the params from 3 text
fields
> > all
> > for the same object / method. I guess this would be an array of
arrays
> > ?
> >
> >
{"cantitle"=>{"1"=>{"title_opt"=>"CEO"},
"2"=>{"title_opt"=>"COO"},
> > "3"=>{"title_opt"=>"CIO"}},
> >
>
>
> --
> Posted via http://www.ruby-forum.com/.
>
> >
>
--
http://en.wikipedia.org/wiki/Dark_ambient
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On Oct 25, 2006, at 5:10 PM, Dark Ambient wrote:> Unsure and no luck so far on how to save the params from 3 text > fields all for the same object / method. I guess this would be an > array of arrays ? > > {"cantitle"=>{"1"=>{"title_opt"=>"CEO"}, "2"=>{"title_opt"=>"COO"}, > "3"=>{"title_opt"=>"CIO"}}, > > StuartHey Stuart- You can grab the params like this: # Assuming you want to make new Cantitle objects params[''cantitle''].each {|k, v| Cantitle.create(v) } # Assuming you want to update pre existing Cantitle objects params[''cantitle''].each {|k, v| Cantitle.find(k).update_attributes(v) } Cheers- -- Ezra Zygmuntowicz -- Lead Rails Evangelist -- ez-NLltGlunAUd/unjJdyJNww@public.gmane.org -- Engine Yard, Serious Rails Hosting -- (866) 518-YARD (9273) --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 10/25/06, Ezra Zygmuntowicz <ezmobius-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > > > On Oct 25, 2006, at 5:10 PM, Dark Ambient wrote: > > > Unsure and no luck so far on how to save the params from 3 text > > fields all for the same object / method. I guess this would be an > > array of arrays ? > > > > {"cantitle"=>{"1"=>{"title_opt"=>"CEO"}, "2"=>{"title_opt"=>"COO"}, > > "3"=>{"title_opt"=>"CIO"}}, > > > > Stuart > > > Hey Stuart- > > You can grab the params like this: > > # Assuming you want to make new Cantitle objects > params[''cantitle''].each {|k, v| Cantitle.create(v) } > > # Assuming you want to update pre existing Cantitle objects > params[''cantitle''].each {|k, v| Cantitle.find(k).update_attributes(v) }Why does this work params[''cantitle''].each {|k, v| Cantitle.create(v) } Yet this doesn''t work: params[''cantitle''].each {|k, v| cantitle.candidate_id = @candidate_id cantitle.user_id = current_user.id Cantitle.create(v) } the candidate_id and user_id need to be inserted with each record. I get a "undefined local variable or method `cantitle''" Stuart -- http://en.wikipedia.org/wiki/Dark_ambient --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 10/26/06, Dark Ambient <sambient-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > On 10/25/06, Ezra Zygmuntowicz <ezmobius-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > > > > > > On Oct 25, 2006, at 5:10 PM, Dark Ambient wrote: > > > > > Unsure and no luck so far on how to save the params from 3 text > > > fields all for the same object / method. I guess this would be an > > > array of arrays ? > > > > > > {"cantitle"=>{"1"=>{"title_opt"=>"CEO"}, "2"=>{"title_opt"=>"COO"}, > > > "3"=>{"title_opt"=>"CIO"}}, > > > > > > Stuart > > > > > > Hey Stuart- > > > > You can grab the params like this: > > > > # Assuming you want to make new Cantitle objects > > params[''cantitle''].each {|k, v| Cantitle.create(v) } > > > > # Assuming you want to update pre existing Cantitle objects > > params[''cantitle''].each {|k, v| Cantitle.find(k).update_attributes(v) } > > > > Why does this work params[''cantitle''].each {|k, v| Cantitle.create(v) } > > Yet this doesn''t work: > > params[''cantitle''].each {|k, v| > cantitle.candidate_id = @candidate_id > cantitle.user_id = current_user.id > Cantitle.create(v) } > > the candidate_id and user_id need to be inserted with each record. > I get a "undefined local variable or method `cantitle''" >Doing this: a = params[''cantitle''] a.each {|k, v| cantitle = Cantitle.new cantitle.candidate_id = @candidate_id cantitle.user_id = current_user.id cantitle.title_opt = v cantitle.save } I am now getting this in the title_opt field --- !map:HashWithIndifferentAccess title_opt: COO Close I guess :) Stuart --> http://en.wikipedia.org/wiki/Dark_ambient >-- http://en.wikipedia.org/wiki/Dark_ambient --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Not 100% sure what you really need, bu i think you mixed it up,
as you try to manipulate a "cantitle" object before you have one,
and you should use build, not create.
for each params set in params[:cantitle]:
1) build a cantitle object with the parameters (v)
2) add the @candidate_id
3) add the current_user.id
4) save the cantitle object
params[:cantitle].each do |k, v|
cantitle = Cantitle.build(v)
cantitle.candidate_id = @candidate_id
cantitle.user_id = current_user.id
cantitle.save
end
I assume @candidate_id is initiated and filled before that pice of
code...
Question for Ezra: i relied on your example for this, but im a bit
confused:
when i do :
params[:cantitle].each do |k, v|
is k = ''title_opt'' and v = k''s value ?
and wouldnt create() or build() require the key => value pair instead
of just v (the value) ?
or am i mixing something up here ?
I still have to learn much about ruby, i know more about the logic in
rails than about the
actual language and syntax beneath :-P
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ah, figured it out myself.
@Dark Ambient:
|k,v| means:
k is the key of the array (meaning: the number of the arrays entry)
v is the hash in each array entry { title_opt => someValue }
so it would be:
cantitle.title_opt = v[:title_opt]
.... i think ... :D
or use my way with Cantiltle.build(v)
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On 10/26/06, Thorsten L <duplexxx-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:> > > ah, figured it out myself. > > @Dark Ambient: > > |k,v| means: > k is the key of the array (meaning: the number of the arrays entry) > v is the hash in each array entry { title_opt => someValue }Okay, at first I thought I had a multidimensional array. Which I guess it still is ? But each array is a hash ? I''m not looking for any explanation, I''m sure it will eventually sink in. I think I''m more used to seeing the v stand for value. so it would be:> > cantitle.title_opt = v[:title_opt] > > .... i think ... :DGood thinking :) , it worked. or use my way with Cantiltle.build(v) I''ll keep this one in my pocket for now . Thank you for the help. Stuart --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
well the hash <-> array stuff confused and still confuses me from time
to time...
if you ever had experience with another scripting language, this
analogy might help:
arrays with number keys are also arrays in ruby.
arrays with named keys are known hashes in ruby, and they have no
specific order, like numbered arrays have.
params[:cantile] contains an array (or a hash if the numbers are given
as strings)...
{"1"=>somevalue1, "2"=>somevalue2,
"3"=>somevalue3},
so params[:cantitle].each do |k,v| gives you each object in that
arrays/hash
with k = the number and v = somevalue
but each v contains a hash: {:title_opt => value } (a named key and a
correspnind value are a hash)
dont know if i used the right vocabulary in every place but i think
you might get the idea ...
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On 10/26/06, Thorsten L <duplexxx-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote:> > > well the hash <-> array stuff confused and still confuses me from time > to time... > if you ever had experience with another scripting language, this > analogy might help: > arrays with number keys are also arrays in ruby. > arrays with named keys are known hashes in ruby, and they have no > specific order, like numbered arrays have.I think arrays with named keys are hashes in other languages as well. If I remember, PHP was the same. params[:cantile] contains an array (or a hash if the numbers are given> as strings)... > {"1"=>somevalue1, "2"=>somevalue2, "3"=>somevalue3}, > > so params[:cantitle].each do |k,v| gives you each object in that > arrays/hash > with k = the number and v = somevalue > > but each v contains a hash: {:title_opt => value } (a named key and a > correspnind value are a hash) > > dont know if i used the right vocabulary in every place but i think > you might get the idea ...Yes, I do get the idea. So now :) As my next challenge. I have this situation - where I''m collecting a city and state, I believe (haven''t gotten my hands dirty yet) where the params are coming through as such "canlocation"=>{"1"=>{"city"=>"Phoenix", "state_id"=>"3"}, "2"=>{"city"=>"Boston", "state_id"=>"19"}, "3"=>{"city"=>"Seattle", "state_id"=>"47"}}} Actually I was pretty surprised at the nice neat way they get send. I mean since they are both part of the same model, Rails seems to join them together nicely in the array or hashes :) Current thinking is state_id gets nested inside of the city loop ? Stuart --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 10/26/06, Dark Ambient <sambient-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > On 10/26/06, Thorsten L <duplexxx-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org> wrote: > > > > > > well the hash <-> array stuff confused and still confuses me from time > > to time... > > if you ever had experience with another scripting language, this > > analogy might help: > > arrays with number keys are also arrays in ruby. > > arrays with named keys are known hashes in ruby, and they have no > > specific order, like numbered arrays have. > > > I think arrays with named keys are hashes in other languages as well. If > I remember, PHP was the same. > > params[:cantile] contains an array (or a hash if the numbers are given > > as strings)... > > {"1"=>somevalue1, "2"=>somevalue2, "3"=>somevalue3}, > > > > so params[:cantitle].each do |k,v| gives you each object in that > > arrays/hash > > with k = the number and v = somevalue > > > > but each v contains a hash: {:title_opt => value } (a named key and a > > correspnind value are a hash) > > > > dont know if i used the right vocabulary in every place but i think > > you might get the idea ... > > > Yes, I do get the idea. > > So now :) > > As my next challenge. > I have this situation - where I''m collecting a city and state, > I believe (haven''t gotten my hands dirty yet) > where the params are coming through as such > > "canlocation"=>{"1"=>{"city"=>"Phoenix", "state_id"=>"3"}, > "2"=>{"city"=>"Boston", "state_id"=>"19"}, "3"=>{"city"=>"Seattle", > "state_id"=>"47"}}} > > Actually I was pretty surprised at the nice neat way they get send. I > mean since they are both part of the same model, Rails seems to join them > together nicely in the array or hashes :) > > Current thinking is state_id gets nested inside of the city loop ? > > Stuart >Nope no nesting needed, very nice - b = params[''canlocation''] b.each {|k, v| canlocation = Canlocation.new canlocation.candidate_id = @candidate_id canlocation.user_id = current_user.id canlocation.city = v[:city] canlocation.state_id = v[:state_id] canlocation.save } Works well. Stuart -- http://en.wikipedia.org/wiki/Dark_ambient --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
Hello Thorsten,> well the hash <-> array stuff confused and still confuses me > from time to time... > if you ever had experience with another scripting language, this > analogy might help: > arrays with number keys are also arrays in ruby. > arrays with named keys are known hashes in ruby, and they > have no specific order, like numbered arrays have.If by named keys, you mean strings or symbols then your definition is not correct. From the doc : A +Hash+ is a collection of key-value pairs. It is similar to an +Array+, except that indexing is done via arbitrary keys of any object type, not an integer index. The order in which you traverse a hash by either key or value may seem arbitrary, and will generally not be in the insertion order. You've got key-value pairs. But for key you can use any object, and the same for value. $ irb irb(main):001:0> a=%w(un deux) => ["un", "deux"] irb(main):002:0> b={ a => 1, 'foo' => 4, :bar => 6 } => {:bar=>6, ["un", "deux"]=>1, "foo"=>4} irb(main):003:0> b[a] => 1 As you can see, I've used an array as a key so b[a] works. With Rails, we manipulate often Hash-like objects called HashWithIndifferentAccess objects. The difference is that string key and symbol key give access to the same value, e.g. options['foo'] is the same as options[:foo] Rails also has an OrderedHash class, that is, key-value pairs are ordered. -- Jean-François. -- À la renverse. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 10/26/06, Jean-François <jf.web3-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > Hello Thorsten, > > > well the hash <-> array stuff confused and still confuses me > > from time to time... > > if you ever had experience with another scripting language, this > > analogy might help: > > arrays with number keys are also arrays in ruby. > > arrays with named keys are known hashes in ruby, and they > > have no specific order, like numbered arrays have. > > If by named keys, you mean strings or symbols then your definition > is not correct. > > From the doc : > > A +Hash+ is a collection of key-value pairs. It is similar to an > +Array+, except that indexing is done via arbitrary keys of any > object type, not an integer index. The order in which you traverse > a hash by either key or value may seem arbitrary, and will > generally not be in the insertion order. > > You''ve got key-value pairs. But for key you can use any object, > and the same for value. > > $ irb > irb(main):001:0> a=%w(un deux) > => ["un", "deux"] > irb(main):002:0> b={ a => 1, ''foo'' => 4, :bar => 6 } > => {:bar=>6, ["un", "deux"]=>1, "foo"=>4} > irb(main):003:0> b[a] > => 1 > > As you can see, I''ve used an array as a key so b[a] works. > > With Rails, we manipulate often Hash-like objects called > HashWithIndifferentAccess objects. The difference is that > string key and symbol key give access to the same value, e.g. > options[''foo''] is the same as options[:foo] > > Rails also has an OrderedHash class, that is, key-value pairs > are ordered. > > -- Jean-François.So what I have here is an array or an array of arrays (below) ? Or did I thoroughly miss your point? . "canlocation"=>{"1"=>{"city"=>"Phoenix", "state_id"=>"3"}, "2"=>{"city"=>"Boston", "state_id"=>"19"}, "3"=>{"city"=>"Seattle", "state_id"=>"47"}}} Also, I notice some odd behaviour in that if no values are created, this array of arrays still exists. Example: If I have a field set up like such: <td><select name=canterm[term_id][] size="6" multiple="multiple"> <%= options_from_collection_for_select @terms, :id, :name %></select> Which is still multiple values but in one array, if nothing is selected there are no params. Yet with this element: <td><%= text_field(:canlocation, :city, "index" => 1)%></td> <td><%= collection_select(:canlocation, :state_id, @states, :id, :name, { :prompt => true },{"index" => 1})%></td> this will still show up: "canlocation"=>{"1"=>{"city"=> , "state_id"=>}, This make sense ? If so, how does one test for an empty array in the controller ? empty?, blank?, and nil seem to have no effect ? Stuart --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---
On 10/26/06, Dark Ambient <sambient-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:> > On 10/26/06, Jean-François <jf.web3-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote: > > > Hello Thorsten, > > > > > well the hash <-> array stuff confused and still confuses me > > > from time to time... > > > if you ever had experience with another scripting language, this > > > analogy might help: > > > arrays with number keys are also arrays in ruby. > > > arrays with named keys are known hashes in ruby, and they > > > have no specific order, like numbered arrays have. > > > > If by named keys, you mean strings or symbols then your definition > > is not correct. > > > > From the doc : > > > > A +Hash+ is a collection of key-value pairs. It is similar to an > > +Array+, except that indexing is done via arbitrary keys of any > > object type, not an integer index. The order in which you traverse > > a hash by either key or value may seem arbitrary, and will > > generally not be in the insertion order. > > > > You''ve got key-value pairs. But for key you can use any object, > > and the same for value. > > > > $ irb > > irb(main):001:0> a=%w(un deux) > > => ["un", "deux"] > > irb(main):002:0> b={ a => 1, ''foo'' => 4, :bar => 6 } > > => {:bar=>6, ["un", "deux"]=>1, "foo"=>4} > > irb(main):003:0> b[a] > > => 1 > > > > As you can see, I''ve used an array as a key so b[a] works. > > > > With Rails, we manipulate often Hash-like objects called > > HashWithIndifferentAccess objects. The difference is that > > string key and symbol key give access to the same value, e.g. > > options[''foo''] is the same as options[:foo] > > > > Rails also has an OrderedHash class, that is, key-value pairs > > are ordered. > > > > -- Jean-François. > > > > So what I have here is an array or an array of arrays (below) ? Or did I > thoroughly miss your point? > . > "canlocation"=>{"1"=>{"city"=>"Phoenix", "state_id"=>"3"}, > "2"=>{"city"=>"Boston", "state_id"=>"19"}, "3"=>{"city"=>"Seattle", > "state_id"=>"47"}}} > > Also, I notice some odd behaviour in that if no values are created, this > array of arrays still exists. > Example: > If I have a field set up like such: > > <td><select name=canterm[term_id][] size="6" multiple="multiple"> > <%= options_from_collection_for_select @terms, :id, :name %></select> > > Which is still multiple values but in one array, if nothing is selected > there are no params. > > Yet with this element: > <td><%= text_field(:canlocation, :city, "index" => 1)%></td> > <td><%= collection_select(:canlocation, :state_id, @states, :id, :name, { > :prompt => true },{"index" => 1})%></td> > > this will still show up: > > "canlocation"=>{"1"=>{"city"=> , "state_id"=>}, > > This make sense ? > If so, how does one test for an empty array in the controller ? > empty?, blank?, and nil seem to have no effect ? > > Stuart >Worked it out - a = params[''cantitle''] a.each {|k, v| cantitle = Cantitle.new cantitle.candidate_id = @candidate_id cantitle.user_id = current_user.id unless v[:title_opt].blank? # checks here for no value. cantitle.title_opt = v[:title_opt] cantitle.save end } Stuart -- http://en.wikipedia.org/wiki/Dark_ambient --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe@googlegroups.com For more options, visit this group at http://groups.google.com/group/rubyonrails-talk -~----------~----~----~----~------~----~------~--~---