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Matthew Planchant

2006-Nov-16 09:59 UTC

Updating two divs?

I have a form where I can edit details about a person. This includes 
adding addresses which can be used to contact the person. A person can 
have any number of addresses.

On the edit person screen I have a list of the addresses which are a 
associated with that person. Clicking on ''Add address'' causes
a new form
to appear (uses link_to_remote) this form is completed and the results 
are written to the database, the list of addresses on the page is 
updated by re-rendering the partial.

The problem that I am having is that I''m using the :update to add the 
new address to the list of addresses but I also need to remove the form 
which appeared and replace it once again with the ''Add address"
link.
How can I do this? Can I update 2 divs?

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Fred

2006-Nov-16 10:25 UTC

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Re: Updating two divs?

This is what RJS templates are for. If you google around for that you 
should find what you need

Fred

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Matthew Planchant

2006-Nov-16 10:27 UTC

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Re: Updating two divs?

I''ve tried to do this using RJS. IN my .rjs file I have:

==page.replace_html ''address-list'' , :partial =>
''address_list''
page.replace_html ''address-form'' , :partial =>
''address_add''
==
The second part works. Replacing the complete form with the ''Add 
address'' link. However, the first part generates loads of random markup
including stuff like the following in amongst the table displaying the 
addresses:

==\n \n  \n  11 A street town city \n   \n   \n
\n \n \n  \n  add \n  post \n   \n  Delete \n  Edit \n
\n \n  \n  1 \n  2 \n   \n  Delete \n  Edit \n
\n \n  \n  address \n  postcode \n   \n  Delete \n  Edit \n
\n \n  \n  fg \n  fg \n   \n  Delete \n  Edit \n
\n \n  \n  new \n  new \n   \n  Delete \n  Edit \n
\n \n  \n  here \n  here \n   \n  Delete \n  Edit \n
\n \n  \n  fe \n  fi \n   \n  Delete \n  Edit \n
\n \n  \n  dfd \n  dfd \n   \n  Delete \n  Edit \n
\n \n  \n  99 \n  999 \n   \n  Delete \n  Edit \n
\n \n
==
Note: the use of ''list'' when describing how the addresses are
displayed
is a little misleading. The addresses are actually displayed in a table.


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Maxim Kulkin

2006-Nov-16 10:37 UTC

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Re: Updating two divs?

On 16 November 2006 12:59, Matthew Planchant wrote:> I have a form where I can edit details about a person. This includes
> adding addresses which can be used to contact the person. A person can
> have any number of addresses.
>
> On the edit person screen I have a list of the addresses which are a
> associated with that person. Clicking on ''Add address''
causes a new form
> to appear (uses link_to_remote) this form is completed and the results
> are written to the database, the list of addresses on the page is
> updated by re-rendering the partial.
>
> The problem that I am having is that I''m using the :update to add
the
> new address to the list of addresses but I also need to remove the form
> which appeared and replace it once again with the ''Add
address" link.
> How can I do this? Can I update 2 divs?Use RJS to do that:
class PersonController < ApplicationController
  def create_address
    // save address to DB

    render :update do |page|
      page.replace ''addresses-list'', :partial =>
''address'', :collection =>
@addresses
      page.remove ''address-form''
    end
  end
end

or in app/views/person/create_address.rjs :

page.replace ''addresses-list'', :partial =>
''address'', :collection =>
@addresses
page.remove ''address-form''

In later case, write this to controller''s action:

class PersonController < ApplicationController
  def create_address
    // save address to DB

    respond_to do |format|
      format.js
    end
  end
end

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Matthew Planchant

2006-Nov-16 10:52 UTC

head link

Re: Updating two divs?

What is wrong with:

class PersonController < ApplicationController
  def add_address
    @person = Person.find(params[:id])
    @person.person_addresses.create(:address => 
Address.create(params[:address]))
  end
end

and in app/views/person/add_address.rjs :

page.replace_html ''address-table'' , :partial =>
''address_list''
page.replace_html ''address-form'' , :partial =>
''address_add''




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Thorsten L

2006-Nov-16 11:10 UTC

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Re: Updating two divs?

dont give a :update value.

instread, render a RJS Template in your action...

def add_address
  ... add the address to the DB etc. ...
  #at the end, the action ill automatically render the RJS template
end

in your controllers views directory you would have a file called
add_address.rjs:

page.replace_html :div-to-update, :partial => "_address-list"
page.hide :ID-of-form-to-hide

see for more info:

->
http://api.rubyonrails.org/classes/ActionView/Helpers/PrototypeHelper/JavaScriptGenerator/GeneratorMethods.html

-> http://api.rubyonrails.org/classes/ActionView/Base.html ...scroll
down to "JavascriptGenerator"

Tutorial:
http://www.codyfauser.com/articles/2005/11/20/rails-rjs-templates


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Matthew Planchant

2006-Nov-16 11:20 UTC

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Re: Updating two divs?

Thorsten L wrote:> dont give a :update value.
> 
> instread, render a RJS Template in your action...
> 
> def add_address
>   ... add the address to the DB etc. ...
>   #at the end, the action ill automatically render the RJS template
> end
> 
> in your controllers views directory you would have a file called
> add_address.rjs:
> 
> page.replace_html :div-to-update, :partial => "_address-list"
> page.hide :ID-of-form-to-hide
This is what I''ve done (see above). But I''m getting garbled
mark up when
the JavaScript attempts to render a table:

==try { Element.update("address-table", "\n  \n  Address \n 
Postcode \n
Preferred \n
\n \n  \n  11 street town city \n  postcode \n   \n
\n \n \n  \n  1 \n  2 \n   \n  Delete \n  Edit \n
\n \n  \n  address \n  postcode \n   \n  Delete \n  Edit \n
\n \n  \n  street \n  town \n   \n  Delete \n  Edit \n
\n \n  \n  street \n  town \n   \n  Delete \n  Edit \n
\n \n  \n  street \n  town \n   \n  Delete \n  Edit \n
\n \n  \n  street \n  town \n   \n  Delete \n  Edit \n
\n \n  \street \n  999 \n   \n  Delete \n  Edit \n
\n \n  \n  street \n  town \n   \n  Delete \n  Edit \n
\n \n  \n  street \n  town \n   \n  Delete \n  Edit \n
\n \n  \n  street \n  town \n   \n
==
Is there a problem with rendering tables this way?

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Matthew Planchant

2006-Nov-16 11:44 UTC

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Re: Updating two divs?

When I just have the following in the form (i.e. should replace the 
completed for with a ''Add address'' link):

==page.replace_html ''address-form'' , :partial =>
''address_add''
==
Then I get the following in the page:

==try { Element.update("address-form", "Add address"); }
catch (e) {
alert(''RJS error:\n\n'' + e.toString()); 
alert(''Element.update(\"address-form\", \"Add
address\");''); throw e }
Add address
==
I haven''t got this by viewing the generated source. This is visible on 
the page. The ''Add address'' at the bottom is the correct link
which
should be being created.

Does anyone have any idea what''s going on here?

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Ivor

2006-Nov-16 11:52 UTC

head link

cobra_vs_mongoose integer to string error

Hi

I am getting the XML from an external source via HTTPService post.
I am using CobraVsMongoose (CVM) to do a xml - hash conversion. One of 
the fields in the hash is "Task_Number", which is the id of the AR 
object that I want to retrive.

Here is an example of the object that CVM returns.
{"tasks"=>{"task"=>{"Task_Number"=>{"$"=>"3"},
"Task_Name"=>{"$"=>"task_three"},
"Priority_Rank"=>{"$"=>"55"}}}}

I have this code

    xml_string = params[:my_tasks]
    @my_tasks = CobraVsMongoose.xml_to_hash(xml_string)


    @my_tasks["tasks"]["task"].each do |hashed_task|
      @task =
Task.find(hashed_task["Task_Number"]["$"].to_i)
      @task.priority =
hashed_task["Priority_Rank"]["$"].to_f
      @task.save
    end

which works perfectly when I have many tasks, however, when I am sending 
over only one task i get this error in the development.log
            TypeError (can''t convert String into Integer):

I am pretty sure that "3".to_i should give me the integer 3. also,
since
the code runs smoothly for multiple tasks in the same XML document, I am 
baffled.

Thanks for the help
Ivor

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Maxim Kulkin

2006-Nov-16 11:53 UTC

head link

Re: Updating two divs?

On 16 November 2006 14:44, Matthew Planchant wrote:> When I just have the following in the form (i.e. should replace the
> completed for with a ''Add address'' link):
>
> ==> page.replace_html ''address-form'' , :partial =>
''address_add''
> ==>
> Then I get the following in the page:
>
> ==> try { Element.update("address-form", "Add
address"); } catch (e) {
> alert(''RJS error:\n\n'' + e.toString());
> alert(''Element.update(\"address-form\", \"Add
address\");''); throw e }
> Add address
> ==>
> I haven''t got this by viewing the generated source. This is
visible on
> the page. The ''Add address'' at the bottom is the correct
link which
> should be being created.
>
> Does anyone have any idea what''s going on here?I believe, when you use link_to_remote with :update option, it expects HTML 
back (not javascript). Try removing :update option from link_to_remote.

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Matthew Planchant

2006-Nov-16 12:04 UTC

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Re: Updating two divs?

Maxim Kulkin wrote:
> I believe, when you use link_to_remote with :update option, it expects 
> HTML back (not javascript). Try removing :update option from
link_to_remote.
That works. Thank you.


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Ivor

2006-Nov-16 12:19 UTC

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Re: cobra_vs_mongoose integer to string error

Found the problem.

When there are multiple tasks, as in this case

{"tasks"=>{"task"=>[{"Task_Number"=>{"$"=>"2"},
"Task_Name"=>{"$"=>"task_two"},
"Priority_Rank"=>{"$"=>"10"}},
{"Task_Number"=>{"$"=>"8"},
"Task_Name"=>{"$"=>"task_eight"},
"Priority_Rank"=>{"$"=>"20"}},
{"Task_Number"=>{"$"=>"4"},
"Task_Name"=>{"$"=>"task_four"},
"Priority_Rank"=>{"$"=>"30"}},
{"Task_Number"=>{"$"=>"5"},
"Task_Name"=>{"$"=>"task_five"},
"Priority_Rank"=>{"$"=>"40"}},
{"Task_Number"=>{"$"=>"1"},
"Task_Name"=>{"$"=>"task_one"},
"Priority_Rank"=>{"$"=>"50"}},
{"Task_Number"=>{"$"=>"3"},
"Task_Name"=>{"$"=>"task_three"},
"Priority_Rank"=>{"$"=>"60"}},
{"Task_Number"=>{"$"=>"7"},
"Task_Name"=>{"$"=>"task_seven"},
"Priority_Rank"=>{"$"=>"70"}},
{"Task_Number"=>{"$"=>"6"},
"Task_Name"=>{"$"=>"task_six"},
"Priority_Rank"=>{"$"=>"80"}}]}}

@my_tasks["tasks"]["task"]  is an array of tasks, whereas in
the case of
the single task, it gets parsed into a hash. My hack to fix this now is 
to pass the same task twice if the number of tasks is only one, but this 
is obviously a ugly hack.
Can anyone suggest how to change the rails code so that the 
@my_tasks["tasks"]["task"] object looks the same, whether it
has 1 or
many elements?

Ivor

Ivor wrote:> Hi
>
> I am getting the XML from an external source via HTTPService post.
> I am using CobraVsMongoose (CVM) to do a xml - hash conversion. One of 
> the fields in the hash is "Task_Number", which is the id of the
AR
> object that I want to retrive.
>
> Here is an example of the object that CVM returns.
>
{"tasks"=>{"task"=>{"Task_Number"=>{"$"=>"3"},
> "Task_Name"=>{"$"=>"task_three"},
"Priority_Rank"=>{"$"=>"55"}}}}
>
> I have this code
>
>     xml_string = params[:my_tasks]
>     @my_tasks = CobraVsMongoose.xml_to_hash(xml_string)
>
>
>     @my_tasks["tasks"]["task"].each do |hashed_task|
>       @task =
Task.find(hashed_task["Task_Number"]["$"].to_i)
>       @task.priority =
hashed_task["Priority_Rank"]["$"].to_f
>       @task.save
>     end
>
> which works perfectly when I have many tasks, however, when I am sending 
> over only one task i get this error in the development.log
>             TypeError (can''t convert String into Integer):
>
> I am pretty sure that "3".to_i should give me the integer 3.
also, since
> the code runs smoothly for multiple tasks in the same XML document, I am 
> baffled.
>
> Thanks for the help
> Ivor
>
> >
>
>
>   
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Rails - Nov 2006 - Updating two divs?

Updating two divs?

Re: Updating two divs?

Re: Updating two divs?

Re: Updating two divs?

Re: Updating two divs?

Re: Updating two divs?

Re: Updating two divs?

Re: Updating two divs?

cobra_vs_mongoose integer to string error

Re: Updating two divs?

Re: Updating two divs?

Re: cobra_vs_mongoose integer to string error