Any suggestions on how to put a default value into a select method
eg. f.select :type_id, List.find(:all).collect {|p| [ p.name, p.id ]}
but if the :type_id is nil I want to be able to use the default value
from the List Model.
The :select option seems to override the method
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nigel.bris wrote:> Any suggestions on how to put a default value into a select method > > eg. f.select :type_id, List.find(:all).collect {|p| [ p.name, p.id ]} > > but if the :type_id is nil I want to be able to use the default value > from the List Model.Three ways: 1. Put the default as the default value in the database field. It will automatically be that value rather than nil. 2. Put in your controller: @object.type_id ||= List::DEFAULT_TYPE_ID 3. Put in your List.initialize method: self.type_id = DEFAULT_TYPE_ID -- We develop, watch us RoR, in numbers too big to ignore. --~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---
Great Ideas..... I probably should of given a bit more info.. List Model is used by multiple models and is a common place for list items (grouped by the model ListGroup) List model has a field called default (boolean) so the user can change the default option. The selection list lives in a helper because it is common to lots of views. I could do it in the controller, but this would require code each time, as this is in a helper, I want it to write it once. Any other suggestions? On Aug 10, 12:15 am, Mark Reginald James <m...-bzGI/hKkdgQnC9Muvcwxkw@public.gmane.org> wrote:> nigel.bris wrote: > > Any suggestions on how to put a default value into a select method > > > eg. f.select :type_id, List.find(:all).collect {|p| [ p.name, p.id ]} > > > but if the :type_id is nil I want to be able to use the default value > > from the List Model. > > Three ways: > > 1. Put the default as the default value in the database field. > It will automatically be that value rather than nil. > > 2. Put in your controller: > > @object.type_id ||= List::DEFAULT_TYPE_ID > > 3. Put in your List.initialize method: > > self.type_id = DEFAULT_TYPE_ID > > -- > We develop, watch us RoR, in numbers too big to ignore.--~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---
nigel.bris wrote:> Great Ideas..... > > I probably should of given a bit more info.. > List Model is used by multiple models and is a common place for list > items (grouped by the model ListGroup) > List model has a field called default (boolean) so the user can change > the default option. > The selection list lives in a helper because it is common to lots of > views. > > I could do it in the controller, but this would require code each > time, as this is in a helper, I want it to write it once. Any other > suggestions?I''m not understanding how the boolean default field is used, but another way would be to override the AR accessor method of type_id: class List def type_id self[:type_id] || default_type end end -- We develop, watch us RoR, in numbers too big to ignore. --~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---
HI Mark, Thanks for you help here..... The default field is in the List model. The List model is open to the client so they can add different options eg. States so if a client than adds a customer card which has their address, the selection list showing the states should defualt to the state marked as defualt in List. I have created a helper to "my_selection" which is sent the List group (eg states group) which means the list will only have states. To keep it dry, I want the "my_selection" to see the item is nil and select the default item. On Aug 11, 1:46 am, Mark Reginald James <m...-bzGI/hKkdgQnC9Muvcwxkw@public.gmane.org> wrote:> nigel.bris wrote: > > Great Ideas..... > > > I probably should of given a bit more info.. > > List Model is used by multiple models and is a common place for list > > items (grouped by the model ListGroup) > > List model has a field called default (boolean) so the user can change > > the default option. > > The selection list lives in a helper because it is common to lots of > > views. > > > I could do it in the controller, but this would require code each > > time, as this is in a helper, I want it to write it once. Any other > > suggestions? > > I''m not understanding how the boolean default field is used, but > another way would be to override the AR accessor method of type_id: > > class List > def type_id > self[:type_id] || default_type > end > end > > -- > We develop, watch us RoR, in numbers too big to ignore.--~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---
Hi Mark,
Thought you might cast some light on these:
1. How can I set a default value in a collection_select? To be specific,
I have a class ''Platform'', and I want to set the platform_code
(a field
of Platform) to be ''ORA'' (which exists in the Platform table).
I tried many variations of the following code in my view, but in vain:
<% @selected = ''ORA'' %>
<%= collection_select "sac_table_platform",
"platform_code",
Platform.find(:all, :order => "platform_code"),
:platform_code, :platform_code, { :selected => @selected } %>
2. How can I build my own list of collection_select, e.g., a list of
three people, say, to show [Adam, Bob, Charley] on the collection_select
for the corresponding values [''A'', ''B'',
''C''] in a table (which already
exists), and use it in my view?
Thanks,
Arif
Mark Reginald James wrote:> nigel.bris wrote:
>> I could do it in the controller, but this would require code each
>> time, as this is in a helper, I want it to write it once. Any other
>> suggestions?
>
> I''m not understanding how the boolean default field is used, but
> another way would be to override the AR accessor method of type_id:
>
> class List
> def type_id
> self[:type_id] || default_type
> end
> end
>
> --
> We develop, watch us RoR, in numbers too big to ignore.
--
Posted via http://www.ruby-forum.com/.
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Niaz Arifin wrote:> Hi Mark, > Thought you might cast some light on these: > > 1. How can I set a default value in a collection_select? To be specific, > I have a class ''Platform'', and I want to set the platform_code (a field > of Platform) to be ''ORA'' (which exists in the Platform table). > I tried many variations of the following code in my view, but in vain: > <% @selected = ''ORA'' %> > <%= collection_select "sac_table_platform", "platform_code", > Platform.find(:all, :order => "platform_code"), > :platform_code, :platform_code, { :selected => @selected } %>Arif, just set @sac_table_platform.platform_code = ''ORA'', either in your controller or in Platform.initialize> 2. How can I build my own list of collection_select, e.g., a list of > three people, say, to show [Adam, Bob, Charley] on the collection_select > for the corresponding values [''A'', ''B'', ''C''] in a table (which already > exists), and use it in my view?Just use an ordinary select having options parameter [[''Adam'',''A''], [''Bob'',''B''], [''Charley'',''C'']] -- We develop, watch us RoR, in numbers too big to ignore. --~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---
Hi Mark,
Thanks a lot... setting @sac_table_platform.platform_code =
''ORA'' worked
for the default case, but it created a new problem for me: now when I
tried to specifically select a value (eg, ''NSK'') from the
collection_select, it didn''t. Instead, it always selected
''ORA''. I tried
to include a blank in the list, and put an if-condition in the
controller, but now it gets a null for ''platform_code''.
Could you please tell me what I am doing wrong?
The relevant snippets are here:
In the controller:
def new
@create_date = @last_modify_date = getdate()
end
def create
...
params[:sac_table_platform][:table_id] =
params[:sac_table_config][:table_id]
params[:sac_table_platform][:table_config_id] =
params[:sac_table_config][:table_config_id]
@sac_table_platform =
SacTablePlatform.new(params[:sac_table_platform])
if params[:sac_table_platform][:platform_code].nil?
@sac_table_platform.platform_code = ''ORA''
end
if @sac_table_config.save and @sac_table_platform.save
flash[:message] = { :title => ''Information'', :msg =>
''SAC Table
Config and SAC Table Platform are successfully created.'' }
redirect_to :action => ''list''
else
render :action => ''new''
end
end
---------------------------------
In the ''new.rhtml'' view:
<%= collection_select ("sac_table_platform",
"platform_code",
Platform.find(:all, :order => "platform_code"),
:platform_code, :platform_code, :include_blank => true ) %>
---------------------------------
Error I got:
OCIError: ORA-01400: cannot insert NULL into
("SAC_CFG"."SAC_TABLE_PLATFORM"."PLATFORM_CODE"):
INSERT INTO
SAC_Table_Platform (table_name, table_id, table_config_id,
platform_code) VALUES ('''', 6140, 1, '''')
Parameters: {"name"=>"add_form",
"commit"=>"Create",
"sac_table_platform"=>{"platform_code"=>"",
"table_id"=>"6140",
"table_name"=>"",
"table_config_id"=>[#<SacTableConfig:0x4b16260
@attributes={"nextval"=>59.0}>]},
"sac_table_config"=>{"last_modify_date"=>#<Date:
4908771/2, 0, 2299161>,
"table_id"=>"6140",
"create_date"=>#<Date: 4908771/2, 0, 2299161>,
"change_description"=>"aswq",
"table_config_id"=>[#<SacTableConfig:0x4b16260
@attributes={"nextval"=>59.0}>]}}
Thanks a lot again.
Mark Reginald James wrote:> Niaz Arifin wrote:
>> :platform_code, :platform_code, { :selected => @selected } %>
> Arif, just set @sac_table_platform.platform_code = ''ORA'',
either in
> your controller or in Platform.initialize
>
>> 2. How can I build my own list of collection_select, e.g., a list of
>> three people, say, to show [Adam, Bob, Charley] on the
collection_select
>> for the corresponding values [''A'',
''B'', ''C''] in a table (which already
>> exists), and use it in my view?
>
> Just use an ordinary select having options parameter
> [[''Adam'',''A''],
[''Bob'',''B''],
[''Charley'',''C'']]
>
> --
> We develop, watch us RoR, in numbers too big to ignore.
--
Posted via http://www.ruby-forum.com/.
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Niaz Arifin wrote:> Hi Mark, > Thanks a lot... setting @sac_table_platform.platform_code = ''ORA'' worked > for the default case, but it created a new problem for me: now when I > tried to specifically select a value (eg, ''NSK'') from the > collection_select, it didn''t. Instead, it always selected ''ORA''. I tried > to include a blank in the list, and put an if-condition in the > controller, but now it gets a null for ''platform_code''. > Could you please tell me what I am doing wrong?You only want to set @sac_table_platform.platform_code = ''ORA'' for a request.get?. So either (1), add this condition to an assignment in the controller, (2), set platform_code in SacTablePlatform.initialize using self.platform_code ||= ''ORA'' after calling super, or (3), add ''ORA'' as the default value for platform_code in your database table. -- We develop, watch us RoR, in numbers too big to ignore. --~--~---------~--~----~------------~-------~--~----~ 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?hl=en -~----------~----~----~----~------~----~------~--~---