Hello,
I've solved problem with following code:
<def tag="select-many-in-contract">
<select-many merge
options="&this_field_reflection.klass.all(:conditions
=>this.conditions).select {|x| can_view?(x) && (x.respond_to?(:global)
&& x.global?) ? true : x.contract.id == this_parent.contract.id }"/>
</def>
<extend tag="form" for="Device">
<old-form merge>
<field-list: fields="name, device_type, networked, buy_date,
warranty_date, supplier, info, groups, config_klasses, config_params,
network_interfaces">
<config-params-view:>
<input-many fields="name, value"/>
</config-params-view:>
<groups-view:>
<select-many-in-contract/>
</groups-view:>
</field-list:>
</old-form>
</extend>
groups is "has_many :through" association.
cheers
Wiadomość napisana w dniu 2010-02-13, o godz. 03:45, przez Mike S.:
Hi. I've been struggling with this as well. Another post suggested
using the the edit-page view to modify the select-many options, i.e.:
<select-many:devices options="&@this.contract.groups"/>
I've tried this structure outside of the <edit-page> tags in
"edit.dryml" and it does the proper filtering, but the changes are not
saved (assuming because it's outside of the <edit-page> tag).
However, I cannot get this to work _inside_ the <edit-page> tags, and
I don't know why. I also tried your method of modifying the
"application.dryml" file to include this change, but that failed also.
Modifying the <select-many> tag provides the desired filtering. I'm
just at a loss as to where/how to insert it to make it operate
correctly. I
---
Thx
Mike
On Feb 12, 12:10 pm, Grzegorz Marszałek <[email protected]> wrote:
Hello!
I'm trying to figure out, how to limit choices using select-many tag.
Code is like this:
class Contract < ActiveRecord::Base
...
has_many :devices
has_many :networks
has_many :groups
...
end
class Device < ActiveRecord::Base
...
belongs_to :contract
has_many :group_memberships
has_many :groups, :through => :group_memberships, :accessible =>
true
...
end
class GroupMembership < ActiveRecord::Base
...
belongs_to :group
belongs_to :device
...
end
class Group < ActiveRecord::Base
...
belongs_to :contract
has_many :group_memberships
has_many :devices, :through => :group_memberships, :accessible =>
true
end
and in application.dryml:
<extend tag="form" for="Group">
<old-form merge>
<field-list: fields="name, devices"/>
</old-form>
</extend>
Now - it's working fine, but each time I edit Group I get select
field
with ALL devices. My goal is to limit this list to devices belonging
to THE SAME contarct, as group. I've try something like this in Group
class:
has_many :devices, :through => :group_memberships, :accessible =>
true, :conditions => ['contract_id = ?', self.contract.id]
But it doesn't work as I though it would :(
Any ideas or clues? :)
---
Grzegorz Marsza³ek
[email protected]
---
Grzegorz Marszałek
[email protected]
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