I’m having trouble selecting a default value in my collection select.
here is my code:
f.collection_select(:item_type_id, @item_types, :id, :name)
i want to select item_type.name = “N/A” for the default.
any ideas?
I’m having trouble selecting a default value in my collection select.
here is my code:
f.collection_select(:item_type_id, @item_types, :id, :name)
i want to select item_type.name = “N/A” for the default.
any ideas?
f.collection_select(:item_type_id, @item_types, :id, :name)
i want to select item_type.name = “N/A” for the default.
The f…:item_type_id pattern will set the collection to whatever the
target
of the form_for has.
I think you don’t want item_type_id to come back nil if the user selects
nothing. That calls for a :prompt => ‘N/A’ around the end
Warning: If the form_for points to an item with a filled-out
item_type_id,
even if @item_types has no such item, you won’t get a prompt.
Design Warning: Working with nils is evil. I would use a migration to
add a
real ‘N/A’ to the item types, and I would park all unassigned
item_type_id’s
at it. That allows users to easily reset an item type back to ‘N/A’
without
you futzing around extra to provide a prompt. And without excessive nil
checks in all your item type code.
The f…:item_type_id pattern will set the collection to whatever the
target of the form_for has.
Geez - before my aphasia derails anyone…
The f…:item_type_id pattern will select the option matching whatever
the
target of the form_for has.
I think you don’t want item_type_id to come back nil if the user selects
nothing. That calls for a :prompt => ‘N/A’ around the end
I think you want item_type_id to come back nil if the user selects
nothing.
That calls for a :prompt => ‘N/A’ around the end of the
collection_select.
Remaining post might be okay…
Phlip wrote:
f.collection_select(:item_type_id, @item_types, :id, :name)
i want to select item_type.name = “N/A” for the default.
The f…:item_type_id pattern will set the collection to whatever the
target
of the form_for has.I think you don’t want item_type_id to come back nil if the user selects
nothing. That calls for a :prompt => ‘N/A’ around the endWarning: If the form_for points to an item with a filled-out
item_type_id,
even if @item_types has no such item, you won’t get a prompt.Design Warning: Working with nils is evil. I would use a migration to
add a
real ‘N/A’ to the item types, and I would park all unassigned
item_type_id’s
at it. That allows users to easily reset an item type back to ‘N/A’
without
you futzing around extra to provide a prompt. And without excessive nil
checks in all your item type code.
thanks for the reply! i just had to set
@item.item_type_id = “1”
in my new method in the controller. woohoo! i can finish coding now!
Scott K. wrote:
I’m having trouble selecting a default value in my collection select.
here is my code:
f.collection_select(:item_type_id, @item_types, :id, :name)
i want to select item_type.name = “N/A” for the default.
any ideas?
Use Like
f.collection_select(:item_type_id, @item_types, :id,
:name,:include_blank=>“N/A”)
it will pass null value to controller and in front end page also “N/A”
will display
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