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array81

Member

From: Italy

Registered: 2010-07-23

Posts: 411

Variable input parameters as array on MVCViewModel

On my application I have a HTML form with select2:

<select class="form-control select2" id="Contacts" name="Contacts" multiple="multiple" data-placeholder="" style="width: 100%;" value="{{Project.Contacts}}">
 {{#Contacts}}
 <option value="{{{ID}}}" {{{Status}}}>{{{Ident}}}</option>
 {{/Contacts}}
</select>

The user can select more option so when the user submit the form I have a URI like this:

...&Contacts=10&Contacts=11...

How can I handle this on MVCViewModel?
I should have an array on MVCViewModel so I have define a variant and try with:

with _Safe(Contacts)^ do
for j := 0 to Count-1 do
  begin
	if VariantToInt64(Values[j], ido) then
	  project.DynArray('Contacts').Add(ido);
  end;

but NOT work.

I have the feeling that the framework with considering this possibility.
In fact I think it use only last value of Contacts variable (11 on my example).

Am I wrong?

Note I have also try to use "name="Contacts[]" on form.

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,670

Website

Re: Variable input parameters as array on MVCViewModel

One variable name in URL = one variable value on server side...
This was as designed, and there is no such feature as "automatic array".

This "multiple" tag is indeed not handled yet.

array81

Member

From: Italy

Registered: 2010-07-23

Posts: 411

Re: Variable input parameters as array on MVCViewModel

This "multiple" tag is indeed not handled yet.

Is there an alternative way to handle multiple selection input of html form?
On my application should have many multiselection input.

Chaa

Member

Registered: 2011-03-26

Posts: 249

Re: Variable input parameters as array on MVCViewModel

You can access raw input parameters:

var
  i: Integer;  
  LContacts: TRawUTF8List;
begin
  with CurrentServiceContext.Request do
  begin
    for i := 0 to (Length(InputPairs) shr 1) - 1 do
    begin
      if InputPairs[i * 2] = 'Contacts' then
      begin
        LContacts.Add(InputPairs[i * 2 + 1]);
      end;
    end;
  end;
end;

array81

Member

From: Italy

Registered: 2010-07-23

Posts: 411

Re: Variable input parameters as array on MVCViewModel

You can access raw input parameters

Thanks for you suggestion.