How to implement a conditional render for a field in a form ?

[ProfessionalIT]

Hi,

   I have a form like this:

_form = form.Form(

            form.Hidden('id'),

            form.Hidden('operation'),

            form.Textbox('titulo', form.notnull, size="60", maxlength="250", title="Titulo/Nome da Página.", description='Titulo:', style="display: block;"),

            form.Textbox('slug', size="60", maxlength="250", title="URL da Página.", readonly="readonly", class_="readonly", description='URL da Página:'),

            form.Textbox('descricao_completa', form.notnull, size="60", maxlength="250", title="Descrição Completa da Página.", description='Descrição Completa:'),

            form.Textbox('palavras_chaves', form.notnull, size="60", maxlength="250", title="Palavras Chaves da Página separadas por vírgula.", description='Palavras Chaves:'),

            form.Dropdown('permite_comentario', [('S', 'Sim'), ('N', 'Não')], title="Permite Comentários na Página ?", description='Permite Comentário:'),

            form.Dropdown('draft', [('S', 'Sim'), ('N', 'Não')], title="Rascunho ?", description='Rascunho:'),

            form.Textarea('conteudo', form.notnull, cols="70", rows="25", title="Conteúdo da Página.", description='Conteúdo da Página:'),

            form.Button('cancelar_button', html="Cancelar", type="submit", onclick="javascript:history.back();", style="display: table;"),

            form.Button('salvar_button', html="Salvar", type="submit", onclick="return setMode('save');", style="display: table;"),

            form.Button('salvar_sair_button', html="Salvar e Sair", type="submit", onclick="return setMode('save');", style="display: table;"),

            form.Button('excluir_button', html="Excluir", type="submit", onclick="return setMode('delete');", style="display: table;"),

            form.Button('visualizar_button', html="Visualizar", type="button", onclick="return preview('Pagina');", style="display: table;"),

            form.Button('publicar_button', html="Publicar", type="submit", onclick="return setMode('publish');", style="display: table;")

        )

        return _form

And  I want that de visualizar_button be rendered only if the draft field value is equals 'S'. How to implement this ?

thank's 

Leandro.

[Tomas Schertel]

Hi Leandro,

Maybe you should use javascript to achieve this, because you need to decide to render a field or not after "draft" is rendered.

[Marios Zindilis]

Since the value of 'draft' and the visibility of 'visualizar_button' change in the browser and not on the server, you should search on how to do this with JavaScript.

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Marios Zindilis

[ProfessionalIT]

SOLVED, with javascript/jquery.

Thanks friends.

Leandro.