I can generage select-tag easily and it works fine:

<%= select_tag "category",
options_from_collection_for_select(@categories, "id", "name"), :multiple
=> true, :include_blank => true %>

But how can I make "selected" some values?

@selected_categories = Array[1, 3]

So id 1 and 3 should be: <option selected="selected">

How can I do it?

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  • Frederick Cheung at Dec 15, 2011 at 3:08 pm

    On Dec 15, 2:39 pm, Fresh Mix wrote:
    I can generage select-tag easily and it works fine:

    <%= select_tag "category",
    options_from_collection_for_select(@categories, "id", "name"), :multiple
    => true, :include_blank => true %>

    But how can I make "selected" some values?

    @selected_categories = Array[1, 3]

    So id 1 and 3 should be: <option selected="selected">
    Start by reading the documentation for
    options_from_collection_for_select

    Fred

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postedDec 15, '11 at 2:39p
activeDec 15, '11 at 3:08p
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Fresh Mix: 1 post Frederick Cheung: 1 post

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