Rails Collection Select Options
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Select person index like the other form helpers select can accept an index option to manually set the id used in the resulting output.
Rails collection select options. Options for select container selected nil public accepts a container hash array enumerable your type and returns a string of option tags. The first argument to options for select is a nested array where each element has two elements. How to use collection select in rails. Select post person id person all collect p p name p id prompt.
If selected is specified as a proc those members of the collection that return true for the anonymous function are the selected values. There are two possible formats for the choices parameter corresponding to other helpers output. Create a select tag and a series of contained option tags for the provided object and method. Unlike other helpers select expects this option to be in the html options parameter.
The option value is what will be submitted to your controller. Option text city name and option value city id. The option currently held by the object will be selected provided that the object is available. November 26 2016 at 7 21 pm.
I m struggling with adding multiple option values to a rails form with collection select and i am wondering what is the best way to set this up with the forms that i have. A flat collection see options for select. The value returned from calling method on the instance object will be selected. Select tag person options from collection for select people id name if selected is specified as a value or array of values the element s returning a match on value method will be selected option tag s.
Enter ruby on rails s collection select form helper. Given a container where the elements respond to first and last such as a two element array the lasts serve as option values and the firsts as option text. It generates an http select tag and option tags that render a dropdown menu with multiple options note.
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