Diving into Ruby on Rails
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Rails Form helpers. This guide is not intended to be a complete documentation of available form helpers and their arguments.
Please visit the Rails API documentation for a complete reference. 1 Dealing with Basic Forms The most basic form helper is form_tag. When called without arguments like this, it creates a <form> tag which, when submitted, will POST to the current page. For instance, assuming the current page is /home/index, the generated HTML will look like this (some line breaks added for readability):