form_for , form_with and form_tag :; Difference

Forms in Rails ::::::::::::::::::::

Generally we hav used three basic types of the Forms in Rails

form_for :: Automatically includes the model id as hidden field in the form

form_tag :: It generates a form with the POST method by default

form_with :: Function of Rails to generate an HTML form tag

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form_for ::

The #form_for method automatically includes the model id as a hidden field in the form. This is used to maintain the correlation between the form data and its associated model. Some ORM systems do not use IDs on nested models so in this case you want to be able to disable the hidden id.

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form_with ::

form_with is a function that is created by Rails to generate an HTML form tag. It is like a handy shortcut for developers to create forms because forms in web applications are an important aspect for input data from users. Previously, other functions are already created by rails such as form_with and form_tag .

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form_tag ::

The form_tag Rails helper generates a form with the POST method by default, and it automatically renders the HTML that we were writing by hand before. ... In addition to updating the form fields, we'll also replace the HTML tag for the submit button with a submit_tag .