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Match support for passing `authenticity_token:` in `form_with` and `form_for` calls. ```ruby button_to "Create", Post.new, authenticity_token: false # => <form class="button_to" method="post" action="/posts"><button type="submit">Create</button></form> button_to "Create", Post.new, authenticity_token: true # => <form class="button_to" method="post" action="/posts"><button type="submit">Create</button><input type="hidden" name="form_token" value="abc123..." autocomplete="off" /></form> button_to "Create", Post.new, authenticity_token: "secret" # => <form class="button_to" method="post" action="/posts"><button type="submit">Create</button><input type="hidden" name="form_token" value="secret" autocomplete="off" /></form> ```
Some background
---
By default, when a `<form>` is declared without an `[action]` attribute,
browsers will encode a `<form>`'s fields into the _current_ URL.
This can be useful for a `<form method="get">` that operates on the
current page. For example, when filtering search results, a form that
sorts:
```html
<form method="get">
<button name="sort" value="desc">Most to least</button>
<button name="sort" value="asc">Least to most</button>
</form>
```
can operate on a page that is filtered in another way by merging the
`?sort=asc` or `?sort=desc` values _into_ the existing page, which might
have the `?q=...` string set elsewhere.
The problem
---
Prior to this commit, none of the `<form>` construction variations
supported declaring a `<form>` without an `[action]` attribute.
`form_with`, `form_for`, and `form_tag` all default to `url_for({})`
when a `url:` or `action:` option is omitted.
The solution
---
Treat `url: false`, or `action: false` as an escape hatch to signal to
Action View that we don't need to transform the `model:` option or
argument into a Rails route.
Similarly, when calling `button_to` with `false` as the URL options
arguments will construct a `<form>` element without an `[action]`
attribute.
The `encoding` task has been removed a few years ago in rails@510db97
Remove non-existing encoding task dependency
Support `<form>` elements without `[action]`
…-token button_to: Support `authenticity_token:` option
…nt-direct-upload Pass service_name param to DirectUploadsController
Added note indicating how to handle <input type="file" name="file[]" ...>
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Added note indicating how to handle <input type="file" name="file[]" ...>
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