has_and_belongs_to_many :accounts
has_and_belongs_to_many :users
我的模型有我的关联。我试图使嵌套表单适用于构建用户和帐户。现在我正试图在form_for内嵌入一个基本的form_for，感觉非常严重，所以我正在试验fields_for。我的基本问题是，如果我处理嵌套表单，如何设置注册控制器这就是我现在所拥有的。
def new
@user = User.new
@account = Account.new
end
<%= render "shared/errors", object: @user %>
<div class="account-details" data-account-form-group="1">
<div class="new-account-accept__header">
<h1 class="heading-1">Create a New Account</h1>
<span><p>This will only take a couple seconds and then</span></p>
<span><p>you can get to work.</p></span>
</div>
<div class="new-account-accept__form">
<%= form_for(@user, url: user_registration_path, html: { id: "signup-form", autocomplete: "off"}) do |f| %>
<label clas="name-label">
<%= f.text_field :name, placeholder: "Name", class: "form-labels" %>
</label>
<label class="email-label">
<%= f.text_field :email, placeholder: "Email", class: "form-labels" %>
</label>
<label class="password-label">
<%= f.password_field :password, placeholder: "Password", class: "form-labels" %>
</label>
<div class="form-actions">
<span class="button-text close"><%= link_to "Cancel", root_path %></span>
<input type="button" data-plan-form-next />
<span class="button">Create Account</span>
</div>
</div>
</div>
<div class="project-details" data-account-form-group="2">
<%= render "project" %>
</div>
<div class="account--new-account">
<%= form_for @account, html: { class: "plan-select-form" } do |f| %>
<%= render "shared/errors", object: @account %>
<div data-plan-form-group="1">
<div class="new-project-info">
<h1 class="heading-1">New Project</h1>
<p class="p-body">
<span>Choose a name for your project.</span>
<span>This will make your project easier to identify.</span>
</p>
<label>
<%= u.text_field :name, required: true %>
</label>
<h3>Select a Plan for this Project</h3>
<h4>Most Popular Project Plan</h4>
</div>
<ol class="plan-picker">
<!-- Little Birdy -->
<li class="plan-picker__plan">
<div class="plan-picker__plan__header">
<div class="plan-icon little-birdy"></div>
<h6 class="plan-size">SMALL</h6>
<h5 class="plan-name">Little Birdy</h5>
<p class="plan-summary">Designed for individuals that need basic monitoring on a Project.</p>
</div>
<div class="plan-picker__plan__body">
<ul>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %><strong>3</strong> Snitches</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Basic Intervals</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> API</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Field Agent</li>
</ul>
</div>
<div class="plan-picker__plan__footer">
<h4>
<span class="dollar">$</span>9<span class="period">monthly</span><span class="cents">00</span>
</h4>
<label>
<input type="radio" name="slug" id="little_birdy" value="little_birdy" required data-plan-form-next data-plan-name="little Birdy" data-plan-price="9" />
<span class="button">Select</span>
</label>
</div>
</li>
<!-- Private Eye -->
<li class="plan-picker__plan plan-picker__plan--best">
<div class="plan-picker__plan__header">
<div class="plan-icon private-eye"></div>
<h6 class="plan-size">MEDIUM</h6>
<h5 class="plan-name">Private Eye</h5>
<p class="plan-summary">Great for small teams that need increased monitoring coverage options on a Project.</p>
</div>
<div class="plan-picker__plan__body">
<ul>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %><strong> 100</strong> Snitches</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Enhanced Invtervals</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> API</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Field Agent</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Integrations</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Up to <strong>5</strong> team members</li>
</ul>
</div>
<div class="plan-picker__plan__footer">
<h4>
<span class="dollar">$</span>29<span class="period">monthly</span><span class="cents">00</span>
</h4>
<label>
<input type="radio" name="slug" id="private_eye" value="private_eye" required data-plan-form-next data-plan-name="Private Eye" data-plan-price="29" />
<span class="button">Select</span>
</label>
</div>
</li>
<!-- Surveillance Van -->
<li class="plan-picker__plan">
<div class="plan-picker__plan__header">
<div class="plan-icon surveillance-van"></div>
<h6 class="plan-size">LARGE</h6>
<h5 class="plan-name">Surveillance Van</h5>
<p class="plan-summary">Perfect for larger teams that need maximum monitoring power on a Project.</p>
</div>
<div class="plan-picker__plan__body">
<ul>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %><strong> 300</strong> Snitches</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Strandard + Enhanced Intervals</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> API</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Field Agent</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Integrations</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Up to <strong>5</strong> team members</li>
<li><%= inline_svg("icons.svg", class: "icon icon--pause", href: "#icon-pause") %> Smart Alerts and Error Notices</li>
</ul>
</div>
<div class="plan-picker__plan__footer">
<h4>
<span class="dollar">$</span>79<span class="period muted">monthly</span><span class="cents">00</span>
</h4>
<label>
<input type="radio" name="slug" id="surveillance_van" value="surveillance_van" required data-plan-form-next data-plan-name="Surveillance Van" data-plan-price="79" />
<span class="button">Select</span>
</label>
</div>
</li>
</ol>
<!-- The Lone Snitch -->
<div class="lone-snitch">
<div class="lone-snitch__header">
<div class="plan-icon the-lone-snitch"></div>
<div class="plan-name">
<h3>TRIAL (one per account)</h3>
<h1>The Lone Snitch</h1>
</div>
</div>
<div class="lone-snitch__body">
<h2>1 single solitary Snitch</h2>
</div>
<div class="lone-snitch__footer">
<h4>
<span class="dollar">Free</span>
</h4>
<label>
<span class="radio"><input type="radio" name="slug" id="the_lone_snitch" value="the_lone_snitch" checked="checked" /></span>
<%= u.submit "Select", class: "button" %>
</label>
</div>
</div>
<span class="email">Need more than what you see here? <a href="mailto:hi@deadmanssnitch.com">Get in touch.</a></span>
</div>
<div class="payment-details hidden" data-plan-form-group="2">
<%= render "shared/payment", f: f %>
</div>
<% end %>
</div>
我知道它有很多代码，但我的基本问题保持不变我怎样才能改变尝试将form_for嵌套在彼此中并尝试使用字段？
答案 0 :(得分：1)
我不建议使用HABTM，因为has_many :through是一种更加灵活和可追溯的做法。那就是说，
<强>视图/用户/ new.html.erb
<%= form_for(@user, url: user_registration_path, html: { id: "signup-form", autocomplete: "off"}) do |f| %>
<%= f.text_field :name %>
<%= f.fields_for :accounts do |account_f| %>
<%= account_f.text_field :name %>
...
<% end %>
<% end %>
以上内容适用于创建具有帐户的用户，但您需要在新操作上预先填充至少一个帐户直接填写给用户。
<强>控制器/ users_controller.rb
def new
@user = User.new
3.times { @user.accounts.build }
...
end
private
def user_params
params.require(:user).permit(:name, accounts: [:name])
end
您还需要覆盖模型和控制器层上的有效参数。
<强>模型/ user.rb
accepts_nested_attributes_for :accounts, allow_destroy: true