Wie reformieren Sie die Voreinstellung für vorgestellte Objekte?

Question

Wenn ein Benutzer beispielsweise auf "Take a Picture" klickt, wie können wir das create.html.erb-Formular mit Attributen auffüllen, die speziell für diese hervorgehobene Aufgabe festgelegt wurden, wie für 12 Tage und unter Tue, Thu?

Ich verwende die reform gem.

#challenges_controller 
def new 
    @challenge = Challenge.new 
    respond_modal_with @challenge, location: root_path 
end 

#challenges/new.html.erb 
<%= simple_form_for(@challenge, html: { data: { modal: true } }) do |f| %> 
    <%= f.text_field :action, placeholder: 'Enter a Custom Challenge' %><br> 
    Or choose a featured challenge: 
    <%= f.collection_radio_buttons :action, [['Run a Mile','Run a Mile'], ['Drink 16oz of Water','Drink 16oz of Water'], ['Take a Picture','Take a Picture'], ['1 Drink Max','1 Drink Max'], ['See Eiffel Tower','See Eiffel Tower'], ['Write a Book','Write a Book'], ['Skydive','Skydive'], ['Start a Business','Start a Business'], ['No Snooze','No Snooze'], ['Visit All 50 States','Visit All 50 States'], ['Talk to a Stranger','Talk to a Stranger'], ['Try a New Recipe','Try a New Recipe'], ['Media-fast','Media-fast']], :first, :last %> 
    <%= f.submit %> 
<% end %> 

#challenges_controller 
def create 
    @challenge = Challenge.new(challenge_params) #create is being used to GET and then POST 
    if params[:step] == '2' 
    @challenge = current_user.challenges.build(challenge_params) 
    @challenge.save 
    redirect_to @challenge 
    end 
end 

#challenges/create.html.erb 
<%= simple_form_for(@challenge) do |f| %> 
<%= hidden_field_tag :step, 2 %> 
    Challenge: <%= f.text_field :action %> 
    Do For: <%= f.number_field :days_challenged, value: 10 %> 
    Do On: <%= f.collection_check_boxes :committed %> 
<% end %> 

class ChallengeForm < Reform::Form 
    property :action 
    property :committed 
    property :days_challenged 

    model :challenge 

    def commited 
    super || action_to_commited_hash[model.action] 
    end 

    def days_challenged 
    super || action_to_days_challenged_hash[model.action] 
    end 

    def action_to_days_challenged_hash 
    { 
     'Run a Mile' => 30, 
     'Take a Picture' => 12 
    } 
    end 

    def action_to_commited_hash 
    { 
     'Run a Mile' => ['Mon', 'Wed', 'Fri'], 
     'Take a Picture' => ['Tue', 'Thu'] 
    } 
    end 
end 

Da es jetzt ChallengeForm keinen Einfluss auf create.html.erb hatte. Wie können wir die Standardeinstellungen in create.html.erb je nach den vorgestellten :action richtig einfügen?

Answer 1

starten:

challenges_controller

def new 
    @form = ChallengeForm.new(Challenge.new) 

    respond_modal_with @form, location: root_path 
    end 

    def create 
    challenge = Challenge.new(challenge_params) 
    @form = ChallengeForm.new(challenge) 

    if params[:step] == '2' 
     @form.validate(user_id: current_user.id) 
     @form.save 
     redirect_to challenge 
    end 
    end 

Herausforderungen/new.html.erb

<%= simple_form_for @form, html: { data: { modal: true } }, url: 'your_challenge_create_path', method: :post do |f| %> 

    <%= f.text_field :action, placeholder: 'Enter a Custom Challenge' %><br> 
    Or choose a featured challenge: 
    <%= f.collection_radio_buttons :action, [['Run a Mile','Run a Mile'], ['Drink 16oz of Water','Drink 16oz of Water'], ['Take a Picture','Take a Picture'], ['1 Drink Max','1 Drink Max'], ['See Eiffel Tower','See Eiffel Tower'], ['Write a Book','Write a Book'], ['Skydive','Skydive'], ['Start a Business','Start a Business'], ['No Snooze','No Snooze'], ['Visit All 50 States','Visit All 50 States'], ['Talk to a Stranger','Talk to a Stranger'], ['Try a New Recipe','Try a New Recipe'], ['Media-fast','Media-fast']], :first, :last %> 
    <%= f.submit %> 
<% end %> 

Herausforderungen/create.html.erb

<%= simple_form_for @form, html: { data: { modal: true } }, url: 'your_challenge_create_path', method: :post do |f| %> 
    <%= hidden_field_tag :step, 2 %> 
    Challenge: <%= f.text_field :action %> 
    Do For: <%= f.number_field :days_challenged %> 
    Do On: <%= f.collection_check_boxes :committed %> 
<% end %> 

ich vielleicht ein bisschen weg, aber Sie erhalten den Punkt?

Answer 2

Sie übergeben die @challenge an das Formular, aber möglicherweise möchten Sie das Formularobjekt übergeben.

Um das zu tun, einige Code in der Steuerung hinzu:

@challenge_form = ChallengeForm.new(@challenge) 

und dann in der Ansicht:

<%= simple_form_for(@challenge_form, html: { data: { modal: true } }) do |f| %>