RailsConf 2017 Form Object

2020-02-27 304浏览

1.Decouple your models with FORM OBJECTS
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3.data model == form
4.data model == form accepts_nested_attributes_for
5.session[:user_attributes] = @user.all_the_attributes store data   in the session
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7.state machine
8.classDog::BreedDetails< Dog nested models
9.VIEW view > model MODEL
10.Let’s not do it!
11.Form Objects
12.3 FORM OBJECT What is a   form object?
13.3 FORM OBJECT What is a   form object? <%= form_for(@person) do f %> <%= f.input :name %> <%= f.button :submit, 'Submit' %> <% end %>
14.3 FORM OBJECT
15.3 FORM OBJECT
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17.Form 1 - Nested Data DATA MODEL Company name time_zone kind Phone Address address city state zip country_code number Account subscription_type User first_name last_name
18.Form 2 - Custom Logic DATA MODEL Company name time_zone kind Phone Address address city state zip country_code number Account subscription_type User first_name last_name
19.Form 3 - Data Scatter DATA MODEL Company name time_zone kind Phone Address address city state zip country_code number Account subscription_type User first_name last_name
20.3 FORM OBJECT
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88.3 FORM OBJECT
89.3 FORM OBJECT
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98.3 FORM OBJECT
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106.Prepopulators Populators
107.Prepopulators :new, :edit called manually with .prepopulate! prepares the form for rendering can fill out fields in the form Populators
108.Prepopulators Populators :new, :edit :create, :update called manually with .prepopulate! called every time when you .validate prepares the form for rendering can fill out fields in the form prepares the form for validating cares about matching the right data to the right model
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113.Form 1 - Nested Data DATA MODEL Company name time_zone kind Phone Address address city state zip country_code number Account subscription_type User first_name last_name
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116.3 FORM OBJECT
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141.3 FORM OBJECT
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143.Form 3 - Data Scatter DATA MODEL Company name time_zone kind Phone Address address city state zip country_code number Account subscription_type User first_name last_name
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165.4 A D V A N TA G E S Advantages
166.4 A D V A N TA G E S ‣ Model agnostic ‣ Validation is context-specific Form   Objects ‣ RESTful ‣ Easy to test ‣ Easy to extend and modify ‣ Use when you need to
167.4 A D V A N TA G E S ‣ Model agnostic ‣ Validation is context-specific Form   Objects ‣ RESTful ‣ Easy to test ‣ Easy to extend and modify ‣ Use when you need to
168.4 A D V A N TA G E S ‣ Model agnostic ‣ Validation is context-specific Form   Objects ‣ RESTful ‣ Easy to test ‣ Easy to extend and modify ‣ Use when you need to
169.4 A D V A N TA G E S ‣ Model agnostic ‣ Validation is context-specific Form   Objects ‣ RESTful ‣ Easy to test ‣ Easy to extend and modify ‣ Use when you need to
170.4 A D V A N TA G E S ‣ Model agnostic ‣ Validation is context-specific Form   Objects ‣ RESTful ‣ Easy to test ‣ Easy to extend and modify ‣ Use when you need to
171.4 A D V A N TA G E S ‣ Model agnostic ‣ Validation is context-specific Form   Objects ‣ RESTful ‣ Easy to test ‣ Easy to extend and modify ‣ Use when you need to
172.The end.
173.attributesHTTPS://FORUM.UPCASE.COM/T/FORM-OBJECTS/2267H T T P S : / / R O B O T S . T H O U G H T B O T. C O M / A C T I V E M O D E L - F O R M - O B J E C T SHTTP://TRAILBLAZER.TO/GEMS/REFORM'>HTTP://TRAILBLAZER.TO/GEMS/REFORM