Rails Cocoon 添加字段 link 不工作
Rails Cocoon add field link not working
我正在尝试动态添加一个名为 URL 的字段，该字段来自 table 称为地址的表单 table 称为 essentials 到使用简单表单的表单。我用的是茧gem。我也没有嵌套表单的经验。我当前的错误是 undefined method `input' for :address:Symbol。我正在使用设计、基础 6、rails 4 和简单形式。
Application.js
//= require jquery
//= require jquery_ujs
//= require foundation
$(document).foundation();
//= require_tree .
//= require cocoon
//= require global
//= require jquery-ui
//= require turbolinks
global.coffee
jQuery(document).on 'turbolinks:load', ->
addresses = $('#addresses')
count = addresses.find('.count > span')
recount = -> count.text addresses.find('.nested-fields').size()
addresses.on 'cocoon:before-insert', (e, el_to_add) ->
el_to_add.fadeIn(1000)
addresses.on 'cocoon:after-insert', (e, added_el) ->
added_el.effect('highlight', {}, 500)
recount()
addresses.on 'cocoon:before-remove', (e, el_to_remove) ->
$(this).data('remove-timeout', 1000)
el_to_remove.fadeOut(1000)
addresses.on 'cocoon:after-remove', (e, removed_el) ->
recount()
address.rb
class Address < ActiveRecord::Base
belongs_to :essential
end
essentials.rb
class Address < ActiveRecord::Base
belongs_to :user
has_many :addresses
accepts_nested_attributes_for :addresses, :reject_if => :all_blank, :allow_destroy => true
end
user.rb
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
has_many :essentials
has_many :addresses
end
_address_fields.html.erb
<div class='fields'>
<%= f.input :url %>
<%= link_to_remove_association "remove address", f %>
</div>
_form.html.erb
<%= simple_form_for @essential do |f| %>
<%= f.input :band_name, placeholder: "Band Name" %>
<div>
<%= f.input :years_active_start, placeholder: "Start" %> <%= f.input :years_active_end, placeholder: "End" %>
</div>
<%= f.input :country, placeholder: "country" %>
<h6>Studio Albums</h6>
<%= f.select :studio_albums, options_for_select([ "1","2","3","4","5","6","7","8","9","10","11","12" ]){}, {} %>
<%= f.input :band_members, placeholder: "Band Members" %>
<%= f.select :genre, options_for_select([
"Art Punk",
"Alternative Rock",
"College Rock",
"Crossover Thrash",
"Crust Punk",
"Experimental Rock",
"Folk Punk",
"Goth/Gothic Rock",
"Grunge",
"Hardcore Punk",
"Hard Rock",
"Indie Rock",
"Lo-fi",
"New Wave",
"Progressive Rock",
"Punk",
"Shoegaze",
"Steampunk",
"Anime",
"Blues",
"Acoustic Blues",
"Chicago Blues",
"Classic Blues",
"Contemporary Blues",
"Country Blues",
"Delta Blues",
"Electric Blues",
"Ragtime Blues",
"Children’s Music",
"Lullabies",
"Sing-Along",
"Stories",
"Classical",
"Avant-Garde",
"Baroque",
"Chamber Music",
"Chant",
"Choral",
"Classical Crossover",
"Contemporary Classical",
"Early Music",
"Expressionist",
"High Classical",
"Impressionist",
"Medieval",
"Minimalism",
"Modern Composition",
"Opera",
"Orchestral",
"Renaissance",
"Romantic",
"Wedding Music",
"Comedy",
"Novelty",
"Standup Comedy",
"Vaudeville",
"Commercial",
"Jingles",
"TV Themes",
"Country",
"Alternative Country",
"Americana",
"Bluegrass",
"Contemporary Bluegrass",
"Contemporary Country",
"Country Gospel",
"Country Pop",
"Honky Tonk",
"Outlaw Country",
"Traditional Bluegrass",
"Traditional Country",
"Urban Cowboy",
"Dance",
"Club / Club Dance",
"Breakcore",
"Breakbeat/Breakstep",
"Brostep",
"Chillstep",
"Deep House",
"Dubstep",
"Electro House",
"Electroswing",
"Exercise",
"Future Garage",
"Garage",
"Glitch Hop",
"Glitch Pop",
"Grime",
"Hardcore",
"Hard Dance",
"Hi-NRG/Eurodance",
"Horrorcore",
"House",
"Jackin House",
"Jungle/Drum’n’bass",
"Liquid Dub",
"Regstep",
"Speedcore",
"Techno",
"Trance",
"Trap",
"Disney",
"Easy Listening",
"Bop",
"Lounge",
"Swing",
"Electronic",
"2-Step",
"8-bit",
"Ambient",
"Bassline",
"Chillwave",
"Chiptune",
"Crunk",
"Downtempo",
"Drum & Bass",
"Electro",
"Electro-swing",
"Electronica",
"Electronic Rock",
"Hardstyle",
"IDM/Experimental",
"Industrial",
"Trip Hop",
"Enka",
"French Pop",
"German Folk",
"German Pop",
"Fitness & Workout",
"Hip-Hop/Rap",
"Alternative Rap",
"Bounce",
"Dirty South",
"East Coast Rap",
"Gangsta Rap",
"Hardcore Rap",
"Hip-Hop",
"Latin Rap",
"Old School Rap",
"Rap",
"Turntablism",
"Underground Rap",
"West Coast Rap",
"Holiday",
"Chanukah",
"Christmas",
"Christmas: Children’s",
"Christmas: Classic",
"Christmas: Classical",
"Christmas: Comedy",
"Christmas: Jazz",
"Christmas: Modern",
"Christmas: Pop",
"Christmas: R&B",
"Christmas: Religious",
"Christmas: Rock",
"Easter",
"Halloween",
"Holiday: Other",
"Thanksgiving",
"Indie Pop",
"Industrial",
"Inspirational",
"CCM",
"Christian Metal",
"Christian Pop",
"Christian Rap",
"Christian Rock",
"Classic Christian",
"Contemporary Gospel",
"Gospel",
"Christian & Gospel",
"Praise & Worship",
"Qawwali",
"Southern Gospel",
"Traditional Gospel",
"Instrumental",
"March",
"J-Pop",
"J-Rock",
"J-Synth",
"J-Ska",
"J-Punk",
"Jazz",
"Acid Jazz",
"Avant-Garde Jazz",
"Bebop",
"Big Band",
"Blue Note",
"Contemporary Jazz",
"Cool",
"Crossover Jazz",
"Dixieland",
"Ethio-jazz",
"Fusion",
"Gypsy Jazz",
"Hard Bop",
"Latin Jazz",
"Mainstream Jazz",
"Ragtime",
"Smooth Jazz",
"Trad Jazz",
"K-Pop",
"Karaoke",
"Kayokyoku",
"Latin",
"Alternativo & Rock Latino",
"Argentine tango",
"Baladas y Boleros",
"Bossa Nova",
"Brazilian",
"Contemporary Latin",
"Cumbia",
"Flamenco / Spanish Flamenco",
"Latin Jazz",
"Nuevo Flamenco",
"Pop Latino",
"Portuguese fado",
"Raíces",
"Reggaeton y Hip-Hop",
"Regional Mexicano",
"Salsa y Tropical",
"New Age",
"Environmental",
"Healing",
"Meditation",
"Nature",
"Relaxation",
"Travel",
"Opera",
"Pop",
"Adult Contemporary",
"Britpop",
"Bubblegum Pop",
"Chamber Pop",
"Dance Pop",
"Dream Pop",
"Electro Pop",
"Orchestral Pop",
"Pop/Rock",
"Pop Punk",
"Power Pop",
"Soft Rock",
"Synthpop",
"Teen Pop",
"R&B/Soul",
"Contemporary R&B",
"Disco",
"Doo Wop",
"Funk",
"Modern Soul",
"Motown",
"Neo-Soul",
"Northern Soul",
"Psychedelic Soul",
"Quiet Storm",
"Soul",
"Soul Blues",
"Southern Soul",
"Reggae",
"2-Tone",
"Dancehall",
"Dub",
"Roots Reggae",
"Ska",
"Rock",
"Acid Rock",
"Adult-Oriented Rock",
"Afro Punk",
"Adult Alternative",
"Alternative Rock",
"American Trad Rock",
"Anatolian Rock",
"Arena Rock",
"Art Rock",
"Blues-Rock",
"British Invasion",
"Cock Rock",
"Death Metal / Black Metal",
"Doom Metal",
"Glam Rock",
"Gothic Metal",
"Grind Core",
"Hair Metal",
"Hard Rock",
"Math Metal",
"Math Rock",
"Metal",
"Metal Core",
"Noise Rock",
"Jam Bands",
"Post Punk",
"Prog-Rock/Art Rock",
"Progressive Metal",
"Psychedelic",
"Rock & Roll",
"Rockabilly",
"Roots Rock",
"Singer/Songwriter",
"Southern Rock",
"Spazzcore",
"Stoner Metal",
"Surf",
"Technical Death Metal",
"Tex-Mex",
"Time Lord Rock (Trock)",
"Trash Metal",
"Singer/Songwriter",
"Alternative Folk",
"Contemporary Folk",
"Contemporary Singer/Songwriter",
"Indie Folk",
"Folk-Rock",
"Love Song",
"New Acoustic",
"Traditional Folk",
"Soundtrack",
"Foreign Cinema",
"Movie Soundtrack",
"Musicals",
"Original Score",
"Soundtrack",
"TV Soundtrack",
"Spoken Word",
"Tex-Mex / Tejano",
"Chicano",
"Classic",
"Conjunto",
"Conjunto Progressive",
"New Mex",
"Tex-Mex",
"Vocal",
"A cappella",
"Barbershop",
"Doo-wop",
"Gregorian Chant",
"Standards",
"Traditional Pop",
"Vocal Jazz",
"Vocal Pop",
"World",
"Africa",
"Afro-Beat",
"Afro-Pop",
"Asia",
"Australia",
"Cajun",
"Calypso",
"Caribbean",
"Carnatic",
"Celtic",
"Celtic Folk",
"Contemporary Celtic",
"Coupé-décalé",
"Dangdut",
"Drinking Songs",
"Drone",
"Europe",
"France",
"Hawaii",
"Hindustani",
"Indian Ghazal",
"Indian Pop",
"Japan",
"Japanese Pop",
"Klezmer",
"Mbalax",
"Middle East",
"North America",
"Ode",
"Piphat",
"Polka",
"Soca",
"South",
"South America",
"Traditional Celtic",
"Worldbeat",
"Zydeco",
]){}, {} %>
<h6>Description</h6>
<%= f.text_area :description, :input_html => { class: 'test', :rows => 50 } %>
<%= f.hidden_field :user_id %>
<div id="addresses">
<%= f.simple_fields_for :addresses do |address| %>
<%= render 'address_fields', :f => address %>
<% end %>
<div class="links">
<%= link_to_add_association 'add address', f, :addresses %>
</div>
</div>
</div>
<% f.button :submit %>
<% end %>
essentials_controller.rb
class EssentialsController < ApplicationController
# GET /essentials
# GET /essentials.json
def index
@user_id = current_user.id
@essentials = Essential.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => @essentials }
end
end
# GET /essentials/1
# GET /essentials/1.json
def show
@essential = Essential.find(params[:id])
end
# GET /essentials/new
def new
@essential = Essential.new
@essential.addresses.build
# 3.times { @essential.addresses.build}
end
# GET /essentials/1/edit
def edit
@essential = Essential.find_by(id: params[:id])
end
# POST /essentials
# POST /essentials.json
def create
@essential = Essential.new(essential_params)
if @essential.save
redirect_to root_path
else
render :new
end
@essential.user_id = current_user.id
@essential.save
end
# PATCH/PUT /essentials/1
# PATCH/PUT /essentials/1.json
def update
s
end
# DELETE /essentials/1
# DELETE /essentials/1.json
def destroy
@essential = Essential.find(params[:id])
if @essential.present?
@essential.destroy
redirect_to essentials_path, notice: "Post was deleted"
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_essential
@essential = Essential.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def essential_params
params.require(:essential).permit(
:band_name, :years_active_start, :country, :studio_albums, :band_members, :genre, :description, :user_id, :years_active_end, addresses_attributes: [:id, :_destroy, :url, :essential_id])
end
end
schema.rb
ActiveRecord::Schema.define(version: 20161120025634) do
create_table "addresses", force: :cascade do |t|
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.text "url", limit: 65535
t.integer "essential_id", limit: 4
end
create_table "essentials", force: :cascade do |t|
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "band_members", limit: 255
t.integer "years_active_end", limit: 4
t.integer "years_active_start", limit: 4
t.string "band_name", limit: 255
t.string "country", limit: 255
t.string "studio_albums", limit: 255
t.string "genre", limit: 255
t.integer "user_id", limit: 4
t.text "description", limit: 65535
end
create_table "homes", force: :cascade do |t|
t.string "index", limit: 255
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
create_table "users", force: :cascade do |t|
t.string "email", limit: 255, default: "", null: false
t.string "encrypted_password", limit: 255, default: "", null: false
t.string "reset_password_token", limit: 255
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count", limit: 4, default: 0, null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string "current_sign_in_ip", limit: 255
t.string "last_sign_in_ip", limit: 255
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "first_name", limit: 255
t.string "last_name", limit: 255
end
add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
end
你写
<%= render 'address_fields', :f => :address %>
应该是
<%= render 'address_fields', :f => address %>
换句话说：使用给周围块的变量（不是碰巧同名的符号）。
我正在尝试动态添加一个名为 URL 的字段，该字段来自 table 称为地址的表单 table 称为 essentials 到使用简单表单的表单。我用的是茧gem。我也没有嵌套表单的经验。我当前的错误是 undefined method `input' for :address:Symbol。我正在使用设计、基础 6、rails 4 和简单形式。
Application.js
//= require jquery
//= require jquery_ujs
//= require foundation
$(document).foundation();
//= require_tree .
//= require cocoon
//= require global
//= require jquery-ui
//= require turbolinks
global.coffee
jQuery(document).on 'turbolinks:load', ->
addresses = $('#addresses')
count = addresses.find('.count > span')
recount = -> count.text addresses.find('.nested-fields').size()
addresses.on 'cocoon:before-insert', (e, el_to_add) ->
el_to_add.fadeIn(1000)
addresses.on 'cocoon:after-insert', (e, added_el) ->
added_el.effect('highlight', {}, 500)
recount()
addresses.on 'cocoon:before-remove', (e, el_to_remove) ->
$(this).data('remove-timeout', 1000)
el_to_remove.fadeOut(1000)
addresses.on 'cocoon:after-remove', (e, removed_el) ->
recount()
address.rb
class Address < ActiveRecord::Base
belongs_to :essential
end
essentials.rb
class Address < ActiveRecord::Base
belongs_to :user
has_many :addresses
accepts_nested_attributes_for :addresses, :reject_if => :all_blank, :allow_destroy => true
end
user.rb
class User < ActiveRecord::Base
# Include default devise modules. Others available are:
# :confirmable, :lockable, :timeoutable and :omniauthable
devise :database_authenticatable, :registerable,
:recoverable, :rememberable, :trackable, :validatable
has_many :essentials
has_many :addresses
end
_address_fields.html.erb
<div class='fields'>
<%= f.input :url %>
<%= link_to_remove_association "remove address", f %>
</div>
_form.html.erb
<%= simple_form_for @essential do |f| %>
<%= f.input :band_name, placeholder: "Band Name" %>
<div>
<%= f.input :years_active_start, placeholder: "Start" %> <%= f.input :years_active_end, placeholder: "End" %>
</div>
<%= f.input :country, placeholder: "country" %>
<h6>Studio Albums</h6>
<%= f.select :studio_albums, options_for_select([ "1","2","3","4","5","6","7","8","9","10","11","12" ]){}, {} %>
<%= f.input :band_members, placeholder: "Band Members" %>
<%= f.select :genre, options_for_select([
"Art Punk",
"Alternative Rock",
"College Rock",
"Crossover Thrash",
"Crust Punk",
"Experimental Rock",
"Folk Punk",
"Goth/Gothic Rock",
"Grunge",
"Hardcore Punk",
"Hard Rock",
"Indie Rock",
"Lo-fi",
"New Wave",
"Progressive Rock",
"Punk",
"Shoegaze",
"Steampunk",
"Anime",
"Blues",
"Acoustic Blues",
"Chicago Blues",
"Classic Blues",
"Contemporary Blues",
"Country Blues",
"Delta Blues",
"Electric Blues",
"Ragtime Blues",
"Children’s Music",
"Lullabies",
"Sing-Along",
"Stories",
"Classical",
"Avant-Garde",
"Baroque",
"Chamber Music",
"Chant",
"Choral",
"Classical Crossover",
"Contemporary Classical",
"Early Music",
"Expressionist",
"High Classical",
"Impressionist",
"Medieval",
"Minimalism",
"Modern Composition",
"Opera",
"Orchestral",
"Renaissance",
"Romantic",
"Wedding Music",
"Comedy",
"Novelty",
"Standup Comedy",
"Vaudeville",
"Commercial",
"Jingles",
"TV Themes",
"Country",
"Alternative Country",
"Americana",
"Bluegrass",
"Contemporary Bluegrass",
"Contemporary Country",
"Country Gospel",
"Country Pop",
"Honky Tonk",
"Outlaw Country",
"Traditional Bluegrass",
"Traditional Country",
"Urban Cowboy",
"Dance",
"Club / Club Dance",
"Breakcore",
"Breakbeat/Breakstep",
"Brostep",
"Chillstep",
"Deep House",
"Dubstep",
"Electro House",
"Electroswing",
"Exercise",
"Future Garage",
"Garage",
"Glitch Hop",
"Glitch Pop",
"Grime",
"Hardcore",
"Hard Dance",
"Hi-NRG/Eurodance",
"Horrorcore",
"House",
"Jackin House",
"Jungle/Drum’n’bass",
"Liquid Dub",
"Regstep",
"Speedcore",
"Techno",
"Trance",
"Trap",
"Disney",
"Easy Listening",
"Bop",
"Lounge",
"Swing",
"Electronic",
"2-Step",
"8-bit",
"Ambient",
"Bassline",
"Chillwave",
"Chiptune",
"Crunk",
"Downtempo",
"Drum & Bass",
"Electro",
"Electro-swing",
"Electronica",
"Electronic Rock",
"Hardstyle",
"IDM/Experimental",
"Industrial",
"Trip Hop",
"Enka",
"French Pop",
"German Folk",
"German Pop",
"Fitness & Workout",
"Hip-Hop/Rap",
"Alternative Rap",
"Bounce",
"Dirty South",
"East Coast Rap",
"Gangsta Rap",
"Hardcore Rap",
"Hip-Hop",
"Latin Rap",
"Old School Rap",
"Rap",
"Turntablism",
"Underground Rap",
"West Coast Rap",
"Holiday",
"Chanukah",
"Christmas",
"Christmas: Children’s",
"Christmas: Classic",
"Christmas: Classical",
"Christmas: Comedy",
"Christmas: Jazz",
"Christmas: Modern",
"Christmas: Pop",
"Christmas: R&B",
"Christmas: Religious",
"Christmas: Rock",
"Easter",
"Halloween",
"Holiday: Other",
"Thanksgiving",
"Indie Pop",
"Industrial",
"Inspirational",
"CCM",
"Christian Metal",
"Christian Pop",
"Christian Rap",
"Christian Rock",
"Classic Christian",
"Contemporary Gospel",
"Gospel",
"Christian & Gospel",
"Praise & Worship",
"Qawwali",
"Southern Gospel",
"Traditional Gospel",
"Instrumental",
"March",
"J-Pop",
"J-Rock",
"J-Synth",
"J-Ska",
"J-Punk",
"Jazz",
"Acid Jazz",
"Avant-Garde Jazz",
"Bebop",
"Big Band",
"Blue Note",
"Contemporary Jazz",
"Cool",
"Crossover Jazz",
"Dixieland",
"Ethio-jazz",
"Fusion",
"Gypsy Jazz",
"Hard Bop",
"Latin Jazz",
"Mainstream Jazz",
"Ragtime",
"Smooth Jazz",
"Trad Jazz",
"K-Pop",
"Karaoke",
"Kayokyoku",
"Latin",
"Alternativo & Rock Latino",
"Argentine tango",
"Baladas y Boleros",
"Bossa Nova",
"Brazilian",
"Contemporary Latin",
"Cumbia",
"Flamenco / Spanish Flamenco",
"Latin Jazz",
"Nuevo Flamenco",
"Pop Latino",
"Portuguese fado",
"Raíces",
"Reggaeton y Hip-Hop",
"Regional Mexicano",
"Salsa y Tropical",
"New Age",
"Environmental",
"Healing",
"Meditation",
"Nature",
"Relaxation",
"Travel",
"Opera",
"Pop",
"Adult Contemporary",
"Britpop",
"Bubblegum Pop",
"Chamber Pop",
"Dance Pop",
"Dream Pop",
"Electro Pop",
"Orchestral Pop",
"Pop/Rock",
"Pop Punk",
"Power Pop",
"Soft Rock",
"Synthpop",
"Teen Pop",
"R&B/Soul",
"Contemporary R&B",
"Disco",
"Doo Wop",
"Funk",
"Modern Soul",
"Motown",
"Neo-Soul",
"Northern Soul",
"Psychedelic Soul",
"Quiet Storm",
"Soul",
"Soul Blues",
"Southern Soul",
"Reggae",
"2-Tone",
"Dancehall",
"Dub",
"Roots Reggae",
"Ska",
"Rock",
"Acid Rock",
"Adult-Oriented Rock",
"Afro Punk",
"Adult Alternative",
"Alternative Rock",
"American Trad Rock",
"Anatolian Rock",
"Arena Rock",
"Art Rock",
"Blues-Rock",
"British Invasion",
"Cock Rock",
"Death Metal / Black Metal",
"Doom Metal",
"Glam Rock",
"Gothic Metal",
"Grind Core",
"Hair Metal",
"Hard Rock",
"Math Metal",
"Math Rock",
"Metal",
"Metal Core",
"Noise Rock",
"Jam Bands",
"Post Punk",
"Prog-Rock/Art Rock",
"Progressive Metal",
"Psychedelic",
"Rock & Roll",
"Rockabilly",
"Roots Rock",
"Singer/Songwriter",
"Southern Rock",
"Spazzcore",
"Stoner Metal",
"Surf",
"Technical Death Metal",
"Tex-Mex",
"Time Lord Rock (Trock)",
"Trash Metal",
"Singer/Songwriter",
"Alternative Folk",
"Contemporary Folk",
"Contemporary Singer/Songwriter",
"Indie Folk",
"Folk-Rock",
"Love Song",
"New Acoustic",
"Traditional Folk",
"Soundtrack",
"Foreign Cinema",
"Movie Soundtrack",
"Musicals",
"Original Score",
"Soundtrack",
"TV Soundtrack",
"Spoken Word",
"Tex-Mex / Tejano",
"Chicano",
"Classic",
"Conjunto",
"Conjunto Progressive",
"New Mex",
"Tex-Mex",
"Vocal",
"A cappella",
"Barbershop",
"Doo-wop",
"Gregorian Chant",
"Standards",
"Traditional Pop",
"Vocal Jazz",
"Vocal Pop",
"World",
"Africa",
"Afro-Beat",
"Afro-Pop",
"Asia",
"Australia",
"Cajun",
"Calypso",
"Caribbean",
"Carnatic",
"Celtic",
"Celtic Folk",
"Contemporary Celtic",
"Coupé-décalé",
"Dangdut",
"Drinking Songs",
"Drone",
"Europe",
"France",
"Hawaii",
"Hindustani",
"Indian Ghazal",
"Indian Pop",
"Japan",
"Japanese Pop",
"Klezmer",
"Mbalax",
"Middle East",
"North America",
"Ode",
"Piphat",
"Polka",
"Soca",
"South",
"South America",
"Traditional Celtic",
"Worldbeat",
"Zydeco",
]){}, {} %>
<h6>Description</h6>
<%= f.text_area :description, :input_html => { class: 'test', :rows => 50 } %>
<%= f.hidden_field :user_id %>
<div id="addresses">
<%= f.simple_fields_for :addresses do |address| %>
<%= render 'address_fields', :f => address %>
<% end %>
<div class="links">
<%= link_to_add_association 'add address', f, :addresses %>
</div>
</div>
</div>
<% f.button :submit %>
<% end %>
essentials_controller.rb
class EssentialsController < ApplicationController
# GET /essentials
# GET /essentials.json
def index
@user_id = current_user.id
@essentials = Essential.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => @essentials }
end
end
# GET /essentials/1
# GET /essentials/1.json
def show
@essential = Essential.find(params[:id])
end
# GET /essentials/new
def new
@essential = Essential.new
@essential.addresses.build
# 3.times { @essential.addresses.build}
end
# GET /essentials/1/edit
def edit
@essential = Essential.find_by(id: params[:id])
end
# POST /essentials
# POST /essentials.json
def create
@essential = Essential.new(essential_params)
if @essential.save
redirect_to root_path
else
render :new
end
@essential.user_id = current_user.id
@essential.save
end
# PATCH/PUT /essentials/1
# PATCH/PUT /essentials/1.json
def update
s
end
# DELETE /essentials/1
# DELETE /essentials/1.json
def destroy
@essential = Essential.find(params[:id])
if @essential.present?
@essential.destroy
redirect_to essentials_path, notice: "Post was deleted"
end
end
private
# Use callbacks to share common setup or constraints between actions.
def set_essential
@essential = Essential.find(params[:id])
end
# Never trust parameters from the scary internet, only allow the white list through.
def essential_params
params.require(:essential).permit(
:band_name, :years_active_start, :country, :studio_albums, :band_members, :genre, :description, :user_id, :years_active_end, addresses_attributes: [:id, :_destroy, :url, :essential_id])
end
end
schema.rb
ActiveRecord::Schema.define(version: 20161120025634) do
create_table "addresses", force: :cascade do |t|
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.text "url", limit: 65535
t.integer "essential_id", limit: 4
end
create_table "essentials", force: :cascade do |t|
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "band_members", limit: 255
t.integer "years_active_end", limit: 4
t.integer "years_active_start", limit: 4
t.string "band_name", limit: 255
t.string "country", limit: 255
t.string "studio_albums", limit: 255
t.string "genre", limit: 255
t.integer "user_id", limit: 4
t.text "description", limit: 65535
end
create_table "homes", force: :cascade do |t|
t.string "index", limit: 255
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
end
create_table "users", force: :cascade do |t|
t.string "email", limit: 255, default: "", null: false
t.string "encrypted_password", limit: 255, default: "", null: false
t.string "reset_password_token", limit: 255
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer "sign_in_count", limit: 4, default: 0, null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.string "current_sign_in_ip", limit: 255
t.string "last_sign_in_ip", limit: 255
t.datetime "created_at", null: false
t.datetime "updated_at", null: false
t.string "first_name", limit: 255
t.string "last_name", limit: 255
end
add_index "users", ["email"], name: "index_users_on_email", unique: true, using: :btree
add_index "users", ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true, using: :btree
end
你写
<%= render 'address_fields', :f => :address %>
应该是
<%= render 'address_fields', :f => address %>
换句话说：使用给周围块的变量（不是碰巧同名的符号）。