5.image と text の情報は取得できていることがわかる。
6.次にtweet_paramsを確認すると、user_id しか取得できていないことがわかった。
[2] pry(#<TweetsController>)> tweet_params
User Load (0.4ms) SELECT `users`.* FROM `users` WHERE `users`.`id` = 1 ORDER BY `users`.`id` ASC LIMIT 1
↳ app/controllers/tweets_controller.rb:42
=> {:user_id=>1}
7.したがって、ストロングパラメータで指定しているパラメータに不備があることがわかる。
8. ストロングパラメータにおいて、image と text も許可（permit）するように記載することで解決できる。
(中略)
rails aborted!
StandardError: An error has occurred, all later migrations canceled:
Mysql2::Error: Table 'プロジェクト名_development.products' doesn't exist: SHOW FULL FIELDS FROM `products`
(中略）
class PostsController < ApplicationController
def index
（処理）
end
def new
（処理）
end
def create
（処理）
end
private
def private_method # プライベートメソッド
params.require(`モデル名`).permit(`カラム名`)
end
end
def create
Post.create(post_params)
end
private
def post_params
params.require(:post).permit(:title, :text, :image)
end
#ターミナル履歴
bundle install
rails g devise:install
rails g devise user
rails db:migrate
ターミナル履歴におかしいところはない。
しかしconfig/initializers/devise.rbと config/locales/devise.en.ymlファイルがインストールがされていないので、rails g devise installに問題があるのではないか？
gemはローカルサーバーの再起動をしないと反映されないので、rails g devise installの前に再起動をしていなかったのではないか？
この中で結構問題があると思われるのは Versions of Safari and embedded browsers on MacOS 10.14 and all browsers on iOS 12. These versions will erroneously treat cookies marked with SameSite=None as if they were marked SameSite=Strict. This bug has been fixed on newer versions of iOS and MacOS
です。
現時点(2020/2/27)でiOS 12、MacOS 10.14はそれほど古いバージョンではなく使用しているユーザーも多いと思われます。このユーザーに対してはSameSite=Noneと設定しているとSameSite=Strictと同じ挙動をするそうです。
対応するとしたらブラウザによってcookieを書き換える必要がありそうです。
# -*- encoding: binary -*-# TODO: rack2.1.0以降だとsamesite=Noneの設定が入っているのでソースファイルごと削除するmoduleRack# Rack::Utils contains a grab-bag of useful methods for writing web# applications adopted from all kinds of Ruby libraries.moduleUtilsdefadd_cookie_to_header(header,key,value)casevaluewhenHashdomain="; domain=#{value[:domain]}"ifvalue[:domain]path="; path=#{value[:path]}"ifvalue[:path]max_age="; max-age=#{value[:max_age]}"ifvalue[:max_age]# There is an RFC mess in the area of date formatting for Cookies. Not# only are there contradicting RFCs and examples within RFC text, but# there are also numerous conflicting names of fields and partially# cross-applicable specifications.## These are best described in RFC 2616 3.3.1. This RFC text also# specifies that RFC 822 as updated by RFC 1123 is preferred. That is a# fixed length format with space-date delimited fields.## See also RFC 1123 section 5.2.14.## RFC 6265 also specifies "sane-cookie-date" as RFC 1123 date, defined# in RFC 2616 3.3.1. RFC 6265 also gives examples that clearly denote# the space delimited format. These formats are compliant with RFC 2822.## For reference, all involved RFCs are:# RFC 822# RFC 1123# RFC 2109# RFC 2616# RFC 2822# RFC 2965# RFC 6265expires="; expires="+rfc2822(value[:expires].clone.gmtime)ifvalue[:expires]secure="; secure"ifvalue[:secure]httponly="; HttpOnly"if(value.key?(:httponly)?value[:httponly]:value[:http_only])same_site=casevalue[:same_site]whenfalse,nilnilwhen:none,'None',:None'; SameSite=None'.freezewhen:lax,'Lax',:Lax'; SameSite=Lax'.freezewhentrue,:strict,'Strict',:Strict'; SameSite=Strict'.freezeelseraiseArgumentError,"Invalid SameSite value: #{value[:same_site].inspect}"endvalue=value[:value]endvalue=[value]unlessArray===valuecookie="#{escape(key)}=#{value.map{|v|escapev}.join('&')}#{domain}"\"#{path}#{max_age}#{expires}#{secure}#{httponly}#{same_site}"caseheaderwhennil,''cookiewhenString[header,cookie].join("\n")whenArray(header+[cookie]).join("\n")elseraiseArgumentError,"Unrecognized cookie header value. Expected String, Array, or nil, got #{header.inspect}"endendmodule_function:add_cookie_to_headerendend
Deprecation warning: Expected string default value for '--test-framework'; got false (boolean).
This will be rejected in the future unless you explicitly pass the options `check_default_type: false` or call `allow_incompatible_default_type!` in your code
You can silence deprecations warning by setting the environment variable THOR_SILENCE_DEPRECATION.
Country.all# => returns all Country objectsCountry.count# => returns the length of the .data arrayCountry.first# => returns the first country objectCountry.last# => returns the last country objectCountry.find1# => returns the first country object with that idCountry.find[1,2]# => returns all Country objects with ids in the arrayCountry.find:all# => same as .allCountry.find:all,args# => the second argument is totally ignored, but allows it to play nicely with ARCountry.find_by_id1# => find the first object that matches the idCountry.find_by_name"foo"# => returns the first object matching that nameCountry.find_all_by_name"foo"# => returns an array of the objects with matching namesCountry.find_by_id_and_name1,"Germany"# => returns the first object matching that id and nameCountry.find_all_by_id_and_name1,"Germany"# => returns an array of objects matching that name and id
使えるインスタンスメソッド
Country#id # => returns the id or nil
Country#id= # => sets the id attribute
Country#quoted_id # => returns the numeric id
Country#to_param # => returns the id as a string
Country#new_record? # => returns true if is not part of Country.all, false otherwise
Country#readonly? # => true
Country#hash # => the hash of the id (or the hash of nil)
Country#eql? # => compares type and id, returns false if id is nil
$rails g devise:install
(省略)
===============================================================================
Some setup you must do manually if you haven't yet:
1. Ensure you have defined default url options in your environments files. Here
is an example of default_url_options appropriate for a development environment
in config/environments/development.rb:
config.action_mailer.default_url_options = { host: 'localhost', port: 3000 }
In production, :host should be set to the actual host of your application.
2. Ensure you have defined root_url to *something* in your config/routes.rb.
For example:
root to: "home#index"
3. Ensure you have flash messages in app/views/layouts/application.html.erb.
For example:
<p class="notice"><%= notice %></p>
<p class="alert"><%= alert %></p>
4. You can copy Devise views (for customization) to your app by running:
rails g devise:views
===============================================================================
# frozen_string_literal: trueclassDeviseCreateUsers<ActiveRecord::Migration[5.2]defchangecreate_table:usersdo|t|## Database authenticatablet.string:email,null: false,default: ""t.string:encrypted_password,null: false,default: ""## Recoverablet.string:reset_password_tokent.datetime:reset_password_sent_at## Rememberablet.datetime:remember_created_at## Trackablet.integer:sign_in_count,default: 0,null: falset.datetime:current_sign_in_att.datetime:last_sign_in_att.string:current_sign_in_ipt.string:last_sign_in_ip## Confirmablet.string:confirmation_tokent.datetime:confirmed_att.datetime:confirmation_sent_att.string:unconfirmed_email# Only if using reconfirmable## Lockablet.integer:failed_attempts,default: 0,null: false# Only if lock strategy is :failed_attemptst.string:unlock_token# Only if unlock strategy is :email or :botht.datetime:locked_att.timestampsnull: falseendadd_index:users,:email,unique: trueadd_index:users,:reset_password_token,unique: trueadd_index:users,:confirmation_token,unique: trueadd_index:users,:unlock_token,unique: trueendend
classUser<ApplicationRecord# Include default devise modules. Others available are:# :confirmable, :lockable, :timeoutable and :omniauthabledevise:database_authenticatable,:registerable,:recoverable,:rememberable,:trackable,:validatable,:confirmable,:lockable,:timeoutableend
classUser<ApplicationRecordhas_many:books# Include default devise modules. Others available are:# :confirmable, :lockable, :timeoutable and :omniauthabledevise:database_authenticatable,:registerable,:recoverable,:rememberable,:trackable,:validatable,:confirmable,:lockable,:timeoutableend
