Q&A
前提・実現したいこと
現在、instagramのような画像投稿WEBアプリケーションを作成しています。
投稿した画像が現在1枚ずつトップページに表示されている状態なのですが、
上から順に2枚ずつ表示されるように変更したいのです。
どこを操作すれば変更すれば良いのでしょうか！？
HTML,CSSはサンプルサイトから引用しており、下記コードの記述内容が理解出来ていないです。
画像が２つ投稿できるようになったら、CSSを整えます。
発生している問題・エラーメッセージ
新規投稿した画像は表示されるが、Veiwが思うように実装出来ない。 理解出来たこと、HTMLがブラウザ上に表示させるための言語、CSSで画像の余白や文字の色を決める。
該当のソースコード
Ruby on rails app/veiws/layolers/application.html.erb <!DOCTYPE html> <html> <head> <title>NF</title> <%= csrf_meta_tags %> <%= csp_meta_tag %> <link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/3.18.1/build/cssreset/cssreset-min.css"> <%= stylesheet_link_tag 'application', media: 'all', 'data-turbolinks-track': 'reload' %> <%= javascript_pack_tag 'application', 'data-turbolinks-track': 'reload' %> </head> <body> <header class="header"> <div class="header__bar row"> <h1 class="grid-6"><a href="/">NF</a></h1> <% if user_signed_in? %> <div class="user_nav grid-6"> <span><%= current_user.nickname %> <ul class="user__info"> <li> <%= link_to "マイページ", "/users/#{current_user.id}"%> <%= link_to "ログアウト", destroy_user_session_path, method: :delete %> </li> </ul> </span> <%= link_to "投稿する", new_item_path, class: "post" %> </div> <% else %> <div class="grid-6"> <%= link_to "ログイン", new_user_session_path, class: "post" %> <%= link_to "新規登録", new_user_registration_path, class: "post" %> </div> <% end %> </div> </div> </header> <%= yield %> <footer> <p> Copyright NF 2020. </p> </footer> </body> </html> app/veiws/items/index.html.erb <div class="contents row"> <% @items.each do |item| %> <%= render partial: "item", locals: { item: item } %> <% end %> </div> app/veiws/items/_item.html.erb <div class="content_post" style="background-image: url(<%= item.image %>);"> <div class="more"> <span><%= image_tag 'arrow_top.png' %></span> <ul class="more_list"> <li> <%= link_to '詳細', item_path(item.id), method: :get %> </li> <li> <% if user_signed_in? && current_user.id == item.user_id%> <%= link_to '編集', edit_item_path(item.id), method: :get %> </li> <li> <%= link_to '削除', item_path(item.id), method: :delete %> </li> <% end %> </ul> </div> <p><%= item.text %></p> <span class="name"> <a href="/users/<%= item.user.id %>"> <span>投稿者</span><%= item.user.nickname%> </a> </span> </div> app/assets/stylesheets/application.css /* * This is a manifest file that'll be compiled into application.css, which will include all the files * listed below. * * Any CSS and SCSS file within this directory, lib/assets/stylesheets, or any plugin's * vendor/assets/stylesheets directory can be referenced here using a relative path. * * You're free to add application-wide styles to this file and they'll appear at the bottom of the * compiled file so the styles you add here take precedence over styles defined in any other CSS/SCSS * files in this directory. Styles in this file should be added after the last require_* statement. * It is generally better to create a new file per style scope. * *= require_tree . *= require_self */ *{ box-sizing: border-box; } app/assets/stylesheets/stylesheet.css @charset "UTF-8"; /*! normalize.css v2.1.3 | MIT License | git.io/normalize */ /* ========================================================================== * HTML5 display definitions * ========================================================================== */ /* * Correct `block` display not defined in IE 8/9. */ article, aside, details, figcaption, figure, footer, header, hgroup, main, nav, section, summary { display: block; } /* * Correct `inline-block` display not defined in IE 8/9. */ audio, canvas, video { display: inline-block; } /* * Prevent modern browsers from displaying `audio` without controls. * Remove excess height in iOS 5 devices. */ audio:not([controls]) { display: none; height: 0; } /* * Address `[hidden]` styling not present in IE 8/9. * Hide the `template` element in IE, Safari, and Firefox < 22. */ [hidden], template { display: none; } /* ========================================================================== * Base * ========================================================================== */ /* * 1. Set default font family to sans-serif. * 2. Prevent iOS text size adjust after orientation change, without disabling * user zoom. */ html { font-family: sans-serif; /* 1 */ -ms-text-size-adjust: 100%; /* 2 */ -webkit-text-size-adjust: 100%; /* 2 */ } /* * Remove default margin. */ body { margin: 0; } /* ========================================================================== * Links * ========================================================================== */ /* * Remove the gray background color from active links in IE 10. */ a { background: transparent; } /* * Address `outline` inconsistency between Chrome and other browsers. */ a:focus { outline: thin dotted; } /* * Improve readability when focused and also mouse hovered in all browsers. */ a:active, a:hover { outline: 0; } /* ========================================================================== * Typography * ========================================================================== */ /* * Address variable `h1` font-size and margin within `section` and `article` * contexts in Firefox 4+, Safari 5, and Chrome. */ h1 { font-size: 2em; margin: 0.67em 0; } /* * Address styling not present in IE 8/9, Safari 5, and Chrome. */ abbr[title] { border-bottom: 1px dotted; } /* * Address style set to `bolder` in Firefox 4+, Safari 5, and Chrome. */ b, strong { font-weight: bold; } /* * Address styling not present in Safari 5 and Chrome. */ dfn { font-style: italic; } /* * Address differences between Firefox and other browsers. */ hr { -moz-box-sizing: content-box; box-sizing: content-box; height: 0; } /* * Address styling not present in IE 8/9. */ mark { background: yellow; color: black; } /* * Correct font family set oddly in Safari 5 and Chrome. */ code, kbd, pre, samp { font-family: monospace, serif; font-size: 1em; } /* * Improve readability of pre-formatted text in all browsers. */ pre { white-space: pre-wrap; } /* * Set consistent quote types. */ q { quotes: "“""”""‘""’"; } /* * Address inconsistent and variable font size in all browsers. */ small { font-size: 80%; } /* * Prevent `sub` and `sup` affecting `line-height` in all browsers. */ sub, sup { font-size: 75%; line-height: 0; position: relative; vertical-align: baseline; } sup { top: -0.5em; } sub { bottom: -0.25em; } /* ========================================================================== * Embedded content * ========================================================================== */ /* * Remove border when inside `a` element in IE 8/9. */ img { border: 0; } /* * Correct overflow displayed oddly in IE 9. */ svg:not(:root) { overflow: hidden; } /* ========================================================================== * Figures * ========================================================================== */ /* * Address margin not present in IE 8/9 and Safari 5. */ figure { margin: 0; } /* ========================================================================== * Forms * ========================================================================== */ /* application.cssはこのような流れです。
試したこと
HTMLとCSSの構造が理解
補足情報（FW/ツールのバージョンなど）
ここにより詳細な情報を記載してください。
回答1件
0
ベストアンサー
下記コードの記述内容が理解出来ていないです。
そうであるならば、機能的に何がしたいかという質問より、
理解できてない箇所のコードの意味を問う質問をされるべきですね。
一応今回の質問に対する回答は以下です。
erb
1<div class="contents row"> 2 <%# 2つずつ each で回す %> 3 <% @items.each_slice(2) do |item1, item2| %> 4 <%# 以下2つを横並べにする %> 5 <%= render partial: "item", locals: { item: item1 } %> 6 <%= render partial: "item", locals: { item: item2 } if item2 %> 7 <% end %> 8</div>
とか
erb
1<div class="contents row"> 2 <% @items.each do |item| %> 3 <%# .col が用意されてるかわかりませんが... %> 4 <div class="col-6"> 5 <%= render partial: "item", locals: { item: item } %> 6 </div> 7 <% end %> 8</div>
みたいな感じで実現できそうです。
投稿2020/10/23 08:41
編集2020/10/23 08:45
総合スコア2349
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