{"id":26041,"date":"2016-12-01T11:00:44","date_gmt":"2016-12-01T11:00:44","guid":{"rendered":"https:\/\/dev.railscarma.com\/create-search-friendly-urls-rails\/"},"modified":"2024-01-10T10:51:03","modified_gmt":"2024-01-10T10:51:03","slug":"skapa-sokvanliga-urls-skenor","status":"publish","type":"post","link":"https:\/\/www.railscarma.com\/sv\/blogg\/tekniska-artiklar\/skapa-sokvanliga-urls-skenor\/","title":{"rendered":"Hur man skapar s\u00f6kv\u00e4nliga webbadresser i Rails"},"content":{"rendered":"
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\n\t\t\t\t\t\t\t\t\tDisplay IDs in your URLs can be terrible and wasteful for SEO. In this blog entry, I will demonstrate to you how you can utilize slugs to make your URLs more relevant to the page content. In the first place, we will utilize an implicit arrangement (superseding the to_param strategy) to change the URLs and a while later, we will utilize a gem called friendly_id to produce slugs and keep up a past filled with these slugs. So that search engines index your web pages.\n\nFor example: http:\/\/www.exaple.com\/blogs\/1<\/strong> till http:\/\/www.exaple.com\/blogs\/blog-name<\/strong>\n\nH\u00e4r skapar jag ett prov R\u00e4ls5<\/strong> app med inl\u00e4ggsmodell f\u00f6r att illustrera exakt hur det kommer att fungera med de vackra webbadresserna.\n
skenor g st\u00e4llningspost title:string publicerad:boolean<\/code><\/pre>\nspringa skenor db:migrera<\/strong>\n\noch skapa n\u00e5gra exempelinl\u00e4gg (http:\/\/localhost:3000\/posts\/new)\n\napp\/models\/post.rb<\/strong>\n
def to_param title.parameterize end<\/code><\/pre>\n<\/a>\n\nAll the links will be changed to pretty URLs once you add the above method to your model. Please check on index page where it lists all the posts. However, when you click on that it will show you error page.\n\nPost.find method cannot find the record with id which we are passing in URL. We need to create slugs for the above posts in our db for that model.\n\nLet\u2019s add migration file for the slug\n
rails g migration AddSlugToPosts slug:string<\/code><\/pre>\n\u00d6ppna den ovan n\u00e4mnda migreringsfilen och l\u00e4gg till uniq index till den sulg. Slug m\u00e5ste vara unik.\n
class AddSlugToPosts < ActiveRecord::Migration[5.0] def change add_column :posts, :slug, :string add_index :posts, :slug, unique: true end end<\/code><\/pre>\nspringa db:migrera<\/strong>\n\nNow, we have to change our show action db query to find_by instead of find method. Because we need to fetch the results based on slug.\n\nChange our set_post method to\n
def set_post Post.find_by_slug(params[:id]) slut<\/code><\/pre>\nNu fungerar det som f\u00f6rv\u00e4ntat med de vackra webbadresserna. Vad h\u00e4nder om tv\u00e5 poster har samma URL eftersom b\u00e5da dessa poster har samma namn. Eftersom .find_by alltid h\u00e4mtar den f\u00f6rsta posten. F\u00f6r att l\u00f6sa detta, innan vi sparar slug, kan vi kombinera post-id med slug s\u00e5 som det n\u00e4mns nedan:\n
def add_slug "#{id}-#{title.parameterize}" slut<\/code><\/pre>\nSo, it will generate like \u201c1-blog-name\u201d. We have a gem called friendly_gem to simply take care of all the above-mentioned scenarios.\n\nFeel free to remove the above mentione code from the sample app because everything is managed by the gem.\n\nFriendly_id p\u00e4rla<\/strong>(Rails 5)\n\nAdd the latest gem from rubygem web to the gemfile and run bundle\n
gem 'friendly_id', '~> 5.1'<\/code><\/pre>\n
rails genererar friendly_id<\/code><\/pre>\nKommandot ovan genererar en initialiseringsfil och en migreringsfil.\n
k\u00f6r db:migrate<\/code><\/pre>\nSkapa n\u00e5gra poster och \u00e4ndra v\u00e5r set_post-metod till det s\u00e4tt som n\u00e4mns nedan. Alla gamla poster m\u00e5ste \u00e5terskapas, om du har n\u00e5gra.\n
def set_post Post.friendly.find("Joe Schmoe".parameterize) slut<\/code><\/pre>\napp\/models\/post.rb<\/strong>\n
ut\u00f6ka FriendlyId friendly_id :slug_candidates, anv\u00e4nd: [:slugged, :finders, :history] def slug_candidates [ :title, [:title, :id] ] slut<\/code><\/pre>\nL\u00e4gg till slug-attribut till Post-modellen<\/strong>\n
skenor g AddSlugToPosts slug:string<\/code><\/pre>\n
add_column :posts, :slug, :string<\/code><\/pre>\n
add_index :posts, :slug, unikt: sant<\/code><\/pre>\n\nUppdaterar inl\u00e4ggets rubrik<\/strong>\nSlug uppdateras automatiskt n\u00e4r du uppdaterar title-attributet. Men det \u00e4r inte en bra praxis att uppdatera sniglarna f\u00f6r ofta. Applikationen kan skapa fel n\u00e4r du klickar p\u00e5 n\u00e5gon av de bokm\u00e4rkta webbadresserna eftersom n\u00e5gon kan ha gamla bokm\u00e4rken. Vi m\u00e5ste f\u00f6rhindra detta genom att l\u00e4gga till historiksymbol till anv\u00e4ndningsalternativet i din Post-modell.\n
def slug_candidates [ :titel, [:titel, :id] ] slut<\/code><\/pre>\nslug_candidates feature was added in friendlyId 5. It allows us to tell the friendly id gem, what needs to be done in case of duplicate slugs.\n\nThe code mentioned above advises FriendlyId that it needs to utilize the slug_candidates technique to make the slug uniq. It will attempt the rundown right from the beginning to the end, so in the case above, it will attempt to produce the slug first utilizing the title, and afterwards, if a post by that title already exists, it will attempt to fix the ID again.\n\nSlugs are the primary things read by search engines. That ought to, as of now, give you an idea on how essential they are. To utilize a slug, first add the slug alternative to the friendly_id assistant in the Post Model.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t  
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