ruby-on-rails-4

问题 I am writing an API to find users by email_id . I am getting an error while sending the email as a parameter. Routes.rb: Rails.application.routes.draw do namespace :api do resources :users, only: [:show, :index] , param: :email end end When I am sending the email as a parameter then I got an error. The URL is http://localhost:3000/api/users/test@abc.com: ActiveRecord::RecordNotFound in Api::UsersController#show Couldn't find User with 'id'={:email=>"test@abc"} This is my routes path: api

问题 I am using the following code <%= f.date_select 'event_date', selected: Date.today, :start_year => Date.today.year, :end_year => Date.today.year + 1 %> I want to ban people from choosing data at a min of 5 days from now. and max of 1 year max. How can i set the date and month? Or should i do this in model validation? 回答1: From this answer: Rails 4 date_field, min and max year? You should be able to give the min and max dates: f.date_select 'event_date', selected: Date.today, min: 5.days.ago,

问题 I am using the following code <%= f.date_select 'event_date', selected: Date.today, :start_year => Date.today.year, :end_year => Date.today.year + 1 %> I want to ban people from choosing data at a min of 5 days from now. and max of 1 year max. How can i set the date and month? Or should i do this in model validation? 回答1: From this answer: Rails 4 date_field, min and max year? You should be able to give the min and max dates: f.date_select 'event_date', selected: Date.today, min: 5.days.ago,

问题 I am using Rails 4.2 and the document states that the fingerprint is an md5 digest calculated based on the content of the compiled file. If we take a file lets say application-4c697a2e67b1a921abbdc1f753c465d8.js , 4c697a2e67b1a921abbdc1f753c465d8 is the md5 digest. The problem is that we are never able to get the same value by generating md5 from the content of the same file. I have read somewhere that this fingerprint is not only based on the file but also affected by the environment along

问题 I am using Rails 4.2 and the document states that the fingerprint is an md5 digest calculated based on the content of the compiled file. If we take a file lets say application-4c697a2e67b1a921abbdc1f753c465d8.js , 4c697a2e67b1a921abbdc1f753c465d8 is the md5 digest. The problem is that we are never able to get the same value by generating md5 from the content of the same file. I have read somewhere that this fingerprint is not only based on the file but also affected by the environment along

问题 In the below case, i am trying to use strong parameters. I want to require email_address, password and permit remember_me fields. But using like below it only allows the LAST line in the method Ex:- In below case it only take params.permit(:remember_me) private def registration_params params.require(:email_address) params.require(:password) params.permit(:remember_me) end Another Ex:- In this below case, if i rearrange it like below it will take only params.require(:email_address) where am i

问题 In the below case, i am trying to use strong parameters. I want to require email_address, password and permit remember_me fields. But using like below it only allows the LAST line in the method Ex:- In below case it only take params.permit(:remember_me) private def registration_params params.require(:email_address) params.require(:password) params.permit(:remember_me) end Another Ex:- In this below case, if i rearrange it like below it will take only params.require(:email_address) where am i

问题 In the below case, i am trying to use strong parameters. I want to require email_address, password and permit remember_me fields. But using like below it only allows the LAST line in the method Ex:- In below case it only take params.permit(:remember_me) private def registration_params params.require(:email_address) params.require(:password) params.permit(:remember_me) end Another Ex:- In this below case, if i rearrange it like below it will take only params.require(:email_address) where am i

问题 I know that Heroku's dyno gets refreshed each time a deploy is made so is there anyway I can have my files persistent or there's no other way but use services like amazon S3? I use paperclip to handle file upload and most of the files will be in pdf. 回答1: It would be best to use S3 or another service. Ephemeral filesystem Each dyno gets its own ephemeral filesystem, with a fresh copy of the most recently deployed code. During the dyno’s lifetime its running processes can use the filesystem as

问题 I know that Heroku's dyno gets refreshed each time a deploy is made so is there anyway I can have my files persistent or there's no other way but use services like amazon S3? I use paperclip to handle file upload and most of the files will be in pdf. 回答1: It would be best to use S3 or another service. Ephemeral filesystem Each dyno gets its own ephemeral filesystem, with a fresh copy of the most recently deployed code. During the dyno’s lifetime its running processes can use the filesystem as