问题描述
我的应用程序可以在本地环境（localhost：3000）上正常运行。它正在从我本地的postgres数据库中提取数据，但是我似乎没有更新生产环境。在我的页面上可以看到我的欢迎页面，但是当我单击导航时链接以查看另一个页面我遇到错误，我认为是因为该页面调用了数据库中找不到的数据。
I have my app working just fine on my local environment at localhost:3000. It is pulling data from my local postgres db, however I don't appear to be updating the production environment. My welcome page is viewable on my https://gcl.herokuapp.com page, but when I click the nav link to view another page I get an error, I'm assuming because that page calls on data from the db, which it cannot find.
我在做 $ rails db：migrate RAILS_ENV = production
我在终端中得到以下输出：
I get the following output in Terminal:
(0.2ms) SELECT pg_try_advisory_lock(3666737882978712990);
ActiveRecord::SchemaMigration Load (0.6ms) SELECT "schema_migrations".*
FROM "schema_migrations"
ActiveRecord::InternalMetadata Load (0.6ms) SELECT
"ar_internal_metadata".* FROM "ar_internal_metadata" WHERE "ar_internal_metadata"."key" = $1 LIMIT $2 [["key", :environment], ["LIMIT", 1]]
(0.2ms) BEGIN
SQL (1.9ms) UPDATE "ar_internal_metadata" SET "value" = $1, "updated_at" = $2 WHERE "ar_internal_metadata"."key" = $3 [["value", "production"], ["updated_at", 2017-03-31 10:42:57 UTC], ["key", "environment"]]
(0.4ms) COMMIT
(0.2ms) SELECT pg_advisory_unlock(3666737882978712990)
我的Gemfile中有gem'pg'
I have gem 'pg' in my Gemfile
我的database.yml如下：
My database.yml looks like:
default: &default
adapter: postgresql
pool: 5
timeout: 5000
development:
adapter: postgresql
database: postgresql-rectangular-42683
pool: 5
timeout: 5000
test:
adapter: postgresql
database: postgresql-rectangular-42683
pool: 5
timeout: 5000
production:
adapter: postgresql
database: postgresql-rectangular-42683
username: Simon
password: *************
pool: 5
timeout: 5000`
有什么想法吗？大约一天以来一直在尝试各种事情：（
Any thoughts? Been trying various things for about a day now :(
Simon
推荐答案
哈哈，两分钟后，我发现了问题所在，并且像往常一样这很简单，我需要运行 $ heroku运行rake db：seed 。
Haha, two mins later I've found what the problem was, and as usual it was a simple one. I needed to run $ heroku run rake db:seed.
尽管这似乎只是添加了表，因为我的行仍然显示为10000中的0
Although this only seems to have added the tables, as my rows still show as 0 of 10000
，我的页面仍无法在加载，但无法加载100％确定与数据库有关。
Also, my pages still don't load at https://gcl.herokuapp.com/articles but not 100% sure that's related to the db.
这篇关于本地发球有效，但似乎无法推动RAILS_ENV = production heroku的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！