ruby-datamapper
0
DataObjects::DataError: Reader is not initialized, Rails 3 Ruby 1.9.2 MySQL Production
I seem to have a problem when attempting to run my Rails app on an Ubuntu server. It works perfectly on my development machine (Mac OS X Ruby 1.9.2 p180). I\'m using DataMapper as my ORM which is caus[详细]
2023-03-04 07:05 分类：问答Ruby on Rails app on Google App Engine
Can anyone give me some pointers on how I could deploy my rails app to GAE? I\'ve been reading about it, but it seems to be a fairly complicated task.[详细]
2023-01-08 01:44 分类：问答Hide input="image" if image src not found
I\'m using the following JavaScript function to hide images on my webpage in the event that the source image is not found:[详细]
2022-12-20 17:51 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......