Set up the database at this point (C:\foobar\config\database.yml) and make sure that the database is established.
At this point, http://localhost:3000/articles can browse, add some data (such as 10), prepare for pagination.
The plugin version of the old Will_paginate does not have to be loaded explicitly in the Rails program, because rails automatically executes the init.rb file in the plugin directory when it starts, and the new Will_pagiante is in gem form, and there is no such mechanism. So it needs to be loaded explicitly in the Rails program:
Rails::initializer.run do |config|
Config.gem ' Mislav-will_paginate ',: Version => ' ~> 2.3.2 ',: Lib => ' Will_paginate ',
: Source => ' http://gems.github.com '
At this point, restart the Webrick, and then execute the following command to install the appropriate gem:
The installation is complete.
Modify the controller's index method, plus code similar to the following:
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