mongoid

问题 I am getting this weird error while running cucumber test: ERROR Mongo::OperationFailure: Database command 'filemd5' failed: {"errmsg"=>"exception: best guess plan requested, but scan and order required: query: { files_id: ObjectId('4d1abab3a15c84139c00006e') } order: { files_id: 1, n: 1 } choices: { $natural: 1 } ", "code"=>13284, "ok"=>0.0} I have a list of similar scenarios, where first scenario passes but all the other following scenario fails. I searched for it and I found that there is

问题 I am getting this weird error while running cucumber test: ERROR Mongo::OperationFailure: Database command 'filemd5' failed: {"errmsg"=>"exception: best guess plan requested, but scan and order required: query: { files_id: ObjectId('4d1abab3a15c84139c00006e') } order: { files_id: 1, n: 1 } choices: { $natural: 1 } ", "code"=>13284, "ok"=>0.0} I have a list of similar scenarios, where first scenario passes but all the other following scenario fails. I searched for it and I found that there is

问题 I am getting this weird error while running cucumber test: ERROR Mongo::OperationFailure: Database command 'filemd5' failed: {"errmsg"=>"exception: best guess plan requested, but scan and order required: query: { files_id: ObjectId('4d1abab3a15c84139c00006e') } order: { files_id: 1, n: 1 } choices: { $natural: 1 } ", "code"=>13284, "ok"=>0.0} I have a list of similar scenarios, where first scenario passes but all the other following scenario fails. I searched for it and I found that there is

问题 Using mongoid, how to delete the first 10000 documents where the error_message field is: Error: not found . Native mongo queries will be happily accepted 回答1: MongoDB support limit on delete. The delete command removes documents from a collection. A single delete command can contain multiple delete specifications { delete: <collection>, deletes: [ { q : <query>, limit : <integer>, collation: <document> }, { q : <query>, limit : <integer>, collation: <document> }, { q : <query>, limit :

问题 Using mongoid, how to delete the first 10000 documents where the error_message field is: Error: not found . Native mongo queries will be happily accepted 回答1: MongoDB support limit on delete. The delete command removes documents from a collection. A single delete command can contain multiple delete specifications { delete: <collection>, deletes: [ { q : <query>, limit : <integer>, collation: <document> }, { q : <query>, limit : <integer>, collation: <document> }, { q : <query>, limit :

问题 I tried @posts = Post.page(params[:page]).per_page(10) and @posts = Post.paginate(:page => 1, :per_page => 10) but neither method works undefined method `page' for Post:Class undefined method `paginate' for Post:Class How do you do pagination with mongoid? 回答1: You should use Kaminari https://github.com/amatsuda/kaminari 回答2: This works fine for me: @posts = Post.paginate(:page => 1, :limit => 10).desc(:_id) desc(:_id) is added so that latest posts could be listed first. 回答3: Still using will

问题 I tried @posts = Post.page(params[:page]).per_page(10) and @posts = Post.paginate(:page => 1, :per_page => 10) but neither method works undefined method `page' for Post:Class undefined method `paginate' for Post:Class How do you do pagination with mongoid? 回答1: You should use Kaminari https://github.com/amatsuda/kaminari 回答2: This works fine for me: @posts = Post.paginate(:page => 1, :limit => 10).desc(:_id) desc(:_id) is added so that latest posts could be listed first. 回答3: Still using will

问题 I tried @posts = Post.page(params[:page]).per_page(10) and @posts = Post.paginate(:page => 1, :per_page => 10) but neither method works undefined method `page' for Post:Class undefined method `paginate' for Post:Class How do you do pagination with mongoid? 回答1: You should use Kaminari https://github.com/amatsuda/kaminari 回答2: This works fine for me: @posts = Post.paginate(:page => 1, :limit => 10).desc(:_id) desc(:_id) is added so that latest posts could be listed first. 回答3: Still using will

问题 I tried @posts = Post.page(params[:page]).per_page(10) and @posts = Post.paginate(:page => 1, :per_page => 10) but neither method works undefined method `page' for Post:Class undefined method `paginate' for Post:Class How do you do pagination with mongoid? 回答1: You should use Kaminari https://github.com/amatsuda/kaminari 回答2: This works fine for me: @posts = Post.paginate(:page => 1, :limit => 10).desc(:_id) desc(:_id) is added so that latest posts could be listed first. 回答3: Still using will

问题 I tried @posts = Post.page(params[:page]).per_page(10) and @posts = Post.paginate(:page => 1, :per_page => 10) but neither method works undefined method `page' for Post:Class undefined method `paginate' for Post:Class How do you do pagination with mongoid? 回答1: You should use Kaminari https://github.com/amatsuda/kaminari 回答2: This works fine for me: @posts = Post.paginate(:page => 1, :limit => 10).desc(:_id) desc(:_id) is added so that latest posts could be listed first. 回答3: Still using will