Controller 代码
class CveController < ApplicationController
def index
@cves = Cve.all
end
def show
@cve = Cve.find_by(cve_id: params[:cve_id])
end
end
异常信息
Showing app/views/cve/index.html.erb where line #3 raised:
no implicit conversion of nil into String
Extracted source (around line #3):

Cve#index

Find me in app/views/cve/index.html.erb

<% @cves.each do |cve| %>

<%= cve.cve_id %>
<%= cve.summary %>
Rails.root: /Users/admin/RubyProjects/xx-api
Application Trace | Framework Trace | Full Trace
app/views/cve/index.html.erb:3
Request
Parameters:
None
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Response
Headers:
None