快速启动实验室事件管理器：语法错误、意外':'

Question

我正在做JumpStart Labs事件管理器，特别是每周的时间/天目标，我遇到了麻烦。当我通过Terminal运行以下代码时，它给了我以下错误[EDIT]:

austin-winslows-macbook-4:event_manager HypnoBoy$ ruby event_manager.rb
event_manager.rb:8: odd number list for Hash
...vent_attendees.csv', {headers: true, header_converters: :sym...
                          ^
event_manager.rb:8: syntax error, unexpected ':', expecting '}'
...vent_attendees.csv', {headers: true, header_converters: :sym...
                          ^
event_manager.rb:8: Can't assign to true
...ttendees.csv', {headers: true, header_converters: :symbol})
                          ^
event_manager.rb:8: syntax error, unexpected ':', expecting '='
...ders: true, header_converters: :symbol})

我把我的代码贴在下面，我正在寻找建议!语法上的某些地方显然有问题，但到目前为止，我一直按照步骤进行操作，没有遇到任何问题，所以我不确定该去哪里查看。任何帮助将是一个很大的帮助，谢谢!

require 'csv'
require 'sunlight/congress'
require 'erb'
require 'date'

Sunglight::Congress.api_key = "e179a6973728c4dd3fb1204283aaccb5"
contents = CSV.open('event_attendees.csv', {headers: true, header_converters: :symbol})

def clean_zipcode(zipcode)
zipcode.to_s.rjust(5,"0")[0..4]
end

def clean_phone(number)
number.to_s.rjust(10,"0")[0..4] 
end

def legislators_by_zipcode(zipcode)
Sunglight::Congress::Legislator.by_zipcode(zipcode)
end

def peak_days
time = row[:regdate]
day_array = []
time.each { |t|
    array << Datetime.strptime(t, '%m/%d/%Y %H:%M').wday }
end
def peak_hours
time = row[:regdate]
hr_array = []
time.each { |t|
        array << DateTime.strptime(t, '%m/%d/%Y %H:%M').hour }
array
end

def save_thanks_you_letters(id,form_letter)
Dir.mkdir("output") unless Dir.exists? "output"
filename = "output/thanks_#{id}.html"
File.open(filename, 'w') { |file|
    file.puts form_letter} 
end

puts "EventManager Initialized!"
template_letter = File.read "form_letter.erb"
erb_template = ERB.new template_letter
contents.each { |row|
id = row[0]
name = row[:first_name]
zipcode = clean_zipcode(row[:zipcode])
phone = clean_phone(row[:homephone]) 
legislators = legislators_by_zipcode(zipcode)
form_letter = erb_template.result(binding)
save_thank_you_letters(id,form_letter)
}

Answer 1

从文档CSV::open，您正在使用的结构:

open( filename, options = Hash.new )

所以你行:

contents = CSV.open 'event_attendees.csv', headers: true, header_converters: :symbol是错误的，因为从第二个参数开始，它期待一个Hash。因此将其更改为:

contents = CSV.open('event_attendees.csv', {headers: true, header_converters: :symbol})

Answer 2

我今天完成了这个练习。我不需要改变contents = CSV。开放的线。导致我错误的原因是Excel文件中没有格式化日期。我在Excel中将日期列格式化为mm/dd/yyyy hh:mm。此外，在"%m/%d/%Y %H:% m"字符串中，大写似乎也很重要——我使用了小写的"Y"。

这是我第一次锻炼的样子:

# Iteration: Time Targeting
contents = CSV.open "event_attendees.csv", headers: true, header_converters: :symbol
regtimes = Array.new(25, 0)
contents.each do |row|
  reghour = DateTime.strptime(row[:regdate],'%m/%d/%y %H:%M').hour
  regtimes[reghour] += 1
end