Thomastar

csv 导入编码的问题.

Thomastar — Mon, 09 Jul 2018 17:17:35 +0800

csv_text = params[:csv].tempfile
# encoding
# csv = File.read(csv_text.path, encoding: 'utf-16')
csv = File.read(csv_text.path, encoding: "UTF-16LE:UTF-8")
puts '==encoding==='
p csv.encoding
p csv

csv = CSV.parse(csv, encoding: "UTF-16LE:UTF-8")
csv.each_with_index do |item, index|
 puts '==='
 p item
end

undefined method `reopen' for "streamed":String

Thomastar — Fri, 22 Jun 2018 11:31:41 +0800

核心源码

exl = Axlsx::Package.new
exl.workbook.add_worksheet(:name => "Basic Worksheet") do |sheet|
  sheet.add_row ["公司名称", "客户类型", "店铺联系人", "店铺联系人电话", "地址", "跟进状态", "备注", "业务员", "联系人名称", "联系人电话", "联系人手机"]
  @cards.each do |card|
    sheet.add_row [
      card.company_name, 
      card.customer_type,
      card.shop_contact,
      card.shop_phone,
      card.address,
      card.state,
      card.remark,
      card.salesmen,
      card.name,
      card.tel,
      card.phone
      ]
  end
end
exl.use_shared_strings = true
# exl.serialize('simple.xlsx')
send_data exl.to_stream.read, type: "application/xlsx", filename: "bussiness_card.xlsx"

错误：undefined method `reopen' for "streamed":String

初步原因判断是 rubyzip 版本的问题，后面解决了还是报错

gemfile:
gem 'rubyzip', '>= 1.0.0'
gem 'zip-zip'
gem 'axlsx', '~> 2.0.1'
gem "roo"

gemfile.lock
    axlsx (2.0.1)
      htmlentities (~> 4.3.1)
      nokogiri (>= 1.4.1)
      rubyzip (~> 1.0.0)
    roo (1.13.2)
      nokogiri
      rubyzip
      spreadsheet (> 0.6.4)

如何在 Rails 执行 Linux 的命令

Thomastar — Tue, 29 May 2018 17:08:07 +0800

如何在 rails 执行 linux 的命令

现在问题： linux 命令：ffmpeg -i 1.mp4 -y -f image2 -t 0.001 -s 352x240 a.jpg 如何在 rails 执行

如何在 post 的时候带上证书？

Thomastar — Tue, 17 Apr 2018 14:56:21 +0800

def postXmlHttp(uri, xml, use_ssl= true)
  uri = URI.parse(uri)
    Net::HTTP.start(uri.host,uri.port,use_ssl:use_ssl) do |http|
        request  = Net::HTTP::Post.new(uri.path)
        request.body = xml
        response = http.request(request)
        response.body
  end
end

minimagick 支持写文字到图片上去么？

Thomastar — Sat, 03 Feb 2018 15:41:43 +0800

或则换一个 gem 类似 php 的 GD 库那样子

Docker + Rails + MySQL 利用 Docker 把 SQL 数据导进去后，ActiveRecord::PendingMigrationError

Thomastar — Tue, 26 Dec 2017 10:01:16 +0800

Migrations are pending. To resolve this issue, run: bin/rake db:migrate RAILS_ENV=development

有没有大神能解决，而运行 bin/rake db:migrate RAILS_ENV=development 后，又各种 db:migrate 冲突

怎么能快速解决冲突的问题？

Nokogiri 怎么解析 post 过来的 XML (微信开发)

Thomastar — Tue, 28 Nov 2017 13:52:23 +0800

<xml>
  <ToUserName><![CDATA[toUser]]></ToUserName>
  <FromUserName><![CDATA[fromUser]]></FromUserName>
  <CreateTime>1348831860</CreateTime>
  <MsgType><![CDATA[text]]></MsgType>
  <Content><![CDATA[this is a test]]></Content>
  <MsgId>1234567890123456</MsgId>
</xml>

msg_type = Nokogiri::XML(request.body.read).xpath('//MsgType').text

@to_user_name = Nokogiri::XML(request.body.read).xpath('//ToUserName').text

@user_name = Nokogiri::XML(request.body.read).xpath('//FromUserName').text

msg_type 能获取到数据

@to_user_name 怎么为空的？

@user_name 怎么为空的？