使用sidekiq，wicked_pdf和haml rails生成PDF 4
[英]Generating PDF using sidekiq, wicked_pdf and haml rails 4
问题描述
So I am trying to generate a PDF in the background with Sidekiq. 
因此，我尝试使用Sidekiq在后台生成PDF。 I have followed the directions on their wiki but I keep running into a haml formatting error. 我已经按照他们Wiki上的指示进行操作，但是我一直遇到haml格式错误。 When I generate the same pdf template through normal methods I do not get any of these haml formatting errors and the pdf generates fine. 当我通过常规方法生成相同的pdf模板时，我没有遇到任何此类haml格式错误，并且pdf可以正常生成。 I am sure I'm missing something simple but, I just can't figure out what. 我确定我缺少一些简单的东西，但是，我只是想不出什么。 Code below: 代码如下：
Worker Code: 工人代码：
class GeneratePdf
include Sidekiq::Worker
sidekiq_options retry: false
def perform(id)
@report = Report.find(id)
av = ActionView::Base.new()
av.view_paths = ActionController::Base.view_paths
av.class_eval do
include Rails.application.routes.url_helpers
include ApplicationHelper
end
pdf = av.render template: 'quarterly_reports/show.pdf.haml',
locals: {@report => @report}
pdf = WickedPdf.new.pdf_from_string(
pdf,
header: {spacing: 10, html: {template: 'shared/qheader'}},
footer: {spacing: 10, html: {template: 'shared/qfooter'}}
)
save_path = Rails.root.join('public', "PDF-{Time.now.strftime('%Y%m%d')}.pdf")
File.open(save_path, 'wb') do |file|
file << pdf
end
end
end
So when the job fires Sidekiq spits out a formatting error from the second line of the page which is the following: 因此，当作业触发时，Sidekiq从页面的第二行吐出格式错误，如下所示：
= wicked_pdf_stylesheet_link_tag "application"
= wicked_pdf_javascript_include_tag "application", "jquery_nested_form", "chartkick"
After this it shows formatting issues which almost every line of haml in the view. 此后，它显示了视图中几乎每行haml的格式问题。 It does not show issues with the first line of the code which is the stylesheet link shown above. 它不会显示代码的第一行（即上面显示的样式表链接）的问题。 What am I doing wrong? 我究竟做错了什么？ Thanks in advance for your help! 在此先感谢您的帮助！
show.pdf.haml show.pdf.haml
= wicked_pdf_stylesheet_link_tag "application"
= wicked_pdf_javascript_include_tag "application", "jquery_nested_form", "chartkick"
- @page_title = "Report"
%meta{"http-equiv" => "content-type", "content" => "text/html", "charset" => "utf-8"}
%br
%br
%br
%br
%h2{align: "center"}
Report
%br
errors from sidekiq: 来自sidekiq的错误：
2016-03-16T16:29:06.488Z 22864 TID-ousqdbkxk WARN: SyntaxError: /Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:2: syntax error, unexpected ')', expecting keyword_end
));}\n#{_hamlout.format_script...
^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:3: syntax error, unexpected tCONSTANT, expecting keyword_end
));}\n", 0, false); @page_title = "Report"
^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected tIDENTIFIER, expecting keyword_do or '{' or '('
...amlout.push_text("<meta charset='utf-8' content='text/html' ...
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected tIDENTIFIER, expecting keyword_end
...("<meta charset='utf-8' content='text/html' http-equiv='cont...
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected tIDENTIFIER, expecting keyword_end
...utf-8' content='text/html' http-equiv='content-type'>\n<br>\...
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected $undefined
...ml' http-equiv='content-type'>\n<br>\n<br>\n<br>\n<br>\n<h2#{
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected $undefined
...tp-equiv='content-type'>\n<br>\n<br>\n<br>\n<br>\n<h2#{
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected $undefined
...iv='content-type'>\n<br>\n<br>\n<br>\n<br>\n<h2#{
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected $undefined
...ntent-type'>\n<br>\n<br>\n<br>\n<br>\n<h2#{
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:4: syntax error, unexpected $undefined
...type'>\n<br>\n<br>\n<br>\n<br>\n<h2#{
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:9: syntax error, unexpected '}', expecting keyword_end
...utes({}, nil, align: "center")}>\n Report\n <br>\n</h2>\n"...
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:9: syntax error, unexpected $undefined
... "center")}>\n Report\n <br>\n</h2>\n", 0, false);::Haml::...
... ^
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:9: unterminated regexp meets end of file
/Users/user/Sites/cp_reports/app/views/quarterly_reports/show.pdf.haml:9: syntax error, unexpected end-of-input, expecting keyword_end
2016-03-16T16:29:06.489Z 22864 TID-ousqdbkxk WARN: /Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:297:in `module_eval'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:297:in `compile'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:245:in `block (2 levels) in compile!'
/Users/user/.rvm/gems/ruby-2.2.3/gems/activesupport-4.1.10/lib/active_support/notifications.rb:161:in `instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:339:in `instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:244:in `block in compile!'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:232:in `synchronize'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:232:in `compile!'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:144:in `block in render'
/Users/user/.rvm/gems/ruby-2.2.3/gems/activesupport-4.1.10/lib/active_support/notifications.rb:161:in `instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:339:in `instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/template.rb:143:in `render'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/template_renderer.rb:55:in `block (2 levels) in render_template'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/abstract_renderer.rb:38:in `block in instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/activesupport-4.1.10/lib/active_support/notifications.rb:159:in `block in instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/activesupport-4.1.10/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/activesupport-4.1.10/lib/active_support/notifications.rb:159:in `instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/abstract_renderer.rb:38:in `instrument'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/template_renderer.rb:54:in `block in render_template'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/template_renderer.rb:62:in `render_with_layout'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/template_renderer.rb:53:in `render_template'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/template_renderer.rb:17:in `render'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/renderer.rb:42:in `render_template'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/renderer/renderer.rb:23:in `render'
/Users/user/.rvm/gems/ruby-2.2.3/gems/actionview-4.1.10/lib/action_view/helpers/rendering_helper.rb:32:in `render'
/Users/user/.rvm/gems/ruby-2.2.3/gems/haml-4.0.7/lib/haml/helpers/action_view_mods.rb:12:in `render_with_haml'
/Users/user/Sites/cp_reports/app/workers/generate_pdf.rb:33:in `perform'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/processor.rb:150:in `execute_job'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/processor.rb:132:in `block (2 levels) in process'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/chain.rb:127:in `block in invoke'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/server/active_record.rb:6:in `call'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/chain.rb:129:in `block in invoke'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/server/retry_jobs.rb:74:in `call'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/chain.rb:129:in `block in invoke'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/server/logging.rb:11:in `block in call'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/logging.rb:30:in `with_context'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/server/logging.rb:7:in `call'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/chain.rb:129:in `block in invoke'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/chain.rb:132:in `call'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/middleware/chain.rb:132:in `invoke'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/processor.rb:127:in `block in process'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/processor.rb:166:in `stats'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/processor.rb:126:in `process'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/processor.rb:79:in `process_one'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/processor.rb:67:in `run'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/util.rb:16:in `watchdog'
/Users/user/.rvm/gems/ruby-2.2.3/gems/sidekiq-4.0.1/lib/sidekiq/util.rb:24:in `block in safe_thread'
1 个解决方案
解决方案1
0 2016-03-16 22:28:20
After stepping through the render via cli. 通过cli单步执行渲染后。 I noticed that the error had nothing to do with haml after all. 我注意到该错误毕竟与haml无关。 When I was calling locals in render I had my symbol wrong. 当我在render中呼叫本地人时，我的符号错误。 I changed this: 我改变了这个：
pdf = av.render template: 'quarterly_reports/show.pdf.haml',
locals: {@report => @report}
To This: 为此：
pdf = av.render template: 'quarterly_reports/show.pdf.haml',
locals: {:@report => @report}
Everything is now working as expected. 现在一切都按预期工作。
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