如何以编程方式覆盖 Ruport 数据表的格式化程序？

发布于 2024-12-04 08:24:58 字数 608 浏览 0 评论 0原文

我在 Rails 应用程序中有一个非常简单的 Ruport 设置，其中 Ruport 控制器传递一个 Report::Data::Table 实例：

class Reporter < Ruport::Controller
  stage :headline, :data, :footer
  required_option :report

def setup
    report_klass = options.report.report_model
    report_klass ||= Report
    self.data = report_klass.send(:report_table_by_sql, options.report.query)
  end
end

Data::Table 实例当要求渲染时，存储在 data 中的数据使用 Ruport::Data::Table 作为其委托控制器，因此当我稍后调用

output << data.to_html

How can I Tell data 将其渲染方法委托给记者类，所以我所有的钩子覆盖都可以存在在一个地方？

原文

I have a pretty straight-forward Ruport setup in my Rails app, where the Ruport controller is passed a Report::Data::Table instance:

class Reporter < Ruport::Controller
  stage :headline, :data, :footer
  required_option :report

def setup
    report_klass = options.report.report_model
    report_klass ||= Report
    self.data = report_klass.send(:report_table_by_sql, options.report.query)
  end
end

The Data::Table instance that is stored in data uses Ruport::Data::Table as its delegated controller when asked to render, so that's what gets called when I later call

output << data.to_html

How can I tell data to delegate its rendering methods to the Reporter class, so all my hook overrides can live in one place?

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许久 2024-12-11 08:24:58

Ruport 格式化程序被设计为封装在继承自 Formatter 的单独类中。
我相信类似的东西会实现你想要的：

# Inherits all the default build methods from the HTML Formatter
class ReporterTableHTMLFormatter < Ruport::Formatter::HTML
  # Sets this class to render Ruport Tables
  # (Data instead of Controller may also work, the code path is a bit unclear/overloaded)
  renders :html, :for => Ruport::Controller::Table

  # Build table row
  def build_row(data)
    ...
  end
end

Ruport formatters are designed to be encapsulated in a separate class that inherits from Formatter.
I believe something similar to this will achieve what you want:

# Inherits all the default build methods from the HTML Formatter
class ReporterTableHTMLFormatter < Ruport::Formatter::HTML
  # Sets this class to render Ruport Tables
  # (Data instead of Controller may also work, the code path is a bit unclear/overloaded)
  renders :html, :for => Ruport::Controller::Table

  # Build table row
  def build_row(data)
    ...
  end
end

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昔梦 2024-12-11 08:24:58

Ruport 的 API 文档明确表示您可以注册单个 Formatter 后代具有多个 Controller，因此，如果您想要一个实现所有挂钩的格式化程序，您可以简单地说：

class DualPurposeFormatter < Ruport::Formatter::HTML
  renders :html, :for => [Reporter, Ruport::Controller::Table]

  #for Reporter controller
  def build_headline
    #...
  end

  #for Ruport::Controller::Table
  def build_row(row_data)
    #...
  end
end

Ruport's API documentation makes it clear that you can register a single Formatter descendant with multiple Controllers, so if you want to have a single formatter that implements all the hooks, you can simply say as much:

class DualPurposeFormatter < Ruport::Formatter::HTML
  renders :html, :for => [Reporter, Ruport::Controller::Table]

  #for Reporter controller
  def build_headline
    #...
  end

  #for Ruport::Controller::Table
  def build_row(row_data)
    #...
  end
end

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