Import Pipeline from Text从文本导入管道

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New in version 1.15.0版本1.15.0中的新功能

You can import aggregation pipelines from plain text into the Aggregation Pipeline Builder to easily modify and execute your pipelines. 您可以将聚合管道从纯文本导入到聚合管道生成器中，以便轻松修改和执行管道。Importing a plain text aggregation pipeline shows how each stage of the pipeline affects the output, and illustrates the effects of modifying specific pipeline stages using the Pipeline Builder's Output panes.导入纯文本聚合管道显示管道的每个阶段如何影响输出，并说明使用管道生成器的输出窗格修改特定管道阶段的效果。

The imported pipeline must be in the MongoDB query language (i.e. the same syntax used as the pipeline parameter of the db.collection.aggregate() method). 导入的管道必须使用MongoDB查询语言（即使用与db.collection.aggregate()方法的pipeline参数相同的语法）。The imported pipeline must be an array, even if there is only one stage in the pipeline.导入的管道必须是数组，即使管道中只有一个阶段。

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Navigate to the collection for which you wish to import your aggregation pipeline. 导航到要为其导入聚合管道的集合。Click the Aggregations tab.单击“聚合”选项卡。

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Open the New Pipeline From Plain Text dialog.打开“从纯文本新建管道”对话框。

  1. Click the arrow next to the icon at the top of the pipeline builder.单击管道生成器顶部图标旁边的箭头。
  2. Click New Pipeline From Text.单击“从文本新建管道”。
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If you have a pre-written pipeline you wish to import into the Aggregation Pipeline Builder, copy it to your clipboard and paste it into the New Pipeline from Plain Text dialog. 如果您有要导入聚合管道生成器的预写管道，请将其复制到剪贴板，并将其粘贴到“从纯文本对话框新建管道”对话框中。Otherwise, type your pipeline in the input.否则，请在输入中键入管道。

Import pipeline from text example
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Once you import your pipeline, you can add and modify individual stages and see the results reflected in the Output of each respective stage.导入管道后，可以添加和修改各个阶段，并查看每个阶段“输出”中反映的结果。