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Goal

You want to derive part of your model from an external source. For Instance you would like to determine the street name and town based on the postalcode postal code and housenumberhouse number. 

Ingredients

• Entities
• Attributes
• CSV Wizard
• CSV File
• Data rule
• Page
• Flow

Recipe

Step-by-step guide

To use Use a data rule to derive information for one or more attribute values . follow these steps:

Create a domain

The following domain model displays a Person and Address Entity.Image Removed

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Select a CSV file

We will use the a CSV file that has a list of all available adresses addresses to load the street name and town based on the postalcode postal code and town

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Use the CSV wizard

You can use the CSV wizard to create a datarule data rule that uses a CSV datasourcedata source

• Select the Connectivity tab.
• Select CSV Wizard.
  
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• Select Data rule.
• Select create new resourceCreate new resource.
  • If you would like to manage the CSV file outside Blueriq, check the box 'Is external'. Now, the imported text file will only be used as an example for configuration of the resource. 
  • For configuring this resource in Runtime, see Global: Resource. 
• Enter a name and select a CSV file.
• Select the format settings.
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• Enter the selection criterea criteria and goals.
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•  Finish Finish the wizard, a new data rule is created

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To test your datarule data rule create a page that contains al all attributes. Make sure that you add a refresh to the attributes that are used as input (postalcode, housenumber) and ensure that the attributes that are used as goal (street and town) are set to read-only.

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CSV used in the example project: PostalcodeTable.csv