20 lines
575 B
Markdown
20 lines
575 B
Markdown
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---
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{
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"_label": "Custom Script: Fetch Values from Master"
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}
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---
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To pull a value of a link on selection, use the `add_fetch` method.
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add_fetch(link_fieldname, source_fieldname, target_fieldname)
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### Example
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You create Custom Field **VAT ID** (`vat_id`) in **Customer** and **Sales Invoice** and want to make sure this value gets updated every time you select a Customer in a Sales Invoice.
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Then in the Sales Invoice Custom Script, add this line:
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cur_frm.add_fetch('customer','vat_id','vat_id')
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---
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See: [How to create a custom script](!docs.dev.custom_script.html)
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