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link_preview.py
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link_preview.py
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import frappe
from frappe.model import no_value_fields
import json
@frappe.whitelist()
def get_preview_data(doctype, docname):
preview_fields = []
meta = frappe.get_meta(doctype)
if not meta.show_preview_popup: return
preview_fields = [field.fieldname for field in meta.fields \
if field.in_preview and field.fieldtype not in no_value_fields]
# no preview fields defined, build list from mandatory fields
if not preview_fields:
preview_fields = [field.name for field in meta.fields if field.reqd]
title_field = meta.get_title_field()
image_field = meta.image_field
preview_fields.append(title_field)
preview_fields.append(image_field)
preview_fields.append('name')
preview_data = frappe.get_list(doctype, filters={
'name': docname
}, fields=preview_fields, limit=1)
if not preview_data: return
preview_data = preview_data[0]
formatted_preview_data = {
'preview_image': preview_data.get(image_field),
'preview_title': preview_data.get(title_field),
'name': preview_data.get('name'),
}
for key, val in preview_data.items():
if val and meta.has_field(key) and key not in [image_field, title_field, 'name']:
formatted_preview_data[meta.get_field(key).label] = frappe.format(val, meta.get_field(key).fieldtype)
return formatted_preview_data