[
 {
  "creation": "2010-08-08 17:09:35", 
  "docstatus": 0, 
  "modified": "2013-07-03 18:00:40", 
  "modified_by": "Administrator", 
  "owner": "Administrator"
 }, 
 {
  "doctype": "Table Mapper Detail", 
  "name": "__common__", 
  "parent": "Purchase Order-Purchase Invoice", 
  "parentfield": "table_mapper_details", 
  "parenttype": "DocType Mapper"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "name": "__common__", 
  "parent": "Purchase Order-Purchase Invoice", 
  "parentfield": "field_mapper_details", 
  "parenttype": "DocType Mapper"
 }, 
 {
  "doctype": "DocType Mapper", 
  "from_doctype": "Purchase Order", 
  "module": "Accounts", 
  "name": "__common__", 
  "ref_doc_submitted": 1, 
  "to_doctype": "Purchase Invoice"
 }, 
 {
  "doctype": "DocType Mapper", 
  "name": "Purchase Order-Purchase Invoice"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "eval: (flt(obj.amount) - flt(obj.billed_amt)) / obj.purchase_rate", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "qty"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "purchase_rate", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "rate"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "eval: flt(obj.amount) - flt(obj.billed_amt)", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "amount"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "eval: (flt(obj.amount) - flt(obj.billed_amt)) / flt(obj.conversion_rate)", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "import_amount"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "parent", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "purchase_order"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "name", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "po_detail"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "naming_series", 
  "map": "No", 
  "match_id": 0, 
  "to_field": "naming_series"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "total_tax", 
  "map": "Yes", 
  "match_id": 0, 
  "to_field": "total_tax"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "conversion_rate", 
  "map": "Yes", 
  "match_id": 0, 
  "to_field": "conversion_rate"
 }, 
 {
  "doctype": "Table Mapper Detail", 
  "from_table": "Purchase Order", 
  "match_id": 0, 
  "to_table": "Purchase Invoice", 
  "validation_logic": "docstatus =1"
 }, 
 {
  "doctype": "Table Mapper Detail", 
  "from_field": "po_details", 
  "from_table": "Purchase Order Item", 
  "match_id": 1, 
  "to_field": "entries", 
  "to_table": "Purchase Invoice Item", 
  "validation_logic": "ifnull(billed_amt,0)  < amount and docstatus = 1"
 }, 
 {
  "doctype": "Table Mapper Detail", 
  "from_field": "purchase_tax_details", 
  "from_table": "Purchase Taxes and Charges", 
  "match_id": 2, 
  "to_field": "purchase_tax_details", 
  "to_table": "Purchase Taxes and Charges", 
  "validation_logic": "docstatus =1"
 }
]