[
 {
  "creation": "2010-08-08 17:09:34", 
  "docstatus": 0, 
  "modified": "2013-02-18 13:41:16", 
  "modified_by": "Administrator", 
  "owner": "Administrator"
 }, 
 {
  "doctype": "Table Mapper Detail", 
  "name": "__common__", 
  "parent": "Material Request-Purchase Order", 
  "parentfield": "table_mapper_details", 
  "parenttype": "DocType Mapper"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "name": "__common__", 
  "parent": "Material Request-Purchase Order", 
  "parentfield": "field_mapper_details", 
  "parenttype": "DocType Mapper"
 }, 
 {
  "doctype": "DocType Mapper", 
  "from_doctype": "Material Request", 
  "module": "Buying", 
  "name": "__common__", 
  "ref_doc_submitted": 1, 
  "to_doctype": "Purchase Order"
 }, 
 {
  "doctype": "DocType Mapper", 
  "name": "Material Request-Purchase Order"
 }, 
 {
  "checking_operator": "=", 
  "doctype": "Field Mapper Detail", 
  "from_field": "company", 
  "map": "Yes", 
  "match_id": 0, 
  "to_field": "company"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "parenttype", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "prevdoc_doctype"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "parent", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "prevdoc_docname"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "name", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "prevdoc_detail_docname"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "uom", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "stock_uom"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "eval:flt(1)", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "conversion_factor"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "eval:flt(obj.qty) - flt(obj.ordered_qty)", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "stock_qty"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "eval:flt(obj.qty) - flt(obj.ordered_qty)", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "qty"
 }, 
 {
  "doctype": "Field Mapper Detail", 
  "from_field": "schedule_date", 
  "map": "Yes", 
  "match_id": 1, 
  "to_field": "schedule_date"
 }, 
 {
  "checking_operator": ">=", 
  "doctype": "Field Mapper Detail", 
  "from_field": "transaction_date", 
  "map": "No", 
  "match_id": 0, 
  "to_field": "transaction_date"
 }, 
 {
  "doctype": "Table Mapper Detail", 
  "from_table": "Material Request", 
  "match_id": 0, 
  "reference_key": "prevdoc_docname", 
  "to_table": "Purchase Order", 
  "validation_logic": "docstatus = 1"
 }, 
 {
  "doctype": "Table Mapper Detail", 
  "from_field": "indent_details", 
  "from_table": "Material Request Item", 
  "match_id": 1, 
  "reference_doctype_key": "prevdoc_doctype", 
  "to_field": "po_details", 
  "to_table": "Purchase Order Item", 
  "validation_logic": "qty > ifnull(ordered_qty,0) and docstatus =1"
 }
]