openerp - How do I make related field that fetches all one2many values -

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मान लीजिए मेरे पास ऐसा कोड है: 

  'खर्च': fields.related ( 'Property_expense_preset', 'expense_preset', 'expenditure', type = "many2many", relation = "property.expense", स्ट्रिंग = "सामान्य व्यय", store = false),

अब property_expense_preset एक 2many फ़ील्ड है, जिसका मतलब है कि बहुत से property_expense_preset s हो सकते हैं। लेकिन उपरोक्त कोड केवल पहले property_expense_preset के बच्चों को लाता है। मैं उन सभी को इसके बजाय दिखाना चाहता हूं। मैं ऐसा कैसे करूँ?


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