mongodb的嵌入式文檔可以在web2py DAL中建模嗎？

Question

這個mongodb嵌入式文檔結構如何在Web2PY DAL中建模？

{ 
    _id: "joe", 
    name: "Joe Bookreader", 
    addresses: [ 
       { 
        street: "123 Fake Street", 
        city: "Faketon", 
        state: "MA", 
        zip: 12345 
       }, 
       { 
        street: "1 Some Other Street", 
        city: "Boston", 
        state: "MA", 
        zip: 12345 
       } 
       ] 
} 

Answer 1

MongoDB的，web2py的DAL可以是這樣的

db = DAL('mongodb://username:password@localhost/test', pool_size=0) 
db.define_table('address', 
       Field('street'), 
       Field('city'), 
       Field('state'), 
       Field('zip'), 
       format='%(name)s') 

db.define_table('table', 
       Field('name'), 
       Field('address','list:reference address'), 
       format='%(name)s') 

對於插入你可以做

first = db.address.insert(street = '123 Fake Street', 
          city = 'Faketon', 
          state = 'MA', 
          zip = '12345') 
second = db.address.insert(street = '1 Some Other Street', 
          city = 'Boston', 
          state = 'MA', 
          zip = '12345') 
db.table.insert(name = 'Joe Bookreader', address = [first, second]) 

或者直接就可以做到這一點代碼：

db.define_table('table_name',Field('name'),Field('addresses','text')) 
list_data = [ 
      { 
       street: "123 Fake Street", 
       city: "Faketon", 
       state: "MA", 
       zip: 12345 
      }, 
      { 
       street: "1 Some Other Street", 
       city: "Boston", 
       state: "MA", 
       zip: 12345 
      } 
      ] 
db.table_name.insert(name='Joe Bookreader', addresses=list_data) 

Answer 2

查找list和「json`類型下的文件部分在這裏：

http://www.web2py.com/book/default/chapter/06#Record-representation