Sqlite and Python — return a dictionary using fetchone()?

Question

I\'m using sqlite3 in python 2.5. I\'ve created a table that looks like this:

   create table votes (
      bill text,
      senator_id text,
      vote text)
<         


        

Answer 1

I use something like this:

class SqliteRow(object):
    def __init__(self):
        self.fields = []

    def add_field(self, name, value):
        self.fields.append(name)
        setattr(self, name, value)

    def to_tuple(self):
        return tuple([getattr(self, x) for x in self.fields])

with this:

def myobject_factory(cursor, row):
    myobject= MyObject()
    for idx, col in enumerate(cursor.description):
        name, value = (col[0], row[idx])

        myobject.add_field(name, value)
    return myobject

MyObject() is a class that inherits from SqliteRow. SqliteRow class is a base class for every object that I want to have returned by a query. Every column becomes an attribute and is logged into the fields list. Function to_tuple is used to change the whole object to a form suitable for queries (simply pass the whole object and forget).

To get different class types of that function. You would need to make a factory object, that will generate objects based on the list of fields (for example: dict with { some_unique_value_made_of_fields: class} )

This way I get a simple ORM.