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Simple Python Model class for use with SQLite3
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| import sqlite3 | |
| class Model: | |
| def __init__(self, db, table): | |
| self.db = db | |
| self.table = table | |
| self.connection = sqlite3.connect(db + '.db') | |
| self.connection.row_factory = sqlite3.Row | |
| def create(self, row): | |
| bindings = '(' | |
| keys = '(' | |
| values = [] | |
| i = 0 | |
| for key, value in row.items(): | |
| bindings += '?' | |
| keys += key | |
| values.append(value) | |
| i += 1 | |
| if i != (len(row)): | |
| bindings += ', ' | |
| keys += ', ' | |
| bindings += ')' | |
| keys += ')' | |
| sql = 'INSERT INTO {} {} VALUES {}'.format(self.table, keys, bindings) | |
| print(sql, values) | |
| self.connection.execute(sql, values) | |
| self.connection.commit() | |
| def read(self): | |
| sql = 'SELECT * FROM {}'.format(self.table) | |
| print(sql) | |
| cursor = self.connection.execute(sql) | |
| rows = [] | |
| for row in cursor: | |
| print(dict(row)) | |
| rows.append(row) | |
| return rows | |
| def update(self, row, where): | |
| keys = '' | |
| values = [] | |
| i = 0 | |
| for key, value in row.items(): | |
| keys += key + ' = ?' | |
| values.append(value) | |
| i += 1 | |
| if i != len(row): | |
| keys += ', ' | |
| sql = 'UPDATE {} SET {} WHERE {} = {}'.format(self.table, keys, where['key'], where['value']) | |
| print(sql, values) | |
| self.connection.execute(sql, values) | |
| self.connection.commit() | |
| def delete(self, where): | |
| sql = 'DELETE FROM {} WHERE {} = {}'.format(self.table, where['key'], where['value']) | |
| print(sql) | |
| self.connection.execute(sql) | |
| self.connection.commit() | |
| def main(): | |
| m = Model('test', 'test') | |
| m.create(dict(t1='dudez', i1=9876)) | |
| m.update(dict(t1='faz', i1=2345), dict(key='i1', value=1234)) | |
| m.delete(dict(key='i1', value=4)) | |
| print(m.read()) | |
| if __name__ == "__main__": main() | |
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