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from airflow.hooks.sqlite_hook import SqliteHook
from airflow.models import BaseOperator
from airflow.utils.decorators import apply_defaults
[docs]class SqliteOperator(BaseOperator):
"""
Executes sql code in a specific Sqlite database
:param sql: the sql code to be executed. (templated)
:type sql: str or string pointing to a template file. File must have
a '.sql' extensions.
:param sqlite_conn_id: reference to a specific sqlite database
:type sqlite_conn_id: str
:param parameters: (optional) the parameters to render the SQL query with.
:type parameters: mapping or iterable
"""
[docs] template_fields = ('sql',)
[docs] template_ext = ('.sql',)
@apply_defaults
def __init__(
self, sql, sqlite_conn_id='sqlite_default', parameters=None,
*args, **kwargs):
super(SqliteOperator, self).__init__(*args, **kwargs)
self.sqlite_conn_id = sqlite_conn_id
self.sql = sql
self.parameters = parameters or []
[docs] def execute(self, context):
self.log.info('Executing: %s', self.sql)
hook = SqliteHook(sqlite_conn_id=self.sqlite_conn_id)
hook.run(self.sql, parameters=self.parameters)