Migrate SQLite example DAGs to new design #22461 (#24150)

docs/apache-airflow-providers-sqlite/index.rst

@@ -39,7 +39,7 @@ Content
     :maxdepth: 1
     :caption: Resources
 
-    Example DAGs <https://github.com/apache/airflow/tree/main/airflow/providers/sqlite/example_dags>
+    Example DAGs <https://github.com/apache/airflow/tree/main/tests/system/providers/sqlite>
 
 .. toctree::
     :maxdepth: 1

docs/apache-airflow-providers-sqlite/operators.rst

@@ -51,14 +51,14 @@ the connection metadata is structured as follows:
 
 An example usage of the SqliteOperator is as follows:
 
-.. exampleinclude:: /../../airflow/providers/sqlite/example_dags/example_sqlite.py
+.. exampleinclude:: /../../tests/system/providers/sqlite/example_sqlite.py
     :language: python
     :start-after: [START howto_operator_sqlite]
     :end-before: [END howto_operator_sqlite]
 
 Furthermore, you can use an external file to execute the SQL commands. Script folder must be at the same level as DAG.py file.
 
-.. exampleinclude:: /../../airflow/providers/sqlite/example_dags/example_sqlite.py
+.. exampleinclude:: /../../tests/system/providers/sqlite/example_sqlite.py
     :language: python
     :start-after: [START howto_operator_sqlite_external_file]
     :end-before: [END howto_operator_sqlite_external_file]

tests/system/providers/sqlite/example_sqlite.py

@@ -0,0 +1,102 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+"""
+This is an example DAG for the use of the SqliteOperator.
+In this example, we create two tasks that execute in sequence.
+The first task calls an sql command, defined in the SQLite operator,
+which when triggered, is performed on the connected sqlite database.
+The second task is similar but instead calls the SQL command from an external file.
+"""
+
+import os
+from datetime import datetime
+
+from airflow import DAG
+from airflow.providers.sqlite.hooks.sqlite import SqliteHook
+from airflow.providers.sqlite.operators.sqlite import SqliteOperator
+
+ENV_ID = os.environ.get("SYSTEM_TESTS_ENV_ID")
+DAG_ID = "example_sqlite"
+
+with DAG(
+    dag_id=DAG_ID,
+    schedule_interval='@daily',
+    start_date=datetime(2021, 1, 1),
+    tags=['example'],
+    catchup=False,
+) as dag:
+
+    # [START howto_operator_sqlite]
+
+    # Example of creating a task that calls a common CREATE TABLE sql command.
+    create_table_sqlite_task = SqliteOperator(
+        task_id='create_table_sqlite',
+        sql=r"""
+        CREATE TABLE Customers (
+            customer_id INT PRIMARY KEY,
+            first_name TEXT,
+            last_name TEXT
+        );
+        """,
+    )
+
+    # [END howto_operator_sqlite]
+
+    @dag.task(task_id="insert_sqlite_task")
+    def insert_sqlite_hook():
+        sqlite_hook = SqliteHook()
+
+        rows = [('James', '11'), ('James', '22'), ('James', '33')]
+        target_fields = ['first_name', 'last_name']
+        sqlite_hook.insert_rows(table='Customers', rows=rows, target_fields=target_fields)
+
+    @dag.task(task_id="replace_sqlite_task")
+    def replace_sqlite_hook():
+        sqlite_hook = SqliteHook()
+
+        rows = [('James', '11'), ('James', '22'), ('James', '33')]
+        target_fields = ['first_name', 'last_name']
+        sqlite_hook.insert_rows(table='Customers', rows=rows, target_fields=target_fields, replace=True)
+
+    # [START howto_operator_sqlite_external_file]
+
+    # Example of creating a task that calls an sql command from an external file.
+    external_create_table_sqlite_task = SqliteOperator(
+        task_id='create_table_sqlite_external_file',
+        sql='create_table.sql',
+    )
+
+    # [END howto_operator_sqlite_external_file]
+
+    (
+        create_table_sqlite_task
+        >> external_create_table_sqlite_task
+        >> insert_sqlite_hook()
+        >> replace_sqlite_hook()
+    )
+
+    from tests.system.utils.watcher import watcher
+
+    # This test needs watcher in order to properly mark success/failure
+    # when "tearDown" task with trigger rule is part of the DAG
+    list(dag.tasks) >> watcher()
+
+from tests.system.utils import get_test_run  # noqa: E402
+
+# Needed to run the example DAG with pytest (see: tests/system/README.md#run_via_pytest)
+test_run = get_test_run(dag)