Add warning when non-mapping query tag is set

.changes/2.3.1.md

@@ -0,0 +1,7 @@
+## dbt-snowflake-query-tags 2.3.1 - August 18, 2023
+
+### Features
+
+- Handle non-mapping configs gracefully ([#17](https://github.com/get-select/dbt-snowflake-query-tags/pull/17))
+
+

CHANGELOG.md

@@ -5,6 +5,14 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 and is generated by [Changie](https://github.com/miniscruff/changie).
 
+## dbt-snowflake-query-tags 2.3.1 - August 18, 2023
+
+### Features
+
+- Handle non-mapping configs gracefully ([#17](https://github.com/get-select/dbt-snowflake-query-tags/pull/17))
+
+
+
 ## dbt-snowflake-query-tags 2.3.0 - June 29, 2023
 
 ### Features

dbt_project.yml

@@ -1,3 +1,3 @@
 name: 'dbt_snowflake_query_tags'
-version: '2.3.0'
+version: '2.3.1'
 config-version: 2

integration_test_project/models/materialized_incremental.sql

@@ -1,4 +1,4 @@
-{{ config(materialized='incremental', tags=['a', 'b', 'c']) }}
+{{ config(materialized='incremental', tags=['a', 'b', 'c'], query_tag={'test': 'test'}) }}
 
 select 1 as a
 

integration_test_project/models/materialized_table.sql

@@ -1,11 +1,12 @@
 {{
     config(
         meta={
-            "owner": "@alice", 
+            "owner": "@alice",
             "model_maturity": "in dev"
         },
         materialized="table",
-        tags='a'
+        tags='a',
+        query_tag="this will generate a warning"
     )
 }}
 

macros/query_tags.sql

@@ -4,31 +4,37 @@
 
 {% macro default__set_query_tag() -%}
     {# Start with any model-configured dict #}
-    {% set tag_dict = config.get('query_tag', default={}) %}
+    {% set query_tag = config.get('query_tag', default={}) %}
 
-    {%- do tag_dict.update(
+    {% if query_tag is not mapping %}
+    {% do log("dbt-snowflake-query-tags warning: the query_tag config value of '{}' is not a mapping type, so is being ignored. If you'd like to add additional query tag information, use a mapping type instead, or remove it to avoid this message.".format(query_tag), True) %}
+    {% set query_tag = {} %} {# If the user has set the query tag config as a non mapping type, start fresh #}
+    {% endif %}
+
+
+    {%- do query_tag.update(
         app='dbt',
         dbt_snowflake_query_tags_version='2.3.0',
     ) -%}
 
     {% if thread_id %}
-        {%- do tag_dict.update(
+        {%- do query_tag.update(
             thread_id=thread_id
         ) -%}
     {% endif %}
 
 
     {# We have to bring is_incremental through here because its not available in the comment context #}
     {% if model.resource_type == 'model' %}
-        {%- do tag_dict.update(
+        {%- do query_tag.update(
             is_incremental=is_incremental()
         ) -%}
     {% endif %}
 
-    {% set new_query_tag = tojson(tag_dict) %}
+    {% set query_tag_json = tojson(query_tag) %}
     {% set original_query_tag = get_current_query_tag() %}
-    {{ log("Setting query_tag to '" ~ new_query_tag ~ "'. Will reset to '" ~ original_query_tag ~ "' after materialization.") }}
-    {% do run_query("alter session set query_tag = '{}'".format(new_query_tag)) %}
+    {{ log("Setting query_tag to '" ~ query_tag_json ~ "'. Will reset to '" ~ original_query_tag ~ "' after materialization.") }}
+    {% do run_query("alter session set query_tag = '{}'".format(query_tag_json)) %}
     {{ return(original_query_tag)}}
 {% endmacro %}