From 5f3fc681108f813f8af0c84869e130d338ce1f8e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nico=20P=C3=A9rez?= <nperez@bgeo.es>
Date: Fri, 31 Jan 2025 10:34:06 +0100
Subject: [PATCH] feat(getlayerstofilter): returns are the layers that have the
 columns muni_id and sector_id (p. ex) in their primitive tables

---
 updates/40/40000/utils/dml.sql         |  6 +++
 utils/fct/gw_fct_getlayerstofilter.sql | 72 ++++++++++++++++++++++++++
 2 files changed, 78 insertions(+)
 create mode 100644 utils/fct/gw_fct_getlayerstofilter.sql

diff --git a/updates/40/40000/utils/dml.sql b/updates/40/40000/utils/dml.sql
index 43fff0ac3..f46dca18b 100644
--- a/updates/40/40000/utils/dml.sql
+++ b/updates/40/40000/utils/dml.sql
@@ -1140,3 +1140,9 @@ INSERT INTO config_form_fields (formname, formtype, tabname, columnname, layoutn
 INSERT INTO config_form_fields (formname, formtype, tabname, columnname, layoutname, layoutorder, "datatype", widgettype, "label", tooltip, placeholder, ismandatory, isparent, iseditable, isautoupdate, isfilter, dv_querytext, dv_orderby_id, dv_isnullvalue, dv_parent_id, dv_querytext_filterc, stylesheet, widgetcontrols, widgetfunction, linkedobject, hidden, web_layoutorder) VALUES('generic', 'check_project', 'tab_data', 'admin_check', 'lyt_data_1', 4, NULL, 'check', 'Check admin data:', NULL, NULL, false, false, true, false, NULL, NULL, NULL, NULL, NULL, NULL, NULL, '{"minRole": "role_admin"}'::json, NULL, NULL, false, 1);
 
 UPDATE config_form_fields SET columnname='conneccat_id' WHERE formname='v_edit_link' AND formtype='form_feature' AND columnname='connecat_id' AND tabname='tab_none';
+
+
+-- 31/01/2025
+INSERT INTO sys_function
+(id, function_name, project_type, function_type, input_params, return_type, descript, sys_role, sample_query, "source")
+VALUES(3380, 'gw_fct_getlayerstofilter', 'utils', 'function', 'json', 'json', 'Function to filter WMS layers with imported columns', 'role_basic', NULL, 'core');
diff --git a/utils/fct/gw_fct_getlayerstofilter.sql b/utils/fct/gw_fct_getlayerstofilter.sql
new file mode 100644
index 000000000..f6ebe85e1
--- /dev/null
+++ b/utils/fct/gw_fct_getlayerstofilter.sql
@@ -0,0 +1,72 @@
+/*
+This file is part of Giswater 3
+The program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+This version of Giswater is provided by Giswater Association
+*/
+
+--FUNCTION CODE: 3380
+
+DROP FUNCTION SCHEMA_NAME.gw_fct_getlayerstofilter(json);
+
+CREATE OR REPLACE FUNCTION SCHEMA_NAME.gw_fct_getlayerstofilter(p_data json)
+ RETURNS json
+ LANGUAGE plpgsql
+AS $function$
+
+/*
+SELECT SCHEMA_NAME.gw_fct_getselectorsfiltered($${"client":{"device": 5, "lang": "es_ES", "cur_user": "bgeo", "tiled": "False", "infoType": 1}, "form":{}, "feature":{},
+"data":{"filterFields":{}, "pageInfo":{}, "filter": ["muni_id", "sector_id"],"layers": ["Node","Connec"]}}$$);
+*/
+
+DECLARE
+
+v_layer text;
+v_msgerr json;
+v_version json;
+v_errcontext text;
+v_device integer;
+v_layers jsonb;
+v_cur_user text;
+v_layersFiltered text[] := ARRAY[]::text[];
+v_columns jsonb;
+v_schemaname text;
+v_filter jsonb;
+
+BEGIN
+
+	-- Set search path to local schema
+	SET search_path = "SCHEMA_NAME", public;
+	v_schemaname = "SCHEMA_NAME";
+
+	--  get api version
+	EXECUTE 'SELECT row_to_json(row) FROM (SELECT value FROM config_param_system WHERE parameter=''admin_version'') row' INTO v_version;
+
+	-- Get input parameters:
+	v_cur_user := (p_data ->> 'client')::json->> 'cur_user';
+	v_device := (p_data ->> 'client')::json->> 'device';
+	v_filter := (p_data ->> 'data')::jsonb->> 'filter';
+	v_layers := (p_data ->> 'data')::jsonb->> 'layers';
+
+	FOR v_layer IN SELECT jsonb_array_elements_text(v_layers)
+	LOOP
+		SELECT json_agg(column_name) INTO v_columns FROM information_schema.columns WHERE table_schema = v_schemaname AND table_name = lower(v_layer);
+		-- Check if v_columns contain the columns filter
+		IF v_columns @> v_filter THEN
+			v_layersFiltered := array_append(v_layersFiltered,v_layer);
+		END IF;
+	END LOOP;
+
+	RETURN gw_fct_json_create_return(json_build_object(
+	    'status', 'Accepted',
+	    'version', v_version,
+		'body', json_build_object('layers', v_layersFiltered)
+	),3380, null, null, NULL);
+
+	-- Exception handling
+	EXCEPTION WHEN OTHERS THEN
+	GET STACKED DIAGNOSTICS v_errcontext = pg_exception_context;
+	RETURN json_build_object('status', 'Failed','NOSQLERR', SQLERRM, 'version', v_version, 'SQLSTATE', SQLSTATE, 'MSGERR', (v_msgerr::json ->> 'MSGERR'))::json;
+
+END;
+$function$
+;