Make changes to migration and filtering to support default date value

Author: jloux-brapi

src/main/java/org/brapi/test/BrAPITestServer/service/SearchQueryBuilder.java

@@ -26,6 +26,7 @@ public class SearchQueryBuilder<T> {
 	private List<String> joinedTables = new ArrayList<>();
 	private List<String> joinedFetchedTables = new ArrayList<>();
 	private Class<T> clazz;
+	private final String default_date = "1970-01-01";
 
 	public SearchQueryBuilder(Class<T> clazz) {
 		this.selectClause = "SELECT distinct entity FROM " + clazz.getSimpleName() + " entity ";
@@ -202,7 +203,9 @@ public SearchQueryBuilder<T> appendLikeDate(String like, String columnName) {
 		String paramName = paramFilterPattern(columnName);
 
 		if (like != null) {
-			this.whereClause += " AND to_char(" + entityPrefix(columnName) + ", 'YYYY-MM-DD') LIKE :" + paramName + " ";
+			this.whereClause += " AND to_char(" + entityPrefix(columnName) + ", 'YYYY-MM-DD') LIKE :" + paramName + " " +
+					// Ensure we do not filter against the default date, which is effectively a NULL value for DeltaBreed's system.
+				" AND to_char(" + entityPrefix(columnName) + ", 'YYYY-MM-DD') <> '" + default_date + "' ";
 			this.params.put(paramName, "%" + like + "%");
 		}
 		return this;

src/main/resources/db/migration/V006_004__collate_germplasm_columns.sql

@@ -36,15 +36,20 @@ ALTER TABLE germplasm
 ALTER TABLE germplasm
     ADD COLUMN created_date TIMESTAMP NOT NULL
         GENERATED ALWAYS AS (
-            make_timestamp(
-                    substring(additional_info #>> '{createdDate}' from 7 for 4)::int,  -- year
-                    substring(additional_info #>> '{createdDate}' from 4 for 2)::int,  -- month
-                    substring(additional_info #>> '{createdDate}' from 1 for 2)::int,  -- day
-                    substring(additional_info #>> '{createdDate}' from 12 for 2)::int, -- hour
-                    substring(additional_info #>> '{createdDate}' from 15 for 2)::int, -- minute
-                    substring(additional_info #>> '{createdDate}' from 18 for 2)::int  -- second
-            )
-            ) STORED;
+            CASE
+                WHEN additional_info #>> '{createdDate}' IS NULL
+                    THEN TIMESTAMP '1970-01-01 00:00:00'
+                ELSE
+                    make_timestamp(
+                            substring(additional_info #>> '{createdDate}' from 7 for 4)::int,  -- year
+                            substring(additional_info #>> '{createdDate}' from 4 for 2)::int,  -- month
+                            substring(additional_info #>> '{createdDate}' from 1 for 2)::int,  -- day
+                            substring(additional_info #>> '{createdDate}' from 12 for 2)::int, -- hour
+                            substring(additional_info #>> '{createdDate}' from 15 for 2)::int, -- minute
+                            substring(additional_info #>> '{createdDate}' from 18 for 2)::int  -- second
+                    )
+                END
+        ) STORED;
 
 ALTER TABLE germplasm
     ADD COLUMN