Ajouter la suppression globale des positions du graphe

Makefile

@@ -1,3 +1,4 @@
+
 CC = gcc
 
 PKG_CONFIG = pkg-config
@@ -27,6 +28,7 @@ EVIDENCE_RECORD_TEST_CFLAGS := $(TEST_CFLAGS) -Wpedantic
 EVIDENCE_TYPE_TEST_CFLAGS := $(TEST_CFLAGS) -Wpedantic
 ENTITY_TYPE_TEST_CFLAGS := $(TEST_CFLAGS) -Wpedantic
 EVIDENCE_TYPE_DAO_TEST_CFLAGS := $(TEST_CFLAGS) -Wpedantic
+GRAPH_NODE_POSITION_DAO_TEST_CFLAGS := $(TEST_CFLAGS) -Wpedantic
 EVIDENCE_IMPORT_DIALOG_TEST_CFLAGS := \
 	-std=c17 \
 	-Wall \
@@ -107,6 +109,7 @@ TEST_RELATION_SERVICE := tests/test_relation_service
 TEST_INVESTIGATION_GRAPH_MODEL := tests/test_investigation_graph_model
 TEST_INVESTIGATION_GRAPH_LOADER := tests/test_investigation_graph_loader
 TEST_INVESTIGATION_GRAPH_LOAD_TASK := tests/test_investigation_graph_load_task
+TEST_GRAPH_NODE_POSITION_DAO := tests/test_graph_node_position_dao
 
 all: $(TARGET)
 
@@ -510,6 +513,18 @@ $(TEST_INVESTIGATION_GRAPH_LOADER): \
 	$(CC) $(INVESTIGATION_GRAPH_LOADER_TEST_CFLAGS) $^ -o $@ \
 		$(TEST_LDFLAGS) -lsqlite3
 
+$(TEST_GRAPH_NODE_POSITION_DAO): \
+	tests/test_graph_node_position_dao.c \
+	src/dao/graph_node_position_dao.c \
+	src/models/graph_node_position.c \
+	src/database/database.c \
+	src/database/schema.c \
+	src/database/statement.c \
+	src/database/transaction.c \
+	src/database/error.c
+	$(CC) $(GRAPH_NODE_POSITION_DAO_TEST_CFLAGS) $^ -o $@ \
+		$(TEST_LDFLAGS) -lsqlite3
+
 $(TEST_INVESTIGATION_GRAPH_LOAD_TASK): \
 	tests/test_investigation_graph_load_task.c \
 	src/core/investigation_graph_load_task.c \
@@ -576,7 +591,8 @@ test: \
 	$(TEST_RELATION_SERVICE) \
 	$(TEST_INVESTIGATION_GRAPH_MODEL) \
 	$(TEST_INVESTIGATION_GRAPH_LOADER) \
-	$(TEST_INVESTIGATION_GRAPH_LOAD_TASK)
+	$(TEST_INVESTIGATION_GRAPH_LOAD_TASK) \
+	$(TEST_GRAPH_NODE_POSITION_DAO)
 	@echo "Exécution des tests..."
 	@./$(TEST_NODE)
 	@./$(TEST_TREE_MODEL)
@@ -623,6 +639,7 @@ test: \
 	@$(TEST_INVESTIGATION_GRAPH_MODEL)
 	@$(TEST_INVESTIGATION_GRAPH_LOADER)
 	@$(TEST_INVESTIGATION_GRAPH_LOAD_TASK)
+	@$(TEST_GRAPH_NODE_POSITION_DAO)
 	@echo "Tous les tests sont valides."
 
 %.o: %.c
@@ -675,6 +692,7 @@ clean:
 		$(TEST_RELATION_SERVICE) \
 		$(TEST_INVESTIGATION_GRAPH_MODEL) \
 		$(TEST_INVESTIGATION_GRAPH_LOADER) \
-		$(TEST_INVESTIGATION_GRAPH_LOAD_TASK)
+		$(TEST_INVESTIGATION_GRAPH_LOAD_TASK) \
+		$(TEST_GRAPH_NODE_POSITION_DAO)
 
 .PHONY: clean run test

include/dao/graph_node_position_dao.h

@@ -128,6 +128,21 @@ gboolean graph_node_position_dao_delete(
     GError **error
 );
 
+/**
+ * @brief Supprime toutes les positions persistées du graphe.
+ *
+ * Une table déjà vide n'est pas une erreur.
+ *
+ * @param position_dao DAO valide.
+ * @param error Adresse recevant une éventuelle erreur.
+ *
+ * @return TRUE si la requête réussit, sinon FALSE.
+ */
+gboolean graph_node_position_dao_delete_all(
+    GraphNodePositionDao *position_dao,
+    GError **error
+);
+
 G_END_DECLS
 
 #endif

src/dao/graph_node_position_dao.c

@@ -65,6 +65,12 @@ static const char *const graph_node_position_dao_delete_sql =
     "DELETE FROM graph_node_positions "
     "WHERE entity_id = ?;";
 
+/**
+ * @brief Requête de suppression de toutes les positions.
+ */
+static const char *const graph_node_position_dao_delete_all_sql =
+    "DELETE FROM graph_node_positions;";
+
 /**
  * @brief Enregistre une erreur littérale.
  */
@@ -791,3 +797,75 @@ cleanup:
 
     return success;
 }
+
+gboolean graph_node_position_dao_delete_all(
+    GraphNodePositionDao *position_dao,
+    GError **error
+)
+{
+    DatabaseStatement *statement =
+        NULL;
+
+    gboolean success =
+        FALSE;
+
+    g_return_val_if_fail(
+        error == NULL || *error == NULL,
+        FALSE
+    );
+
+    if (position_dao == NULL ||
+        position_dao->database == NULL)
+    {
+        graph_node_position_dao_set_error_literal(
+            error,
+            GRAPH_NODE_POSITION_DAO_ERROR_INVALID_ARGUMENT,
+            "Le DAO des positions de nœuds est invalide."
+        );
+
+        return FALSE;
+    }
+
+    statement =
+        database_statement_prepare(
+            position_dao->database,
+            graph_node_position_dao_delete_all_sql
+        );
+
+    if (statement == NULL)
+    {
+        graph_node_position_dao_set_database_error(
+            position_dao,
+            error,
+            GRAPH_NODE_POSITION_DAO_ERROR_PREPARE,
+            "Impossible de préparer la suppression des positions"
+        );
+
+        goto cleanup;
+    }
+
+    if (database_statement_step(
+            statement
+        ) != DATABASE_STATEMENT_STEP_DONE)
+    {
+        graph_node_position_dao_set_database_error(
+            position_dao,
+            error,
+            GRAPH_NODE_POSITION_DAO_ERROR_EXECUTE,
+            "Impossible de supprimer les positions du graphe"
+        );
+
+        goto cleanup;
+    }
+
+    success =
+        TRUE;
+
+cleanup:
+
+    database_statement_finalize(
+        statement
+    );
+
+    return success;
+}