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authorJosé Bollo <jose.bollo@iot.bzh>2017-05-02 16:08:35 +0200
committerJosé Bollo <jose.bollo@iot.bzh>2017-09-19 15:25:36 +0200
commita91edb8202d3436e9d94a4f2b90c759f8833f770 (patch)
tree28aec17408af539f2c6dc8c8eca0e24f72240abf
parent6b647feb6483cecbfbf50efde394b5a7d8d0aa56 (diff)
Extend database values with arrays
Change-Id: I9ab94413abce0d13102711091ec48a5894ccadd9 Signed-off-by: José Bollo <jose.bollo@iot.bzh>
-rw-r--r--src/afm-udb.c41
1 files changed, 38 insertions, 3 deletions
diff --git a/src/afm-udb.c b/src/afm-udb.c
index 9b1a354..e199ae1 100644
--- a/src/afm-udb.c
+++ b/src/afm-udb.c
@@ -90,6 +90,41 @@ static void apps_put(struct afm_apps *apps)
}
/*
+ * Append the field 'data' to the field 'name' of the 'object'.
+ * When a second append is done to one field, it is automatically
+ * transformed to an array.
+ * Return 0 in case of success or -1 in case of error.
+ */
+static int append_field(
+ struct json_object *object,
+ const char *name,
+ struct json_object *data
+)
+{
+ struct json_object *item, *array;
+
+ if (!json_object_object_get_ex(object, name, &item))
+ json_object_object_add(object, name, data);
+ else {
+ if (json_object_is_type(item, json_type_array))
+ array = item;
+ else {
+ array = json_object_new_array();
+ if (!array)
+ goto error;
+ json_object_array_add(array, item);
+ json_object_object_add(object, name, array);
+ }
+ json_object_array_add(array, data);
+ }
+ return 0;
+ error:
+ json_object_put(data);
+ errno = ENOMEM;
+ return -1;
+}
+
+/*
* Adds the field of 'name' and 'value' in 'priv' and also if possible in 'pub'
* Returns 0 on success or -1 on error.
*/
@@ -121,10 +156,10 @@ static int add_field(
/* add the value */
if (name[0] == '-') {
- json_object_object_add(priv, &name[1], v);
+ append_field(priv, &name[1], v);
} else {
- json_object_object_add(priv, name, json_object_get(v));
- json_object_object_add(pub, name, v);
+ append_field(priv, name, json_object_get(v));
+ append_field(pub, name, v);
}
return 0;
}