static xmms_fetch_spec_t *
xmms_fetch_spec_new_organize (xmmsv_t *fetch, xmms_fetch_info_t *info,
s4_sourcepref_t *prefs, xmms_error_t *err)
{
xmms_fetch_spec_t *spec;
xmmsv_dict_iter_t *it;
s4_sourcepref_t *sp;
xmmsv_t *org_data;
gint org_idx;
if (!xmmsv_dict_get (fetch, "data", &org_data)) {
xmms_error_set (err, XMMS_ERROR_INVAL, "Required field 'data' not set in organize.");
return NULL;
}
if (xmmsv_get_type (org_data) != XMMSV_TYPE_DICT) {
xmms_error_set (err, XMMS_ERROR_INVAL, "Field 'data' in organize must be a dict.");
return NULL;
}
sp = normalize_source_preferences (fetch, prefs, err);
if (xmms_error_iserror (err)) {
return NULL;
}
spec = g_new0 (xmms_fetch_spec_t, 1);
spec->type = FETCH_ORGANIZE;
spec->data.organize.count = xmmsv_dict_get_size (org_data);
spec->data.organize.keys = g_new0 (const char *, spec->data.organize.count);
spec->data.organize.data = g_new0 (xmms_fetch_spec_t *, spec->data.organize.count);
org_idx = 0;
xmmsv_get_dict_iter (org_data, &it);
while (xmmsv_dict_iter_valid (it)) {
xmms_fetch_spec_t *orgee;
const gchar *str;
xmmsv_t *entry;
xmmsv_dict_iter_pair (it, &str, &entry);
orgee = xmms_fetch_spec_new (entry, info, sp, err);
if (xmms_error_iserror (err)) {
xmms_fetch_spec_free (spec);
spec = NULL;
break;
}
spec->data.organize.keys[org_idx] = str;
spec->data.organize.data[org_idx] = orgee;
org_idx++;
xmmsv_dict_iter_next (it);
}
xmmsv_dict_iter_explicit_destroy (it);
s4_sourcepref_unref (sp);
return spec;
}
/**
* Queries the medialib and returns an xmmsv_t with the info requested
*
* @param coll The collection to find
* @param fetch Specifies what to fetch
* @return An xmmsv_t with the structure requested in fetch
*/
xmmsv_t *
xmms_medialib_query (xmms_medialib_session_t *session, xmmsv_t *coll,
xmmsv_t *fetch, xmms_error_t *err)
{
s4_sourcepref_t *sourcepref;
s4_resultset_t *set;
xmmsv_t *ret;
xmms_fetch_info_t *info;
xmms_fetch_spec_t *spec;
xmms_error_reset (err);
sourcepref = xmms_medialib_session_get_source_preferences (session);
info = xmms_fetch_info_new (sourcepref);
spec = xmms_fetch_spec_new (fetch, info, sourcepref, err);
s4_sourcepref_unref (sourcepref);
if (spec == NULL) {
xmms_fetch_spec_free (spec);
xmms_fetch_info_free (info);
return NULL;
}
set = xmms_medialib_query_recurs (session, coll, info);
ret = xmms_medialib_query_to_xmmsv (set, spec);
s4_resultset_free (set);
xmms_fetch_spec_free (spec);
xmms_fetch_info_free (info);
if (ret == NULL) {
if (err) {
xmms_error_set (err, XMMS_ERROR_NOENT, "Failed to retrieve query "
"result. This is probably a bug in xmms2d.");
}
return NULL;
}
xmms_medialib_session_track_garbage (session, ret);
return ret;
}
/**
* Decodes a cluster fetch specification from a dictionary.
* The 'cluster-by' must be one of 'id', 'position' or 'value'. If set
* to 'value', then an additional 'cluster-field' will be used to specify
* which meta data attribute to cluster on.
*/
static xmms_fetch_spec_t *
xmms_fetch_spec_new_cluster (xmmsv_t *fetch, xmms_fetch_info_t *info,
s4_sourcepref_t *prefs, xmms_error_t *err)
{
xmmsv_t *cluster_by, *cluster_field, *cluster_data;
xmms_fetch_spec_t *data, *spec = NULL;
s4_sourcepref_t *sp;
const gchar *value = NULL;
const gchar *field = NULL;
const gchar *fallback = NULL;
gint cluster_type;
if (!xmmsv_dict_get (fetch, "cluster-by", &cluster_by)) {
cluster_by = xmmsv_new_string ("value");
xmmsv_dict_set (fetch, "cluster-by", cluster_by);
xmmsv_unref (cluster_by);
}
if (!xmmsv_dict_entry_get_string (fetch, "cluster-by", &value)) {
const gchar *message = "'cluster-by' must be a string.";
xmms_error_set (err, XMMS_ERROR_INVAL, message);
return NULL;
}
xmmsv_get_string (cluster_by, &value);
if (!cluster_by_from_string (value, &cluster_type)) {
const gchar *message = "'cluster-by' must be 'id', 'position', or 'value'.";
xmms_error_set (err, XMMS_ERROR_INVAL, message);
return NULL;
}
if (cluster_type == CLUSTER_BY_VALUE) {
if (!xmmsv_dict_entry_get_string (fetch, "cluster-field", &field)) {
const gchar *message = "'cluster-field' must if 'cluster-by' is 'value'.";
xmms_error_set (err, XMMS_ERROR_INVAL, message);
return NULL;
}
}
if (!xmmsv_dict_get (fetch, "data", &cluster_data)) {
const gchar *message = "Required field 'data' not set in cluster.";
xmms_error_set (err, XMMS_ERROR_INVAL, message);
return NULL;
}
if (xmmsv_dict_entry_get_type (fetch, "cluster-fallback") == XMMSV_TYPE_NONE) {
fallback = NULL;
} else if (!xmmsv_dict_entry_get_string (fetch, "cluster-fallback", &fallback)) {
const gchar *message = "Optional field 'default' must be a string.";
xmms_error_set (err, XMMS_ERROR_INVAL, message);
return NULL;
}
sp = normalize_source_preferences (fetch, prefs, err);
if (xmms_error_iserror (err)) {
return NULL;
}
data = xmms_fetch_spec_new (cluster_data, info, sp, err);
if (xmms_error_iserror (err)) {
s4_sourcepref_unref (sp);
return NULL;
}
spec = g_new0 (xmms_fetch_spec_t, 1);
spec->data.cluster.data = data;
spec->data.cluster.type = cluster_type;
spec->data.cluster.fallback = fallback;
switch (spec->data.cluster.type) {
case CLUSTER_BY_ID:
spec->data.cluster.column = xmms_fetch_info_add_song_id(info, cluster_field);
break;
case CLUSTER_BY_VALUE:
xmmsv_dict_get (fetch, "cluster-field", &cluster_field);
spec->data.cluster.column = xmms_fetch_info_add_key (info, cluster_field,
field, sp);
break;
case CLUSTER_BY_POSITION:
/* do nothing */
break;
default:
g_assert_not_reached ();
}
s4_sourcepref_unref (sp);
return spec;
}
