Add code to extract the date terms from a query.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/branches/gnucash-gnome2-dev@9438 57a11ea4-9604-0410-9ed3-97b8803252fd

src/engine/Query.c

@@ -395,6 +395,32 @@ xaccQueryAddDateMatchTS (Query * q,
   qof_query_destroy (tmp_q);
 }
 
+void
+xaccQueryGetDateMatchTS (Query * q, 
+			 Timespec * sts,
+			 Timespec * ets)
+{
+  QofQueryPredData *term_data;
+  GSList *param_list;
+  GSList *terms, *tmp;
+
+  sts->tv_sec = sts->tv_nsec = 0;
+  ets->tv_sec = ets->tv_nsec = 0;
+
+  param_list = qof_query_build_param_list (SPLIT_TRANS, TRANS_DATE_POSTED, NULL);
+  terms = qof_query_get_term_type (q, param_list);
+  g_slist_free(param_list);
+
+  for (tmp = terms; tmp; tmp = g_slist_next(tmp)) {
+    term_data = tmp->data;
+    if (term_data->how == QOF_COMPARE_GTE)
+      qof_query_date_predicate_get_date(term_data, sts);
+    if (term_data->how == QOF_COMPARE_LTE)
+      qof_query_date_predicate_get_date(term_data, ets);
+  }
+  g_slist_free(terms);
+}
+
 /********************************************************************
  * xaccQueryAddDateMatch
  * Add a date filter to an existing query. 
@@ -442,6 +468,20 @@ xaccQueryAddDateMatchTT(Query * q,
   
 }
 
+void
+xaccQueryGetDateMatchTT (Query * q, 
+                        time_t * stt,
+                        time_t * ett)
+{
+  Timespec   sts;
+  Timespec   ets;
+
+  xaccQueryGetDateMatchTS (q, &sts, &ets);
+
+  *stt = sts.tv_sec;
+  *ett = ets.tv_sec;
+}
+
 void
 xaccQueryAddClearedMatch(Query * q, cleared_match_t how, QofQueryOp op)
 {

src/engine/Query.h

@@ -188,6 +188,13 @@ void xaccQueryAddDateMatchTT(Query * q,
                              int use_start, time_t stt, 
                              int use_end, time_t ett,
                              QofQueryOp op);
+void xaccQueryGetDateMatchTS (Query * q, 
+			      Timespec * sts,
+			      Timespec * ets);
+void xaccQueryGetDateMatchTT (Query * q, 
+			      time_t * stt,
+			      time_t * ett);
+
 typedef enum {
   CLEARED_NONE       = 0x0000,
   CLEARED_NO         = 0x0001,

src/engine/qofquery.c

@@ -893,6 +893,26 @@ gboolean qof_query_has_term_type (QofQuery *q, GSList *term_param)
   return FALSE;
 }
 
+GSList * qof_query_get_term_type (QofQuery *q, GSList *term_param)
+{
+  GList *or;
+  GList *and;
+  GSList *results = NULL;
+
+  if (!q || !term_param)
+    return FALSE;
+
+  for(or = q->terms; or; or = or->next) {
+    for(and = or->data; and; and = and->next) {
+      QofQueryTerm *qt = and->data;
+      if (!param_list_cmp (term_param, qt->param_list))
+        results = g_slist_append(results, qt->pdata);
+    }
+  }
+
+  return results;
+}
+
 void qof_query_destroy (QofQuery *q)
 {
   if (!q) return;

src/engine/qofquery.h

@@ -152,6 +152,7 @@ int qof_query_has_terms (QofQuery *q);
 int qof_query_num_terms (QofQuery *q);
 
 gboolean qof_query_has_term_type (QofQuery *q, GSList *term_param);
+GSList * qof_query_get_term_type (QofQuery *q, GSList *term_param);
 
 QofQuery * qof_query_copy (QofQuery *q);
 QofQuery * qof_query_invert(QofQuery *q);

src/engine/qofquerycore.c

@@ -372,6 +372,17 @@ qof_query_date_predicate (QofQueryCompare how,
   return ((QofQueryPredData*)pdata);
 }
 
+gboolean
+qof_query_date_predicate_get_date (QofQueryPredData *pd, Timespec *date)
+{
+  query_date_t pdata = (query_date_t)pd;
+
+  if (pdata->pd.type_name != query_date_type)
+    return FALSE;
+  *date = pdata->date;
+  return TRUE;
+}
+
 static char * date_to_string (gpointer object, QofAccessFunc get)
 {
   Timespec ts = ((query_date_getter)get)(object);

src/engine/qofquerycore.h

@@ -144,6 +144,9 @@ QofQueryPredData *qof_query_core_predicate_copy (QofQueryPredData *pdata);
 /** Destroy a predicate. */
 void qof_query_core_predicate_free (QofQueryPredData *pdata);
 
+/** Retrieve a predicate. */
+gboolean qof_query_date_predicate_get_date (QofQueryPredData *data, Timespec *date);
+
 /** Return a printable string for a core data object.  Caller needs
  *  to g_free() the returned string.
  */