db: add lookup function for token family key

1 files changed, 26 insertions, 1 deletions

diff --git a/src/include/taler_merchantdb_plugin.h b/src/include/taler_merchantdb_plugin.h
index 316b8678..c7ff7463 100644
--- a/src/include/taler_merchantdb_plugin.h
+++ b/src/include/taler_merchantdb_plugin.h
@@ -23,6 +23,7 @@
 #ifndef TALER_MERCHANTDB_PLUGIN_H
 #define TALER_MERCHANTDB_PLUGIN_H
 
+#include <gnunet/gnunet_common.h>
 #include <gnunet/gnunet_util_lib.h>
 #include <gnunet/gnunet_db_lib.h>
 #include <taler/taler_exchange_service.h>
@@ -1079,14 +1080,20 @@ struct TALER_MERCHANTDB_TokenFamilyKeyDetails
   struct TALER_TokenFamilyPublicKey pub;
 
   /**
+   * TODO: Remove this separate field, since it's already available within pub.
    * Hash of the token family public key.
    */
   struct TALER_TokenFamilyPublicKeyHash pub_h;
 
   /**
    * Token family private key.
-  */
+   */
   struct TALER_TokenFamilyPrivateKey priv;
+
+  /**
+   * Details about the token family this key belongs to.
+   */
+  struct TALER_MERCHANTDB_TokenFamilyDetails token_family;
 };
 
 /**
@@ -3229,6 +3236,24 @@ struct TALER_MERCHANTDB_Plugin
     const char *token_family_slug,
     const struct TALER_MERCHANTDB_TokenFamilyDetails *details);
 
+
+  /**
+  * Lookup details about a particular token family public key.
+  *
+  * @param cls closure
+  * @param instance_id instance to lookup token family for
+  * @param h_public_key hash of token family public key to lookup
+  * @param[out] details set to the token family key details on success, can be NULL
+  *             (in that case we only want to check if the token family key exists)
+  * @return database result code
+  */
+  enum GNUNET_DB_QueryStatus
+  (*lookup_token_family_key) (
+    void *cls,
+    const char *instance_id,
+    struct GNUNET_HashCode *h_public_key,
+    struct TALER_MERCHANTDB_TokenFamilyKeyDetails *details);
+
   /**
    * Lookup deposits that are finished and awaiting a wire transfer.
    *