reset stmt when done (#305)

Author: ruslandoga

c_src/sqlite3_nif.c

@@ -639,6 +639,7 @@ exqlite_multi_step(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
                 return am_busy;
 
             case SQLITE_DONE:
+                sqlite3_reset(statement->statement);
                 return enif_make_tuple2(env, am_done, rows);
 
             case SQLITE_ROW:
@@ -683,10 +684,13 @@ exqlite_step(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
               am_row,
               make_row(env, statement->statement));
         case SQLITE_BUSY:
+            sqlite3_reset(statement->statement);
             return am_busy;
         case SQLITE_DONE:
+            sqlite3_reset(statement->statement);
             return am_done;
         default:
+            sqlite3_reset(statement->statement);
             return make_sqlite3_error_tuple(env, rc, conn->db);
     }
 }

lib/exqlite/sqlite3.ex

@@ -177,7 +177,6 @@ defmodule Exqlite.Sqlite3 do
     args_count = length(args)
 
     if args_count == params_count do
-      reset(stmt)
       bind_all(args, stmt, 1)
     else
       raise ArgumentError, "expected #{params_count} arguments, got #{args_count}"