if( idx>=nField ){
    Th_ErrorMessage(g.interp, "no such TICKET column: ", argv[1], argl[1]);
    return TH_ERROR;
  }
  azAppend[idx] = mprintf("%.*s", argl[2], argv[2]);
  return TH_OK;
}

/*
** Write a ticket into the repository.
*/
static void ticket_put(Blob *pTicket, const char *zTktId, int needMod){
  int rid = content_put_ex(pTicket, 0, 0, 0, needMod);
  if( rid==0 ){
    fossil_panic("trouble committing ticket: %s", g.zErrMsg);
  }
  if( needMod ){
    moderation_table_create();
    db_multi_exec(
      "INSERT INTO modreq(objid, tktid) VALUES(%d,'%s')",
      rid, zTktId
    );
  }else{
    db_multi_exec("INSERT INTO unsent VALUES(%d);", rid);
    db_multi_exec("INSERT INTO unclustered VALUES(%d);", rid);
  }
  manifest_crosslink_begin();
  manifest_crosslink(rid, pTicket);
  assert( blob_is_reset(pTicket) );
  manifest_crosslink_end();
}

/*
** Subscript command:   submit_ticket
**
** Construct and submit a new ticket artifact.  The fields of the artifact
** are the names of the columns in the TICKET table.  The content is
** taken from TH variables.  If the content is unchanged, the field is

    @ <hr /></font>
    return TH_OK;
  }else if( g.thTrace ){
    Th_Trace("submit_ticket {\n<blockquote><pre>\n%h\n</pre></blockquote>\n"
             "}<br />\n",
       blob_str(&tktchng));
  }else{
    rid = content_put(&tktchng);
    ticket_put(&tktchng, zUuid, g.perm.ModTkt==0);
    if( rid==0 ){
      fossil_panic("trouble committing ticket: %s", g.zErrMsg);
    }
    manifest_crosslink_begin();
    manifest_crosslink(rid, &tktchng);
    assert( blob_is_reset(&tktchng) );
    manifest_crosslink_end();
  }
  return ticket_change();
}


/*
** WEBPAGE: tktnew

                       azField[i], strlen(zValue), zValue);
        }
      }
      blob_appendf(&tktchng, "K %s\n", zTktUuid);
      blob_appendf(&tktchng, "U %F\n", zUser);
      md5sum_blob(&tktchng, &cksum);
      blob_appendf(&tktchng, "Z %b\n", &cksum);
      rid = content_put(&tktchng);
      ticket_put(&tktchng, zTktUuid, 0);
      if( rid==0 ){
        fossil_panic("trouble committing ticket: %s", g.zErrMsg);
      }
      manifest_crosslink_begin();
      manifest_crosslink(rid, &tktchng);
      manifest_crosslink_end();
      assert( blob_is_reset(&tktchng) );
      printf("ticket %s succeeded for %s\n",
             (eCmd==set?"set":"add"),zTktUuid);
    }
  }
}