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478 lines
21 KiB
478 lines
21 KiB
<?php
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// turn on warnings and notice during developement
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include('initialize/PhpErrorSettings.inc.php');
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// Project: Web Reference Database (refbase) <http://www.refbase.net>
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// Copyright: Matthias Steffens <mailto:refbase@extracts.de> and the file's
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// original author(s).
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//
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// This code is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY. Please see the GNU General Public
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// License for more details.
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//
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// File: ./query_manager.php
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// Repository: $HeadURL: file:///svn/p/refbase/code/branches/bleeding-edge/query_manager.php $
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// Author(s): Matthias Steffens <mailto:refbase@extracts.de>
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//
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// Created: 04-Feb-04, 22:29
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// Modified: $Date: 2017-04-13 02:00:18 +0000 (Thu, 13 Apr 2017) $
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// $Author: karnesky $
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// $Revision: 1416 $
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// This script enables you to manage your custom queries.
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// It offers a form to save the current query or update/delete any of your saved queries.
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// Saved queries are user specific and can be accessed from a popup on the main page.
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// TODO: I18n
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// Incorporate some include files:
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include 'initialize/db.inc.php'; // 'db.inc.php' is included to hide username and password
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include 'includes/header.inc.php'; // include header
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include 'includes/footer.inc.php'; // include footer
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include 'includes/include.inc.php'; // include common functions
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include 'initialize/ini.inc.php'; // include common variables
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// --------------------------------------------------------------------
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// START A SESSION:
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// call the 'start_session()' function (from 'include.inc.php') which will also read out available session variables:
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start_session(true);
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// --------------------------------------------------------------------
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// Initialize preferred display language:
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// (note that 'locales.inc.php' has to be included *after* the call to the 'start_session()' function)
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include 'includes/locales.inc.php'; // include the locales
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// --------------------------------------------------------------------
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// Extract session variables (only necessary if register globals is OFF!):
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if (isset($_SESSION['errors']))
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$errors = $_SESSION['errors'];
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else
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$errors = array(); // initialize variable (in order to prevent 'Undefined index/variable...' messages)
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if (isset($_SESSION['formVars']))
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$formVars = $_SESSION['formVars'];
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else
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$formVars = array(); // initialize variable (in order to prevent 'Undefined index/variable...' messages)
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// The current values of the session variables 'errors' and 'formVars' get stored in '$errors' or '$formVars', respectively. (either automatically if
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// register globals is ON, or explicitly if register globals is OFF [by uncommenting the code above]).
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// We need to clear these session variables here, since they would otherwise be still there on a subsequent call of 'query_manager.php'!
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// Note: though we clear the session variables, the current error message (or form variables) is still available to this script via '$errors' (or '$formVars', respectively).
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deleteSessionVariable("errors"); // function 'deleteSessionVariable()' is defined in 'include.inc.php'
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deleteSessionVariable("formVars");
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// --------------------------------------------------------------------
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// A user must be logged in to save, modify or delete any queries:
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if (!isset($_SESSION['loginEmail']))
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{
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// return an appropriate error message:
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$HeaderString = returnMsg($loc["Warning_LoginToUseSavedQueries"] . "!", "warning", "strong", "HeaderString"); // function 'returnMsg()' is defined in 'include.inc.php'
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// save the URL of the currently displayed page:
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$referer = $_SERVER['HTTP_REFERER'];
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// Write back session variables:
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saveSessionVariable("referer", $referer); // function 'saveSessionVariable()' is defined in 'include.inc.php'
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header("Location: user_login.php");
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exit; // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !EXIT! <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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}
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// --------------------------------------------------------------------
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// Extract the view type requested by the user (either 'Mobile', 'Print', 'Web' or ''):
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// ('' will produce the default 'Web' output style)
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if (isset($_REQUEST['viewType']))
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$viewType = $_REQUEST['viewType'];
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else
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$viewType = "";
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// Check if the script was called with parameters (like: 'query_manager.php?customQuery=1&sqlQuery=...&showQuery=...&showLinks=...')
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// If so, the parameter 'customQuery=1' will be set:
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if (isset($_REQUEST['customQuery']))
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$customQuery = $_REQUEST['customQuery']; // accept any previous SQL queries
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else
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$customQuery = "0";
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if (isset($_REQUEST['queryAction']))
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$queryAction = $_REQUEST['queryAction']; // check whether the user wants to *add* a query or *edit* an existing one
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else
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$queryAction = "add"; // *add* query will be the default action if no parameter is given
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if (isset($_REQUEST['queryID']))
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$queryID = $_REQUEST['queryID']; // fetch the query ID of the query to edit
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else
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$queryID = "";
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// Setup some required variables:
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// If there's no stored message available:
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if (!isset($_SESSION['HeaderString']))
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{
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if (empty($errors)) // provide one of the default messages:
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{
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$errors = array(); // re-assign an empty array (in order to prevent 'Undefined variable "errors"...' messages when calling the 'fieldError' function later on)
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if ($queryAction == "edit") // *edit* query
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$HeaderString = "Edit saved query:";
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else // *add* query will be the default action if no parameter is given
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{
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if ($customQuery == "1") // the script was called with parameters
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$HeaderString = "Save your current query:"; // Provide the default message
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else // the script was called without any custom SQL query
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$HeaderString = "Save a query for later retrieval:"; // Provide the default message
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}
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}
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else // -> there were errors validating the data entered by the user
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$HeaderString = returnMsg($loc["Warning_InputDataError"] . ":", "warning", "strong"); // function 'returnMsg()' is defined in 'include.inc.php'
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}
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else
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{
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$HeaderString = $_SESSION['HeaderString']; // extract 'HeaderString' session variable (only necessary if register globals is OFF!)
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// Note: though we clear the session variable, the current message is still available to this script via '$HeaderString':
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deleteSessionVariable("HeaderString"); // function 'deleteSessionVariable()' is defined in 'include.inc.php'
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}
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// Adjust the page (= button) title & the help text:
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if ($queryAction == "edit") // *edit* query
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{
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$pageTitle = "Edit Query"; // set the correct page title
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$helpText = "Modify the elements of your query as needed and click the <em>Edit Query</em> button. You can change the name of your query, refine the SQL query string or modify any of the display options.";
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}
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else // *add* query
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{
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$pageTitle = "Add Query"; // set the correct page title
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// Adjust the help text:
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if ($customQuery == "1") // if the script was called with parameters
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$helpText = "Name your query and click the <em>Add Query</em> button. If you like, you can refine your query or modify any of the display options before saving.";
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else
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$helpText = "Enter your query and set the display options to suit your needs. Then, name your query and click the <em>Add Query</em> button.";
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}
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// --------------------------------------------------------------------
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if ($queryAction == "edit" && empty($errors))
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{
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$exit = false;
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// CONSTRUCT SQL QUERY:
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// for the selected query, select *all* fields that are available in the form:
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$query = "SELECT query_id, user_id, query_name, display_type, view_type, query, show_query, show_links, show_rows, cite_style_selector, cite_order"
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. " FROM $tableQueries WHERE query_id = " . quote_smart($queryID); // since we'll only fetch one record, the ORDER BY clause is obsolete here
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// (1) OPEN CONNECTION, (2) SELECT DATABASE
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connectToMySQLDatabase(); // function 'connectToMySQLDatabase()' is defined in 'include.inc.php'
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// (3a) RUN the query on the database through the connection:
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$result = queryMySQLDatabase($query); // function 'queryMySQLDatabase()' is defined in 'include.inc.php'
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if (@ mysqli_num_rows($result) == 1) // this condition is added here to avoid the case that editing a query item which got deleted in the meantime invokes a seemingly correct but empty 'edit query' form
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{
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// (3b) EXTRACT results:
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$row = mysqli_fetch_array($result); // fetch the current row into the array $row (it'll be always *one* row, but anyhow)
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// check whether the user tries to edit a query that does not belong to his own set of saved queries:
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if ($row['user_id'] != getUserID($loginEmail)) // the function 'getUserID' and the '$loginEmail' variable are specified in 'include.inc.php'
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{
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$HeaderString = "You can only edit your own queries!";
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$exit = true;
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}
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}
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else // the query did NOT return any results (since we searched for a unique primary key of the queries table, the number of rows found can be only 1 or 0)
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{
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$HeaderString = "The specified query does not exist!";
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$exit = true;
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}
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if ($exit)
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{
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// return an appropriate error message:
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$HeaderString = returnMsg($HeaderString, "warning", "strong", "HeaderString"); // function 'returnMsg()' is defined in 'include.inc.php'
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header("Location: index.php"); // relocate back to the main page
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exit; // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> !EXIT! <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
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}
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}
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// --------------------------------------------------------------------
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// assign correct values to the form variables:
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if (empty($errors))
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{
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if ($queryAction == "edit")
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{
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// fetch attributes of the current query into variables:
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$queryID = $row['query_id'];
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$queryName = $row['query_name'];
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$displayType = $row['display_type'];
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$queryViewType = $row['view_type'];
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$showQuery = $row['show_query'];
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$showLinks = $row['show_links'];
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$showRows = $row['show_rows'];
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$citeStyle = encodeHTML($row['cite_style_selector']);
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$citeOrder = $row['cite_order'];
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$sqlQuery = $row['query'];
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$origQueryName = $row['query_name'];
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}
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else // $queryAction == "add"
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{
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$queryID = "0"; // since '' would cause an SQL error we use '0' to indicate that there's no query ID
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$queryName = "";
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$queryViewType = ""; // ('' will produce the default 'Web' view)
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$origQueryName = "";
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if ($customQuery == "1") // the script was called with parameters
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{
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$displayType = $_REQUEST['displayType']; // extract the type of display requested by the user (either 'Display', 'Cite' or '')
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$showQuery = $_REQUEST['showQuery']; // extract the $showQuery parameter
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$showLinks = $_REQUEST['showLinks']; // extract the $showLinks parameter
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$showRows = $_REQUEST['showRows']; // extract the $showRows parameter
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$citeStyle = $_REQUEST['citeStyle']; // get the cite style chosen by the user (only occurs in 'extract.php' form and in query result lists)
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$citeOrder = $_REQUEST['citeOrder']; // get the citation sort order chosen by the user (only occurs in 'extract.php' form and in query result lists)
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$sqlQuery = $_REQUEST['sqlQuery']; // accept any previous SQL queries
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$sqlQuery = stripSlashesIfMagicQuotes($sqlQuery); // function 'stripSlashesIfMagicQuotes()' is defined in 'include.inc.php'
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}
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else // if there was no previous SQL query provide the default query and options:
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{
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$displayType = ""; // ('' will produce the default view)
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$showQuery = "0";
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$showLinks = "1";
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$showRows = $_SESSION['userRecordsPerPage']; // get the default number of records per page preferred by the current user
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$citeStyle = "";
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$citeOrder = "";
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// TODO: build the complete SQL query using functions 'buildFROMclause()' and 'buildORDERclause()'
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$sqlQuery = buildSELECTclause($displayType, $showLinks, "created_by, modified_date, modified_time, modified_by", false, false, $defaultFieldsListViewMajor); // function 'buildSELECTclause()' is defined in 'include.inc.php', and '$defaultFieldsListViewMajor' is defined in 'ini.inc.php'
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$sqlQuery .= " FROM $tableRefs WHERE modified_date = CURDATE() ORDER BY modified_date DESC, modified_time DESC";
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}
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}
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}
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else // there were some errors on submit
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{
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// load the form data that were entered by the user:
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$queryID = $formVars['queryID'];
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$queryName = $formVars['queryName'];
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$displayType = $formVars['displayType'];
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$queryViewType = $formVars['queryViewType'];
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if (isset($formVars['showQuery']))
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$showQuery = $formVars['showQuery'];
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else
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$showQuery = "";
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if (isset($formVars['showLinks']))
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$showLinks = $formVars['showLinks'];
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else
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$showLinks = "";
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$showRows = $formVars['showRows'];
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if (isset($formVars['citeStyle']))
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$citeStyle = $formVars['citeStyle'];
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else
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$citeStyle = "";
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if (preg_match("/%20/", $citeStyle)) // if '$citeStyle' still contains URL encoded data... ('%20' is the URL encoded form of a space, see note below!)
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$citeStyle = rawurldecode($citeStyle); // ...URL decode 'citeStyle' statement (it was URL encoded before incorporation into a hidden tag of the 'sqlSearch' form to avoid any HTML syntax errors)
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// NOTE: URL encoded data that are included within a *link* will get URL decoded automatically *before* extraction via '$_REQUEST'!
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// But, opposed to that, URL encoded data that are included within a form by means of a *hidden form tag* will NOT get URL decoded automatically! Then, URL decoding has to be done manually (as is done here)!
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$citeOrder = $formVars['citeOrder'];
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$sqlQuery = $formVars['sqlQuery'];
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$sqlQuery = stripSlashesIfMagicQuotes($sqlQuery); // function 'stripSlashesIfMagicQuotes()' is defined in 'include.inc.php'
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if (isset($formVars['origQueryName']))
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$origQueryName = rawurldecode($formVars['origQueryName']); // get the original query name that was included within a hidden form tag (and since it got URL encoded, we'll need to decode it again)
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else
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$origQueryName = "";
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}
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// set display options according to the fetched attribute values:
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if ($showQuery == "1")
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$checkQuery = " checked";
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else
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$checkQuery = "";
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if ($showLinks == "1")
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$checkLinks = " checked";
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else
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$checkLinks = "";
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if (preg_match("/^Print$/i", $queryViewType))
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{
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$webViewTypeSelected = "";
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$printViewTypeSelected = " selected";
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$mobileViewTypeSelected = "";
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}
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elseif (preg_match("/^Mobile$/i", $queryViewType))
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{
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$webViewTypeSelected = "";
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$printViewTypeSelected = "";
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$mobileViewTypeSelected = " selected";
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}
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else // '$queryViewType' is 'Web' or ''
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{
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$webViewTypeSelected = " selected";
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$printViewTypeSelected = "";
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$mobileViewTypeSelected = "";
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}
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// Show the login status:
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showLogin(); // (function 'showLogin()' is defined in 'include.inc.php')
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// (2a) Display header:
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// call the 'displayHTMLhead()' and 'showPageHeader()' functions (which are defined in 'header.inc.php'):
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displayHTMLhead(encodeHTML($officialDatabaseName) . " -- " . $pageTitle, "index,follow", "Manage queries that are used to search the " . encodeHTML($officialDatabaseName), "", false, "", $viewType, array());
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showPageHeader($HeaderString);
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// (2b) Start <form> and <table> holding the form elements:
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// note: we provide a default value for the 'submit' form tag so that hitting <enter> within a text entry field will act as if the user clicked the 'Add/Edit Query' button
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?>
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<form action="query_modify.php" method="POST" name="saveQuery">
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<input type="hidden" name="formType" value="saveQuery">
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<input type="hidden" name="submit" value="<?php echo $pageTitle; ?>">
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<input type="hidden" name="queryAction" value="<?php echo encodeHTML($queryAction); ?>">
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<input type="hidden" name="queryID" value="<?php echo encodeHTML($queryID); ?>">
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<input type="hidden" name="displayType" value="<?php echo encodeHTML($displayType); ?>">
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<input type="hidden" name="citeStyle" value="<?php echo rawurlencode($citeStyle); ?>">
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<input type="hidden" name="citeOrder" value="<?php echo encodeHTML($citeOrder); ?>">
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<input type="hidden" name="origQueryName" value="<?php echo rawurlencode($origQueryName); ?>">
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<table align="center" border="0" cellpadding="0" cellspacing="10" width="95%" summary="This table holds forms that enable you to manage your custom queries">
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<tr>
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<td width="120" valign="middle">
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<div class="sect"><?php echo $loc["QueryName"]; ?>:</div>
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</td>
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<td><?php echo fieldError("queryName", $errors); ?>
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<input type="text" name="queryName" value="<?php echo encodeHTML($queryName); ?>" size="62">
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</td>
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</tr>
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<tr>
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<td> </td>
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<td>
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<input type="submit" name="submit" value="<?php echo $pageTitle; ?>"><?php
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if ($queryAction == "edit") // add a DELETE button (CAUTION: the delete button must be displayed *AFTER* the edit button, otherwise DELETE will be the default action if the user hits return!!)
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// (this is since the first displayed submit button represents the default submit action in several browsers!! [like OmniWeb or Mozilla])
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{
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?>
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<input type="submit" name="submit" value="Delete Query"><?php
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}
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?>
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</td>
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</tr>
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</table>
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<table class="showhide" align="center" border="0" cellpadding="0" cellspacing="10" width="95%">
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<tr>
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<td class="small" width="120" valign="top">
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<a href="javascript:toggleVisibility('searchopt','optToggleimg','optToggletxt','<?php echo rawurlencode($loc["SearchAndDisplayOptions"]); ?>')"<?php echo addAccessKey("attribute", "search_opt"); ?> title="<?php echo $loc["LinkTitle_ToggleVisibility"] . addAccessKey("title", "search_opt"); ?>">
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<img id="optToggleimg" class="toggleimg" src="img/closed.gif" alt="<?php echo $loc["LinkTitle_ToggleVisibility"]; ?>" width="9" height="9" hspace="0" border="0">
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<span id="optToggletxt" class="toggletxt"><?php echo $loc["SearchAndDisplayOptions"]; ?></span>
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</a>
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</td>
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</tr>
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</table>
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<table id="searchopt" align="center" border="0" cellpadding="0" cellspacing="10" width="95%" summary="This table holds search & display options" style="display: none;">
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<tr>
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<td width="120" valign="top">
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<div class="sect"><?php echo $loc["SQLQuery"]; ?>:</div>
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</td>
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<td colspan="2"><?php echo fieldError("sqlQuery", $errors); ?>
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<textarea name="sqlQuery" rows="6" cols="60"><?php echo encodeHTML($sqlQuery); ?>
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</textarea>
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</td>
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</tr>
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<tr>
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<td valign="middle">
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<div class="sect"><?php echo $loc["DisplayOptions"]; ?>:</div>
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</td>
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<td width="205" valign="middle">
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<input type="checkbox" name="showLinks" value="1"<?php echo $checkLinks; ?>> <?php echo $loc["ShowLinks"]; ?>
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</td>
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<td valign="middle">
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<?php echo $loc["ShowRecordsPerPage_Prefix"]; ?> <input type="text" name="showRows" value="<?php echo encodeHTML($showRows); ?>" size="4" title="<?php echo $loc["DescriptionShowRecordsPerPage"]; ?>"> <?php echo $loc["ShowRecordsPerPage_Suffix"]; ?>
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</td>
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</tr>
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<tr>
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<td> </td>
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<td valign="top">
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<input type="checkbox" name="showQuery" value="1"<?php echo $checkQuery; ?>> <?php echo $loc["DisplaySQLquery"]; ?>
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</td>
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<td valign="top">
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<?php echo $loc["ViewType"]; ?>:
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<select name="queryViewType">
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<option value="Web"<?php echo $webViewTypeSelected; ?>><?php echo $loc["web"]; ?></option>
|
|
<option value="Print"<?php echo $printViewTypeSelected; ?>><?php echo $loc["print"]; ?></option>
|
|
<option value="Mobile"<?php echo $mobileViewTypeSelected; ?>><?php echo $loc["mobile"]; ?></option>
|
|
</select>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
<table class="showhide" align="center" border="0" cellpadding="0" cellspacing="10" width="95%">
|
|
<tr>
|
|
<td class="small" width="120" valign="top">
|
|
<a href="javascript:toggleVisibility('helptxt','helpToggleimg','helpToggletxt','<?php echo rawurlencode($loc["Help"]); ?>')"<?php echo addAccessKey("attribute", "search_help"); ?> title="<?php echo $loc["LinkTitle_ToggleVisibility"] . addAccessKey("title", "search_help"); ?>">
|
|
<img id="helpToggleimg" class="toggleimg" src="img/closed.gif" alt="<?php echo $loc["LinkTitle_ToggleVisibility"]; ?>" width="9" height="9" hspace="0" border="0">
|
|
<span id="helpToggletxt" class="toggletxt"><?php echo $loc["Help"]; ?></span>
|
|
</a>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
<table id="helptxt" align="center" border="0" cellpadding="0" cellspacing="10" width="95%" summary="This table holds some help text and example queries" style="display: none;">
|
|
<tr>
|
|
<td width="120" valign="top">
|
|
<div class="sect"><?php echo $loc["Help"]; ?>:</div>
|
|
</td>
|
|
<td class="helpbody" valign="top">
|
|
<div class="even">
|
|
<?php echo $helpText; ?>
|
|
|
|
</div>
|
|
<div class="odd">
|
|
<?php echo $loc["MySQL-Info"]; ?>
|
|
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
</form><?php
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
// SHOW ERROR IN RED:
|
|
function fieldError($fieldName, $errors)
|
|
{
|
|
if (isset($errors[$fieldName]))
|
|
return returnMsg($errors[$fieldName], "warning2", "strong", "", "", "<br>"); // function 'returnMsg()' is defined in 'include.inc.php'
|
|
}
|
|
|
|
// --------------------------------------------------------------------
|
|
|
|
// DISPLAY THE HTML FOOTER:
|
|
// call the 'showPageFooter()' and 'displayHTMLfoot()' functions (which are defined in 'footer.inc.php')
|
|
showPageFooter($HeaderString);
|
|
|
|
displayHTMLfoot();
|
|
|
|
// --------------------------------------------------------------------
|
|
?>
|