RFE#861: Simulate UPDATE queries.

Signed-off-by: Ashutosh Dhundhara <[email protected]> Show 'Simulate query' button only in case of UPDATE and DELETE. Signed-off-by: Ashutosh Dhundhara <[email protected]> Fix code style. Signed-off-by: Ashutosh Dhundhara <[email protected]>
hamzah39 · Jun 19, 2014 · 8a46508 · 8a46508
1 parent 9fc8156
commit 8a46508
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Showing 5 changed files with 399 additions and 3 deletions.
diff --git a/import.php b/import.php
@@ -18,6 +18,15 @@
     $GLOBALS['show_as_php'] = $_REQUEST['show_as_php'];
 }
 
+// Import functions.
+require_once 'libraries/import.lib.php';
+
+// If there is a request to 'Simulate DML'.
+if (isset($_REQUEST['simulate_dml'])) {
+    PMA_handleSimulateDMLRequest();
+    exit;
+}
+
 /**
  * Sets globals from $_POST
  */
@@ -167,9 +176,6 @@
 // We don't want anything special in format
 $format = PMA_securePath($format);
 
-// Import functions
-require_once 'libraries/import.lib.php';
-
 // Create error and goto url
 if ($import_type == 'table') {
     $err_url = 'tbl_import.php?' . PMA_URL_getCommon($db, $table);

diff --git a/js/functions.js b/js/functions.js
@@ -813,6 +813,37 @@ function setQuery(query)
     }
 }
 
+/**
+ * Handles 'Simulate query' button on SQL query box.
+ *
+ * @return void
+ */
+function PMA_handleSimulateQueryButton()
+{
+    var update_re = new RegExp('^\\s*UPDATE\\s+((`[^`]+`)|([A-Za-z0-9_$]+))\\s+SET\\s', 'i');
+    var delete_re = new RegExp('^\\s*DELETE\\s+FROM\\s', 'i');
+    var query = '';
+
+    if (codemirror_editor) {
+        query = codemirror_editor.getValue();
+    } else {
+        query = $('#sqlquery').val();
+    }
+
+    if (update_re.test(query) || delete_re.test(query)) {
+        if (! $('#simulate_dml').length) {
+            $('#button_submit_query')
+            .before('<input type="button" id="simulate_dml"' +
+                'tabindex="199" value="' +
+                PMA_messages.strSimulateDML +
+                '" />');
+        }
+    } else {
+        if ($('#simulate_dml').length) {
+            $('#simulate_dml').remove();
+        }
+    }
+}
 
 /**
   * Create quick sql statements.
@@ -1477,6 +1508,7 @@ AJAX.registerOnload('functions.js', function () {
 
     $('input.sqlbutton').click(function (evt) {
         insertQuery(evt.target.id);
+        PMA_handleSimulateQueryButton();
         return false;
     });
 

diff --git a/js/messages.php b/js/messages.php
@@ -57,6 +57,11 @@
 /* For Preview SQL*/
 $js_messages['strPreviewSQL'] = __('Preview SQL');
 
+/* For Simulate DML*/
+$js_messages['strSimulateDML'] = __('Simulate query');
+$js_messages['strMatchedRows'] = __('Matched rows:');
+$js_messages['strSQLQuery'] = __('SQL query:');
+
 /* Charts */
 /* l10n: Default label for the y-Axis of Charts */
 $js_messages['strYValues'] = __('Y Values');

diff --git a/js/sql.js b/js/sql.js
@@ -97,6 +97,8 @@ AJAX.registerTeardown('sql.js', function () {
     $(window).unbind('scroll');
     $(".filter_rows").die("keyup");
     $('body').off('click','a.browse_foreign');
+    $('body').off('click', '#simulate_dml');
+    $('body').off('keyup', '#sqlqueryform');
 });
 
 /**
@@ -433,6 +435,91 @@ AJAX.registerOnload('sql.js', function () {
         $target_table.find("th.dummy_th").remove();
     });
     // Filter row handling. --ENDS--
+
+    $('body').on('keyup', '#sqlqueryform', function () {
+        PMA_handleSimulateQueryButton();
+    });
+
+    /**
+     * Ajax event handler for 'Simulate DML'.
+     */
+    $('body').on('click', '#simulate_dml', function () {
+        var $form = $('#sqlqueryform');
+        var query = '';
+        var delimiter = $('#id_sql_delimiter').val();
+        var db_name = $form.find('input[name="db"]').val();
+
+        if (codemirror_editor) {
+            query = codemirror_editor.getValue();
+        } else {
+            query = $('#sqlquery').val();
+        }
+
+        if (query.length === 0) {
+            alert(PMA_messages.strFormEmpty);
+            $('#sqlquery').focus();
+            return false;
+        }
+
+        var $msgbox = PMA_ajaxShowMessage();
+        $.ajax({
+            type: 'POST',
+            url: $form.attr('action'),
+            data: {
+                token: $form.find('input[name="token"]').val(),
+                db: db_name,
+                ajax_request: '1',
+                simulate_dml: '1',
+                sql_query: query,
+                sql_delimiter: delimiter
+            },
+            success: function (response) {
+                PMA_ajaxRemoveMessage($msgbox);
+                if (response.success) {
+                    var dialog_content = '<div class="preview_sql">';
+                    if (response.sql_data) {
+                        var len = response.sql_data.length;
+                        for (var i=0; i<len; i++) {
+                            dialog_content += '<strong>' + PMA_messages.strSQLQuery +
+                                '</strong>' + response.sql_data[i].sql_query +
+                                PMA_messages.strMatchedRows +
+                                ' <a href="' + response.sql_data[i].matched_rows_url +
+                                '">' + response.sql_data[i].matched_rows + '</a><br>';
+                            if (i<len-1) {
+                                dialog_content += '<hr>';
+                            }
+                        }
+                    } else {
+                        dialog_content += response.message;
+                    }
+                    dialog_content += '</div>';
+                    $dialog_content = $(dialog_content);
+                    var button_options = {};
+                    button_options[PMA_messages.strClose] = function () {
+                        $(this).dialog('close');
+                    };
+                    var $response_dialog = $('<div />').append($dialog_content).dialog({
+                        minWidth: 540,
+                        maxHeight: 400,
+                        modal: true,
+                        buttons: button_options,
+                        title: PMA_messages.strSimulateDML,
+                        open: function () {
+                            PMA_highlightSQL($(this));
+                        },
+                        close: function () {
+                            $(this).remove();
+                        }
+                    });
+                } else {
+                    PMA_ajaxShowMessage(response.error);
+                }
+            },
+            error: function (response) {
+                PMA_ajaxShowMessage(PMA_messages.strErrorProcessingRequest);
+            }
+        });
+    });
 }); // end $()
 
 /**