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PostgreSQL PHP Generator FAQ

You are welcome to look through the following Frequently Asked Questions list for getting to know the answers to the most commonly asked questions about PostgreSQL PHP Generator.

If you want to ask a question which is not in the list you may apply to our support team.

What is PostgreSQL PHP Generator?
PostgreSQL PHP Generator is a powerful PostgreSQL GUI frontend that allows you to generate PHP scripts for working with tables, views and queries through the web. The final scripts provide all the features you would expect from a professional web database application: data navigation, data editing, sorting, filtering, exporting, etc.
Would it be possible to take a look at a sample web application built by this tool?
Yes, certainly. Enjoy our online demo. Also you can download the appropriate project file to get familiar with lots of the PostgreSQL PHP Generator features.
What is the difference between Freeware and Professional versions of PostgreSQL PHP Generator?
Please find all the differences in the feature matrix.
How to send a bug report from the program?

To send a bug report, click the More button at the bottom of the main window, then select the appropriate command from the menu, describe the issue and press the Send report button in the dialog window to send the prepared report with your default email client.

Send a bug report

If you have any problem sending the report directly from PostgreSQL PHP Generator, you can save it to a file and then send that file to as an email attachment.

Is it possible to get a list of changes made in the minor versions?
Yes, there is the complete changelog.
How can I save my work between PostgreSQL PHP Generator sessions?
Click the More button at the last wizard step and select the Save Project item to save the current configuration.
Is it possible to create web pages with html logos and navigation menus using your software?
PostgreSQL PHP Generator allows to provide the created application with your own style by setting the header and the footer for all webpages. Moreover, you can specify the look of each created webpage including the location and the type of each control. The corresponding article describes the basic principles of the appearance adjustment.
Is it possible to edit php code generated by PostgreSQL PHP Generator?
Of course you can modify the generated code but, unfortunately, we have no possibility to provide any support on this.
I installed PostgreSQL PHP Generator and generated a first script, but it produces just a blank page.

Add the following lines into the generated .php file (immediatelly after <?php):

Listing 1.
error_reporting(E_ALL ^ E_NOTICE);
ini_set('display_errors', 'On');

Then run your script again to see a more useful error message.

Is it possible to execute a custom SQL query from an event handler?
Yes, it is possible for server side events (PHP code). Currently you can use the following calls:

To execute a query that does not return results:

Listing 2.
$this->GetConnection()->ExecSQL('INSERT INTO ...');

To execute a query that returns a single value:

Listing 3.
$one = $this->GetConnection()->ExecScalarSQL('SELECT 1');

To execute a query that returns a result set:

Listing 4.
$values = array();
$this->GetConnection()->ExecQueryToArray('SELECT 1 as a UNION SELECT 2 as a', $values);
// $values[0]['a'] == 1;
// $values[1]['a'] == 2;
After uploading of a generated project on my webserver I came up with this kind of error: Parse error: syntax error, unexpected T_OBJECT_OPERATOR in my_page.php on line XX.
The code produced by PHP Generator requires PHP 5. Please make sure that you have installed the correct PHP version on your webserver.
When I try to access a generated PHP script file via my browser, I get the following error message: Warning: include(templates_c\%%56^567^567072C6%%page.tpl.php) [function.include]: failed to open stream: No such file or directory in \libs\smartylibs\Smarty.class.php on line 1152.

Make sure that both templates_c folder and PHP temporary folder (session.save_path directive in php.ini) are writable by the web server user.

To determine which user account is used by Internet Information Services (IIS), follow these steps:

  1. In the Windows Start Menu choose "Run:", type "inetmgr" and click "OK";
  2. Expand the list of web sites under the "Web Sites" node in the tree view, right-click on a web site that is being used and select "Properties";
  3. Click the "Directory Security" tab;
  4. Take note of a "User name:" field in the "Authentication Methods" dialog.

Does your software support lookup options?

Yes, it does. Moreover, lookup menus are generated automatically if your database contains the appropriate foreign key constraints.

Is it possible to handle many-to-many relationships with PostgreSQL PHP Generator?
Yes. Details are covered in the corresponding article.
What environment variables can I use in events (templates)?
To obtain a complete list of supported variables, uncomment the define('SHOW_VARIABLES', 1); line in the generated settings.php file.
How can I determine the total number of records in the table/view/query using a PHP script created with your product?

Use the mouse hint for the page numbering area:

Record number

Can I incorporate features provided by a third-party library in the script created by PostgreSQL PHP Generator?
Yes, PHP Generator allows you to activate third-party components. Find out details in the corresponding article.
How can I supply pages created by PostgreSQL PHP Generator with look and feel of an existing website?
Follow the link to get the step-by-step scenario of the adjusting of webpages appearance.
Is there a way to add a new action link or button to link to a custom php page?

The current version of MS SQL PHP Generator doesn't support such feature directly, but there is a simple workaround: you can replace the original content of an existing data column with the required link or button using the OnCustomRenderColumn event. For example, to display the "Do something" link referencing to the dosomething.php script file instead of the original data stored in the 'data_field' column, specify the event body as follows:

Listing 5.
if ($fieldName == 'data_field')
   $customText = '<a href="dosomething.php?id=' .$rowData['id'] .'">Do something</a>';
   $handled = true;

In case your table has no column to replace, create a custom query based on this table with an additional stub column.

Probably more convenient support for command buttons will be implemented within one of the next releases.

How to add a new link to the application menu?
To add a new link to the app menu, process as described in this article.
Is it possible to use variables within the lookup filter condition?
Yes. The correct syntax is as follows: owner_id = %CURRENT_USER_ID%.
I got the following error message: DateTime::__construct() [datetime.--construct]: Failed to parse time string at position 6: Unexpected character.
You have to specify the correct time zone in the php.ini file as described in the PHP manual.
I want to send an email notification after a user inserts or updates a record.
Export to PDF does not work for me as I got the following error message: Fatal error: Allowed memory size of X bytes exhausted (tried to allocate Y bytes) in path_to_file\pdf_renderer.php on line Z.
I have a table with a column storing values computed from an expression that use other columns in the same table. How can I use OnbeforeInsertRecord and OnBeforeUpdateRecord events to add the values automatically?
Suppose, you have a table with the 'totalcost' column which values are calculated using the 'unit_cost' and 'quantity' column values. To fill the column automatically, use the following code at the OnBeforeInsertRecord and OnBeforeUpdateRecord events:

Listing 6.
$rowData['totalcost'] = $rowData['unit_cost'] * $rowData['quantity'];

What is the correct syntax for items containing spaces in Combobox and Radio Group editors?
It is as follows: "stored value 1=display value 1","stored value 2=display value 2". For example, 1=Small,2=Large,"3=Extra large".
Is it possible to display NULL values as empty strings?
What PostgreSQL server version is supported by your software?
PostgreSQL PHP Generator can be used with all the PostgreSQL server versions starting from 7.3.
How can I find out the date of my current product version release?
Product versions are formalized according to the date of release. For more information, please refer to the appropriate news article.
What is about data security during the server connections with your product?
With connection to intermediate SSH server (when all PostgreSQL commands are forwarded through the secure tunnel) support implemented, PostgreSQL PHP Generator is an attractive variant for those who consider security seriously.
I want to connect to the server via SSH tunnel and I have a public-private key pair that works fine with PuTTY. However when I test the connection, I get an error message "Key is broken".

PuTTY uses its own format to store private keys while our products support private keys stored either in OpenSSH or formats. To convert a private key from PuTTY's format to one of the formats acceptable by our software, use the PuTTYgen utility that can be freely downloaded from the PuTTY website.