Choose your database:
AnySQL
MySQL
MS SQL Server
PostgreSQL
SQLite
Firebird
Oracle
SQL Anywhere
DB2
MaxDB

Subscribe to our news:
Partners
Testimonials
Olivier Auverlot: "At my work (a universitary computer research laboratory), I'm alone to create all applications and databases. I don't know how I could do all the work without it. It's really a very productive software. I can focus on the database schemas and create quickly the user applications with a minimal amount of code to maintain".
Simon Greener: "A lot of work went in to designing our application database. PHP Generator allowed us to build a fully functional, professional looking, and functionally powerful web application from that database. It has freed us from worrying about low level code, enabling us to focus on the business requirements of the customer. The support provided is excellent with staff quickly producing answers to questions ranging from newbie to simple or complex. I highly recommend the product".

More

Add your opinion

Customers
Download Buy

PostgreSQL PHP Generator online Help

Prev Return to chapter overview Next

Using Variables

PostgreSQL PHP Generator supports:

•some environment variables (such as CURRENT_USER_ID, CURRENT_USER_NAME, UNIQUE_ID) in both page and application level server-side events.
•custom environment variables to be used in any server-side event of the concrete page (specified within the OnAddEnvironmentVariables event handler) and in any server-side event of any application page (specified within the global OnAddEnvironmentVariables event handler). Such variables can also be used in lookup filter criteria, on data filtering, and as default values.

 

Retrieving the list of available variables

To obtain a complete list of supported variables, turn ON the "Show environment variables" option in the Project Options dialog, re-generate the code and then open any of produced web pages in the browser.

 

 

Accessing variable value

To access the value of a variable, use the GetEnvVar method of the Page class.

 

Example 1

The following example demonstrates how to use variables within the OnBeforeInsertRecord event handler.

 

$rowData['ip_address'] = $page->GetEnvVar('REMOTE_ADDR');

$userName = $page->GetEnvVar('CURRENT_USER_NAME');

if ($userName != 'admin')

    $rowData['changed_by'] = $userName;

 

Within server-side page-level events it is also possible to use $this instead of $page.

 

Example 2

The following code used in the OnAddEnvironmentVariables event handler defines a new variable, which can be used in lookup filter criteria, on data filtering, as a default value, and also in any server-side event.

 



Prev Return to chapter overview Next