forms
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- Forms are used in Oracle Apps to build application interfaces and allow users to view and interact with data. They contain components like canvases, windows, blocks, items, and triggers. - Blocks organize form data and can be connected to database tables. Items display and collect user input. Triggers contain PL/SQL code that runs on events. - The form development process involves designing the layout, adding components, writing trigger code, and registering/compiling the form to generate an executable that can be deployed.
forms
- 1. Forms 6i By Chandrasekhar Redrouthu
- 2. Topics Covered • Introduction to forms • Components in forms • Forms in Oracle Apps
- 3. Application Development in Forms Two Parts in Forms Development • Forms painting – Designing the layout of the forms • Coding – Coding in Triggers and Lovs
- 4. Major Components of a form • Canvas • Windows • Blocks • Items • PL/SQL blocks
- 5. Canvas • It’s the background on which you place the interface objects. • Items in a block can be placed on different canvas views and can be displayed in different windows. • Different Types of canvas are tab canvas stack canvas and content canvas
- 6. Windows • A form can include any number of windows. • A new form will by default have one window named window1. • A window must be attached to a canvas.
- 7. Block • They are logical containers and have no physical representation in the form • They are very similar to the tables in the database . • Each block may or may not be connected to the database table . • There are 2 types of blocks Control and Database block
- 8. Block – Cont.. • Block connected to database(Table) is called a database block. User can query , update , insert and delete data in the base table because of this direct relationship. • Two blocks can be connected using Master- Detail relation ship.
- 9. Items - Basic building blocks of a form • Types – Text Item: A single- or multi-line text box that supports a variety of data types, format masks, and editing capabilities. – Display Item: A read-only text box whose value must be fetched or assigned programmatically. Operators cannot navigate to a display item or edit the text it contains.
- 10. Cont..– List Item: A List of choices displayed as either a drop-down List, a List box, or a combo box. – Push Button: A rectangle with a text label or an icon graphic inside. – Radio Group: A group of radio buttons, one of which is always selected. – Check Box: A text label with a graphic state indicator that displays the current value as either checked or unchecked. Clicking on a check box toggles it to the opposite state.
- 11. Items – Cont.. • Bean Areas • Chart Items • Image Items • Hierarchical Tree Item • User Area
- 12. Triggers• All the coding for a form is done in a trigger• Triggers are defined/attached at three levels-Form level, Block level,Item level.• Trigger contains one or more PL/SQL statements.• There are triggers defined for all events and actions which can take place in a form• Trigger names correspond to runtime events.• A trigger must be attached to a specific object in the form, either an item, a block, or the form itself
- 13. Triggers Contd.. • Trigger types -- When Triggers -- Pre Triggers -- Post Triggers -- On Triggers -- Key Triggers
- 14. Triggering Sequence When a form is Opened • Pre-Form • Pre-Block • Pre-Record • Pre-Text-Item • When-New-Form-Instance • When-New-Block-Instance • When-New-Record-Instance • When-New-Item-Instance
- 15. Contd..When Form is closed • Post-Text-Item • Post-Record • Post-Block • Post-Form
- 16. Program Units • Procedure • Function • Package Spec • Package Body
- 17. Libraries • Procedures and functions used across the forms • It is a type of module (.PLL) • Attaching libraries • Can be accessed from forms, menus, libraries
- 18. Some other concepts • Alerts • LOV • Record Groups • Parameters
- 19. Tools in Forms Designer • Object Navigator : The Object navigator displays each object you have created and allows you to navigate through the hierarchy • Properties Palette: This allows you to examine and set the properties of each of the objects defined by the user. • Layout Editor: The sizing , positioning , alignment of the user created objects are done through this screen • PL/SQL editor: Used for writing PL/SQL code • Menu editor : Tool to create menus
- 20. Steps in creating a form • Name the form • Connect to the database • Create blocks (Can use Data Block Wizard) • Create the layout( Can use Layout Wizard) • Set the properties • Add code in triggers • Test
- 21. Forms registration • TEMPLATE.fmb should be used for building all forms • Register the Form • Register the Function • Attach the function to a menu • FTP the form to the UNIX box • Compile the form using f60gen command to generate executable (fmx)
- 29. FTP and Compiling the form •FTP the form to the custom_top/forms using any FTP Tool. •Go to UNIX and set environment by typing . qoedv2 at the prompt . •Go to AU_TOP/forms/US •Compile the form using the command •F60gen $CUSTOM_TOP/forms/US/form_name.fmbusername/password
- 30. Other components in Forms Object Libraries • Create, store, maintain, and distribute standard and reusable objects. • Rapidly create applications by dragging and dropping predefined objects to your form.PL/SQL Libraries • These are special type of module in oracle form that serve the purpose of central repository for all the program units of the applications. • Once these PLLs are created they can be accessed from any form or menu module.
- 31. Contd..Menus • This is a form builder design tool which is used to create custom form menus and popup menus Built in packages • Forms Developer and Reports Developer provide several built-in packages that contain many PL/SQL constructs which can be referenced while building applications
- 32. Common Issues • TNS names not found • Cannot attach PL/SQL Library • Errors while compiling the form in UNIX
- 33. Thank You