The document discusses form builder in Oracle Forms, including creating form modules, data blocks, and different types of items such as text items, buttons, and list items. It also covers topics like triggers, windows, canvases, and how to display forms across multiple windows.
6. Form Builder Module MENUS FORMS LIBRARIES Developer /2000 Components Database ! @
7. Blocks, Items and Canvases Canvas 1 Canvas 2 Items Block A Block B Items ! @
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9. Data Blocks A B C D X Y Z A B C A B C Master Data Block Detail Data Block Table Table 1 2 3 4 5 6 1. Base Table source 3. Trigger Access 5. Multirecord data block 2. Single-record data block 4. Nonbase table source 6. Record !
10. Forms and Data Blocks Block 1 Block 2 Block 4 Block 3 Block 1 Block 1 Block 2 Block 1 Form A Form B Form C Open Form Open Form Multiple Form Modules Single Form Module ! @
77. Items Based on Summary Book id Book name Price No of copies Total 1 2 3 4 200 120 50 25 5 4 9 3 1000 480 450 75 Books Summarised Item Total Price 2,005 Summary Item !
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80. LOVs Book Name Author Name select bookname, authorname from books ; Books Table Books record group Books LOV !
84. LOV Column Mapping Book Name Author Name select bookname, book_id,authorname from books; Books table Books record group Books LOV Book id Book id Tc0001 St0002 Hidden columns Book Name Author Name ! @
128. Query Triggers Fire PRE-QUERY trigger Fetch A Row Into A New record Mark Record As valid Fire POST-QUERY trigger Validate any Record Changes Perform Query Construct SELECT….. Abort query on failure Flush record on failure Query Processing !
146. Navigation Triggers Pre- and Post- When New object Instance Fire during navigation Fire after navigation Does not fire if validation Does fire when validation unit is larger than trigger unit is larger than the object trigger object Allows unrestricted Allow restricted and built-ins unrestricted built-ins Handle failure by Is not affected by failure returning to initial object ! @
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149. Using Pre and Post Triggers Trigger Type Use to Pre-Form Pre-Block Validate - User, Time of day Initialize control blocks - Call another form to display messages Post-Form Perform housekeeping - erase global variables Before exit - Display messages to user Authorize access to the block Post-Block Validate the last record that had input focus Test a condition and prevent the user from leaving Pre-Record Set global variables Post-Record Clear global variables - Set a visual attribute for an item as the user scrolls down through a set of records. Perform cross field validation Pre-Text-Item Post-Text-Item Derive a complex default value. Record the previous value of a text item Calculate or change item values ! @
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151. Navigation in Triggers Built-in routines for Navigation Function GO_FORM Navigates to an open form (in a multiple fprm application) GO_BLOCK Navigates to an indicated block Navigates to an indicated item Navigates to a specific record GO_ITEM GO_RECORD NEXT_BLOCK Navigates to the next enterable block NEXT_ITEM Navigates to the next enterable item NEXT_RECORD Navigates to the first enterable item in the next record NEXT_SET Fetches another set of records from the database and navigates to the first record that the fetch retrieves UP Navigates to the instance of the current item in the previous record DOWN Navigates to the instance of the current item in the next record PREVIOUS_BLOCK Navigates to the previous enterable block PREVIOUS_ITEM Navigates to the previous enterable item PREVIOUS_RECORD Navigates to the previous enterable record SCROLL_UP SCROLL_DOWN Scrolls the block so that the records above the top visible one display Scrolls the block so that the records below the bottom visible one display ! @
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154. The Commit Sequence of Events Validate the form Pre-Commit Validate the block Pre-Delete Delete Row On-Delete Post-Delete 1 2 More records? Contd. !
155. The Commit Sequence of Events Copy value from item Pre-Update Check uniqueness Insert row On- Insert Post-Insert 1 2 More blocks? INSERT UPDATE More records? Pre-Insert Check uniqueness Update row On-Update Post-Update Post-Forms-Commit Commit changes Post-Database-Commit STOP !
179. Property Classes Canvas View Properties Relation Properties Item Properties LOV Properties Block Properties A property class is a named object that contains a list of properties and their settings ! @
180. Property Class Icons Add Property Delete Property Property Class Inherit Property !
186. Copying Objects Bookname Author name Price Bookname Author name Price Ability to make an exact copy of the object !
187. What Is Subclassing? Bookname Author name Price Bookname Author name Price Ability to make an exact copy of the object Bookname Author name Price Category Book-id Ability to add properties to an object !
188. Subclassing Bookname Author name Price Bookname Author name Price Ability to make exact copy of object Bookname Author name Price Category Book-id Ability to add to object Bookname Author name Price Ability to alter properties !
189. Inheriting Changes Bookname Author name Price Bookname Author name Price Bookname Author name Price Category Book-id Ability to inherit changes Bookname Author name Price Making changes to parent Ability to inherit changes Ability to inherit changes !
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