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Annotation of Examples/EnterpriseObjects/MasteringDetails/EmpController.m, revision 1.1

1.1     ! root        1: 
        !             2: #import "EmpController.h"
        !             3: #import <eointerface/eointerface.h>
        !             4: #import "ValueForKey.h"
        !             5: #import "SelectionInsertionAssociation.h"
        !             6: 
        !             7: @implementation EmpController
        !             8: 
        !             9: - appDidInit:sender
        !            10: {
        !            11:     // add custom association that inserts and deletes objects in the
        !            12:     // empProjectsController based on the selection in the allProjectsController
        !            13:     [empProjectsController addAssociation:[[SelectionInsertionAssociation alloc] initWithController:empProjectsController key:nil destination:allProjectsController]];
        !            14: 
        !            15:     // add custom association that inserts and deletes objects in the
        !            16:     // empDeptsController based on the selection in the allDeptsController
        !            17:     [empDeptsController addAssociation:[[SelectionInsertionAssociation alloc] initWithController:empDeptsController key:nil destination:allDeptsController]];
        !            18: 
        !            19:     // Fetch the list of all projects and all departments for our pick lists.
        !            20:     // A real app would probably cache these list so it wouldn't have to
        !            21:     // requery the database each time a new window is opened.
        !            22:     [allProjectsController fetch:nil];
        !            23:     [allDeptsController fetch:nil];
        !            24: 
        !            25:     // Set a controller in memory sort for first name and last name
        !            26:     // and fetch all of the employees
        !            27:     [empController setSortOrdering:[NSArray arrayWithObjects:
        !            28:         [EOKeySortOrdering keyOrderingWithKey:@"last_name" ordering:NSOrderedAscending],
        !            29:         [EOKeySortOrdering keyOrderingWithKey:@"first_name" ordering:NSOrderedAscending], nil]];
        !            30:     [empController fetch:nil];
        !            31: 
        !            32:     return self;
        !            33: }
        !            34: 
        !            35: - insert:sender
        !            36: {
        !            37:     // Add a new employee
        !            38:     // In addition to inserting the employee itself, we need to insert
        !            39:     // in any detail controller that represent mandatory to-one relationships.
        !            40:     // Possible Enhansement: make the Savvy controller propagate inserts to
        !            41:     // detail controllers automatically.
        !            42:     [empController insert:self];
        !            43:     [quoteController insert:self];
        !            44:     [photoController insert:self];
        !            45:     // default the department for the new employee to the first department in the list 
        !            46:     [empDeptsController insertObject:[[allDeptsController allObjects] objectAtIndex:0] atIndex:0];
        !            47:     return self;
        !            48: }
        !            49: 
        !            50: - (BOOL)controllerWillDiscardOperations:(EOController *)controller
        !            51: {
        !            52:     // Application policy: if they fetch or change selection,
        !            53:     // automatically save the current employee data.
        !            54:     return [self save:nil] ? YES : NO;
        !            55: }
        !            56: 
        !            57: 
        !            58: - save:sender
        !            59: {
        !            60:     [empController saveToDataSource];
        !            61: 
        !            62:     // Updates to controllers (like our department) may have changed property
        !            63:     // values that we display in the master.
        !            64:     // Re-sort in case the save changed the sort attributes
        !            65:     [empController resort];
        !            66: 
        !            67:     return self;
        !            68: }
        !            69: 
        !            70: @end

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