Creating standard guided rules
In the previous lab 4 you created a guided rule using
your DSL. Now let's create a guided rule without using a DSL. To add a guided
rule, first have to return to Asset view. Click on
retail-webshop
project in bread crumb menu at top:
Total Shopping Cart - Create guided rule
Click on
ADD ASSET -> GUIDED RULE to open pop-up, create
'Total Shopping Cart' rule, and click on +OK to create rule:
Total Shopping Cart - The editor
The guided rule editor is now open before you, note the green `+` signs on the
right, these open lists of options:
Let's check the data objects first, switch tabs by clicking on
Let's check the data objects first, switch tabs by clicking on
Data Objects tab
Total Shopping Cart - Rule data objects
This view is of the available date model objects for use in this guided rule. Ensure
each data object (4x) is added as shown with
To import data objects outside the same package as this rule, you can use
+NEW ITEM:
To import data objects outside the same package as this rule, you can use
+New Item to import (not needed for lab)
Total Shopping Cart - The WHEN section
Return to
Model tab and start designing guided rule. Top green `+` is
for the WHEN (condition) section of our rule. Click on this top green `+` to open
pop-up:
Total Shopping Cart - Add a ShoppingCart
The condition (WHEN) need is:
Select
There is a 'ShoppingCart'
Select
ShoppingCart from menu and click on +OK:
Total Shopping Cart - Assign ShoppingCart variable
The condition has now been added to the WHEN section:
To assign variable name
To assign variable name
'$sc' click on ShoppingCart for pop-up and
fill in Variable name as shown and click on Set button:
Saving your work
- Be sure to SAVE your work by clicking button top right
- Optionally add a comment and click SAVE WITH COMMENTS drop-down in menu
- This completes the
WHENsection of your rule
Total Shopping Cart - First THEN action
The action (THEN) is a two part action. Click on bottom green '+' on right for pop-up,
We want to modify value of ShoppingCart ($sc):
- in pop-up, select
Modify $sc...and click+OKto add
Total Shopping Cart - Add field cartTotal
Now add a field
cartTotal in THEN section by clicking on pencil icon
and selecting field cartTotal in pop-up to add:
Total Shopping Cart - Add value to cartTotal
Now assign value
0.0 to cartTotal by clicking on pencil
icon next to cartTotal, select Literal value:
Total Shopping Cart - Second THEN action
Can you complete the second action (THEN) yourself? Modify value of
ShoppingCart field cartItemPromoSavings to
the following formula (hint: use formula instead of literal value):($sc.cartItemPromoSavings == 0.0) ? 0.0 : $sc.cartItemPromoSavings * -1
Total Shopping Cart - Set options
Expand the 'show options' and add attributes, use green '+' on right:
check NO-LOOP boxRULEFLOW-GROUP: total-rules
Saving your work
- Be sure to SAVE your work by clicking button top right
- Optionally add a comment and click SAVE WITH COMMENTS drop-down in menu
- This completes the
Total Shopping Cartrule
Returning to Asset view
To add our first guided rule, first we have to return to Asset view by clicking on
retail-webshop project in bread crumb menu at top. (Returning to
Asset view can be done at any time)
Apply Cart Item Promotions - Create guided rule
Click on
ADD ASSET -> GUIDED RULE to open pop-up, create
'Apply Cart Item Promotions' rule, and click on +OK to create rule:
Apply Cart Item Promotions - Rule overview
The condition (WHEN) is two fold:
The action (THEN) will modify two ShoppingCart fields:
Switch tabs by clicking on
- Part I is about a ShoppingCartItem
- Part II is about a PromoEvent that monitors an event stream
'Promo Stream'
The action (THEN) will modify two ShoppingCart fields:
- promoSavings field
- price field
Switch tabs by clicking on
Data Objects tab
Apply Cart Item Promotions - Rule data objects
Ensure that data model (4x) added in
Return to the
Data Objects tab:
Return to the
Model tab to start on the guided rule
Apply Cart Item Promotions - WHEN part 1
The condition (WHEN) Part I:
'There is a ShoppingCartItem'- Assign a variable name to this ShoppingCart
'$sci' - Add a restriction on field
'itemID' - Assign by clicking, variable name to itemID:
'$itemID'
Apply Cart Item Promotions - WHEN part 2
The condition (WHEN) Part II:
- Use top green
+to add second condition - Start with from Entry Point and fill in:
'Promo Stream'
Apply Cart Item Promotions - WHEN part 2 (continued)
The condition (WHEN) Part II (continued):
- Within condition click on red
'(click to add patterns...)' - Add
PromoEvent, results in'There is a PromoEvent'
Apply Cart Item Promotions - Multiple field constraint
Next, clicking on `There is a PromoEvent` for a pop-up, select from drop down menu
for multiple field constraint:
All of (And)- Results in
'with all of the following'
Apply Cart Item Promotions - Field itemId restriction
Next, click on
'all of the following' line to add:- Add a restriction on a field, select
itemId - Now use drop down menu to set it
'equal to'
Apply Cart Item Promotions - Setting bound variable
Next, click on the pencil icon for pop-up:
- Click on the
Advanced options: Bound variable - Select
$itemIDfrom the inserted list
Apply Cart Item Promotions - Field percentOff restriction
To wrap up the condition (WHEN), click on
'all of the following' line to add:- Add a restriction on a field, select
percentOff - Click on
percentOffand bind field to variable:'$pctOff' - percentageOff is over sliding window:
'none'
Apply Cart Item Promotions - Verify WHEN section
The conditions (WHEN) are finished, verify that yours looks like this:
Saving your work
- Be sure to SAVE your work by clicking button top right
- Optionally add a comment and click SAVE WITH COMMENTS drop-down in menu
- This completes the
Apply Cart Item PromotionsWHEN section
Apply Cart Item Promotions - Complete the THEN section
The actions (THEN) part of our rule is next, add the following using bottom green `+`:
- Add:
'Modify value of ShoppingCartItem ($sci)' - Use pencil icon adding:
'promoSavings is set to 0.0' - Add second:
'Modify value of ShoppingCartItem ($sci)' - Use pencil icon adding:
'price is set to 0.0'
Apply Cart Item Promotions - Set options
Expand the 'show options' and add:
check NO-LOOP boxRULEFLOW-GROUP: promo-cart-rules
Apply Cart Item Promotions - Verify rule
This completes the guided rule, should look like this:
Saving your work
- Be sure to SAVE your work by clicking button top right
- Optionally add a comment and click SAVE WITH COMMENTS drop-down in menu
- This completes the
Apply Cart Item Promotionsrule
Returning to Asset view
Finally, we return to Asset view by clicking on
retail-webshop project
in bread crumb menu at top. (Returning to Asset view can be done at any time):
Lab completed - Results
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