new release features

docs/Logic-Use.md

@@ -212,6 +212,18 @@ Observe the `server_default` property.  This value is used by LogicBank, as foll
 
  
 
+#### Aggregates defaulted to 0
+
+Aggregate derivations (sums and counts) are defaulted to 0.
+
+ 
+
+#### All Defaults
+
+You can set the environment variable `ALL_DEFAULTS` to force numeric values to 0, and string values to the null string.  This has no effect on dates.
+
+ 
+
 ## Updating and Deleting
 
 These require you first obtain the row, either through a model class accessor (e.g., retrieve a parent row), or a SQLAlchemy call.  In any case, alter the row as required, and issue `logic_row.update()' (or delete).  As for insert, this triggers logic execution.

docs/WebGenAI-CLI.md

@@ -197,11 +197,24 @@ The logic is non-trivial:
 
  
 
+#### Conditional Derivations
+
+You can make derivations conditional, for example:
+
+```html title='conditional logic'
+Provide a 10% discount when buying more than 10 carbon neutral products
+
+The Item carbon neutral is copied from the Product carbon neutral
+```
+You can find this example in the Manager Readme; see **2. New Database** > **You can iterate the logic and data model**.
+
+ 
+
 #### Cardinality Patterns
 
 Logic GenAI training has enabled the following:
 
-```
+```html title='Cardinality Patterns'
 Products have Notices, with severity 0-5.
 
 Raise and error if product is orderable == True and there are any severity 5 Notices, or more than 3 Notices.

docs/WebGenAI.md

@@ -31,7 +31,7 @@ Description: Instantly Create and Run Database Projects - GenAI, Flask, APIs, SQ
 
  
 
-> Web/GenAI is based on API Logic Server - [docs here.](Doc-Home.md){:target="_blank" rel="noopener"}
+> Web/GenAI is based on API Logic Server - [docs home here.](Doc-Home.md){:target="_blank" rel="noopener"}.  API Logic Server provides the CLI functions used by WebGenAI - for more on the GenAI CLI, [click here](WebGenAI-CLI.md){:target="_blank" rel="noopener"}.
 
 *Click* the image below to watch a 2 minute video:
 
@@ -155,9 +155,10 @@ Use LogicBank to enforce the Check Credit:
 
 You can verify this by altering a sample order/item with a very high quantity, and verifying the credit limit is checked.  (Note this is not trivial - 3 table transaction.)
 
-> Note: at the time of this writing, the sample data sometimes does not totally reflect the derivation rules.  This is under investigation.  You can sometimes resolve this using iterations, eg, `please initialize the customer balance properly`.
+For more, see 
 
-For more, see the [logic editor](WebGenAI-logic-editor.md){:target="_blank" rel="noopener"}.
+* the [logic editor](WebGenAI-logic-editor.md){:target="_blank" rel="noopener"}
+* [natural languge logic](WebGenAI-CLI.md#natural-language-logic){:target="_blank" rel="noopener"}