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Business logic: Difference between revisions
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== Rules == | == Rules == | ||
Rules are scripts that run directly in the mobile application. They offer a way for setting up business logic using [[Woodford]]. Rules can be placed on multiple [[user interface components]]: | |||
* [[Form]] | |||
* [[View]] | |||
* [[Route plan]] | |||
* [[Calendar]] | |||
* [[Map]] | |||
== Scripting language == | |||
[[File:Sample rule.png|thumb|right|300px|Sample rule]] | |||
Rules are formed in a simple scripting language. Essentially, you combine '''conditions''' and '''steps'''. | |||
{| class="wikitable" style="display: inline-table; vertical-align:top;" | |||
! Conditions | |||
|- | |||
| | |||
* If... | |||
* Then... | |||
* Else... | |||
|} | |||
{| class="wikitable" style="display: inline-table; vertical-align:top;" | |||
! Steps | |||
|- | |||
| | |||
* Hide fields | |||
* Set read-only | |||
* Assignment | |||
* Set GPS position | |||
* Say text | |||
* Set a variable | |||
* Load a fetch | |||
|} | |||
You don't write scripts, you build them and using buttons and selecting values from a drop-down menu. | |||
== Objects in rules == | |||
Rules allow you to evaluate and modify parameters of various objects: | |||
* Entity - edit/create/delete records | |||
* Form - modify what's displayed on a form | |||
* Tabs - modify all the tabs of a form | |||
* Variables / shared variables - Save a value as a variable to use later in a rule, display, or use in a different rule | |||
* Configuration - currently logged-in user, URL, online/offline status, etc. | |||
* Relationship - determine whether a form is opened via associated view | |||
* Specialties | |||
== Form rules == | |||
Form rules describe sequences of steps that are executed on form-related events. They allow you to for example to customize edit form user interface (hide or disable fields, assign values, etc.). | |||
; On Load: These rules are checked when you open a form. You can use these rules for example to apply custom format to certain records. | |||
; On Change: These rules are checked when you open a form or modify any field. Example: simple form validation. | |||
; On Save: These rules are checked when you save a record. For example, saving a record can automatically also update a field in a parent record. | |||
Rules also control the behavior of commands: when should a command be displayed and what should it do. | |||
* '''On Can Execute''' rule defines when the command will be available for the user. | |||
* '''On Execute''' rule defines the actions that the command performs. | |||
[[Category:Core concepts]] | [[Category:Core concepts]] | ||