#26797 Transaction with user input: invisible properties of the form model cannot be assigned values (initialized)

enhancement

critical

#25645

OpenAPI server

#26207

REST calls via TL script to external APIs according to OpenAPI specification

major

#27196

DeepL: Use glossaries for translations

#27214

TL-Script unversioned object comparison

#27215

Historical to-n references

#27234

Include ChartJS and OpenAPI in BPE Standard Configuration

minor

#26835

Perform instanceof checks unversioned

#26935

Make Close dialog configurable by Create

#27225

Bulk Dependency Update

#27236

Model definition for revision

#27251

TLModelUtil: Replace declared ConfigurationException with TopLogicException

defect

critical

#27205

TL-Sync transmitter stops on association update

major

#27139

Button menu in button bar does not open

#27207

Search suggestions of SelectFields and popups of the breadcrumb are placed incorrectly

#27228

Missing display of Flex data for historical objects

#27241

OpenAPI: Error although query successful

minor

#26797

Transaction with user input: invisible properties of the form model cannot be assigned values (initialized)

#26921

ClassCastException when evaluating security rules that refer to (non-structuredElement) singletons of a module.

#27096

Tree does not scroll the selected node into the viewport on (external) selection

#27167

Normalizing JSPs leads to wrong indentation for if-else blocks

#27203

Application tests with chart.js report on home page fail

#27204

PersistentEnumeration.tValue(...) leads to ClassCastException

#27218

Grid tables: Calculated column: Single-Value SelectField requires list value.

#27227

User time zone and thus SubSession time zone can be zero

#27231

Incremental modification of a set-valued attribute not possible.

#27239

Typo in database configurations at "password template

#27240

OpenAPI: Missing content type for JSON request content

#27249

TLScript suggestions are always displayed in the same language

#27250

Missing Maven profile "ide" in Eclipse

defect

minor

#26797

Transaction with user input: invisible properties of the form model cannot be assigned values (initialized)

AppEditors InAppDevelopment

Background

In a "transaction with user input," the user input (for the form definition—specifying which values the user should be able to enter) is described as a separate model type. During "initialization," this model type is populated with values from the target model (fields are pre-filled).

Now, during “Initialization,” you may want to store additional information in this model type for the form definition—information that should not be displayed to the user or entered by the user: For example, during “Initialization,” certain properties of the target model should be stored in the form object so that they can be used in a constraint on the form model to “validate” subsequent user input or to annotate “suggested values” for it.

Problem

Such attributes, which are not displayed in the form for user input (either because they are not part of the form or are declared as “hidden”), cannot be assigned values in the “initialization” expression:

Caused by: java.lang.IllegalStateException: Attribute 'tl.contract.offer:OfferStateChangeForm#permittedValues' cannot be modified.
    at com.top_logic.element.meta.form.overlay.FormObjectOverlay.tUpdate(FormObjectOverlay.java:449)
	at com.top_logic.model.search.expr.DynamicSet.eval(DynamicSet.java:92)
    at com.top_logic.model.search.expr.GenericMethod.internalEval(GenericMethod.java:107)
	at com.top_logic.model.search.expr.SearchExpression.evalWith(SearchExpression.java:95)
    at com.top_logic.model.search.expr.SearchExpression.eval(SearchExpression.java:54)
	at com.top_logic.model.search.expr.Block.internalEval(Block.java:43)
    at com.top_logic.model.search.expr.SearchExpression.evalWith(SearchExpression.java:95)
	at com.top_logic.model.search.expr.Lambda.internalEval(Lambda.java:82)
    at com.top_logic.model.search.expr.SearchExpression.evalWith(SearchExpression.java:95)
	at com.top_logic.model.search.expr.Call.internalEval(Call.java:57)
    at com.top_logic.model.search.expr.SearchExpression.evalWith(SearchExpression.java:95)
	at com.top_logic.model.search.expr.Lambda.internalEval(Lambda.java:82)
    at com.top_logic.model.search.expr.SearchExpression.evalWith(SearchExpression.java:95)
	at com.top_logic.model.search.expr.Lambda.internalEval(Lambda.java:82)
    at com.top_logic.model.search.expr.SearchExpression.evalWith(SearchExpression.java:95)
	at com.top_logic.model.search.expr.query.DirectQueryExecutor.executeWith(DirectQueryExecutor.java:62)
    at com.top_logic.model.search.expr.query.QueryExecutor.execute(QueryExecutor.java:227)
	at com.top_logic.model.search.providers.MonomorphicCreateFormBuilderByExpression.fillFormContext(MonomorphicCreateFormBuilderByExpression.java:99)

After initial consultation, this was classified as a bug.

Test

/com.top_logic.demo/src/test/java/test/com/top_logic/demo/scripted/layout/transaction/TestCustomTransaction.script.xml