Kitto.Metadata.ModelImplementation

The default model implementation. Provides TKDefaultModel, which performs record I/O against a database through SQL, plus class helpers that let code build models dynamically (add/delete fields and detail references).

TKModelFieldHelper class

Class helper exposing mutation operations on a model field (used to build models dynamically).

procedure SetFieldSpec(const ADataType: string;

Sets the field's YAML spec string from the individual attributes (data type, size, scale, required, key, referenced model).

procedure SetIsKey(const AValue: Boolean);

Sets or clears the primary-key flag in the field's spec.

procedure AddField(const AField: TKModelField);

Adds AField as a sub-field of this field.

procedure DeleteField(const AField: TKModelField);

Removes and frees the given sub-field of this field.

TKModelDetailReferencesHelper class

Class helper exposing add/delete operations on a model's detail references (used to build models dynamically).

procedure AddDetailReference(const ADetailReference: TKModelDetailReference);

Adds a detail reference to the collection.

procedure DeleteDetailReference(const ADetailReference: TKModelDetailReference);

Removes and frees the given detail reference.

TKDefaultModel class

function LoadRecords(const AStore: TEFTree;

Requires that AStore is a TKViewTableStore and calls InternalLoadRecords.

procedure SaveRecords(const AStore: TEFTree;

Requires that AStore is a TKViewTableStore and calls InternalSaveRecords.

procedure SaveRecord(const ARecord: TEFNode;

Persists the specified record. Calls various protected virtual methods.