[CAP] Using a Tree in SAP Freestyle app

The following Links helped me implementing the tree functionality:

https://sapui5.hana.ondemand.com/#/entity/sap.m.Tree/sample/sap.m.sample.TreeOData

https://answers.sap.com/questions/13192367/sap-cds-how-to-add-hierarchy-annotations-saphierar.html

Define the data model in data-model.cds

entity Node {
    key NodeID         : Integer;
        HierarchyLevel : Integer;
        ParentNodeID   : Integer;
        Description    : String;
        drillState     : String;
}

Create testdata in my.test-Node.csv

NodeID;HierarchyLevel;ParentNodeID;drillState;Description  
1;0;null;"expanded";"1"
2;0;null;"expanded";"2"
3;0;null;"expanded";"3"
4;1;1;"leaf";"1.1"
5;1;1;"expanded";"1.2"
6;2;5;"leaf";"1.2.1"
7;2;5;"leaf";"1.2.2"

and deploy the testdata to your local sql db

cds deploy --to sqlite:db/test.db

Service Definition in test-service.cds

using my.test as db from '../db/data-model';

service testService {
     entity Nodes as projection on db.Node;
}

add the Tree controll to your Fiori UI view Tree.view.xml

		<Tree
		    id="Tree"
		    items="{path: '/Nodes',
				    parameters : {
		                countMode: 'Inline',
                        numberOfExpandedLevels: 3, 
                        treeAnnotationProperties: { hierarchyLevelFor : 'HierarchyLevel', 
                                                    hierarchyNodeFor : 'NodeID', 
                                                    hierarchyParentNodeFor : 'ParentNodeID', 
                                                    hierarchyDrillStateFor : 'drillState' 
                                                    }
		            }
            }">
			<StandardTreeItem title="{Description}"/>
		</Tree>

The output should be similar to this:

[SAP] Namensraum

Namensraum anlegen

Tcode: SE03

Editierbarkeit von Objekten eines Namensraumes zulassen

Tcode: SE03

Ggf. muss in der SE80 noch der Modifikationsassistant ausgeschaltet werden.

SE80 -> Bearbeitten -> Modifikationsoperationen -> Assistant ausschalten

[CAP] Add SQLite DB for development

# install SQLite
npm i sqlite3 -D 

# create db, save configuration in package.json, stores mock data into db
cds deploy --to sqlite:db/my-app.db

# get and overview of your tables with .tables
sqlite3 db/my-app.db .tables

# open and view newly created db
sqlite3 db/my-app.db -cmd .dump

# and select single field with
SELECT field FROM mytable WHERE mykeyfield= "00505601194D1EE9B7BFC518B85";

# update a field with
UPDATE mytable SET field = "test" WHERE mykeyfield= "00505601194D1EE9B7BFC518B85";

[ABAP] Provide values of a domain in a dropdown list on selection screen

  
  PARAMETER p_test TYPE c OBLIGATORY AS LISTBOX VISIBLE LENGTH 32 DEFAULT 1.

  INITIALIZATION.

  cl_reca_ddic_doma=>get_values( EXPORTING id_name   = 'Z_MYDOMAIN'
                                 IMPORTING et_values = DATA(lt_rsdomaval) ).

  CALL FUNCTION 'VRM_SET_VALUES'
    EXPORTING
      id     = 'P_TEST'
      values = VALUE vrm_values( FOR dvalue IN lt_rsdomaval ( key  = dvalue-domvalue_l 
                                                              text = dvalue-ddtext ) ).

[ABAP] Find fullname for sy-uname

Via Infotype

    TRY.
        DATA(lo_employee_api) = cl_hcmfab_employee_api=>get_instance( ).
        DATA(lv_pernr)        = lo_employee_api->get_employeenumber_from_user( sy-uname ).
        DATA(lv_ename)        = lo_employee_api->get_name( lv_pernr ).
      CATCH cx_hcmfab_common.
    ENDTRY.

or via SU01

    TRY.
        DATA(lv_ename) = NEW /xiting/cl_su01_read( sy-uname )->get_fullname( ).
      CATCH /xiting/cx_user.
    ENDTRY.

[ABAP] Read personnel area with text

  DATA p0001 TYPE p0001.
  cl_hcmfab_utilities=>read_infotype_record( EXPORTING iv_pernr = pernr
                                                       iv_infty = '0001'
                                             IMPORTING es_pnnnn = p0001 ).
  DATA(personnel_area_id)   = p0001-werks.
  DATA(personnel_area_text) = cl_hr_t500p=>read( p0001-werks )-name1.

Or using the class CL_HCMFAB_EMPLOYEE_API.

  DATA(lv_employee_details) = cl_hcmfab_employee_api=>get_instance( )->get_employee_details( iv_pernr          = pernr
                                                                                             iv_application_id = if_hcmfab_constants=>gc_application_id-mypersonaldata ).
  DATA(personnel_area_id)   = lv_employee_details-personnel_area_id.
  DATA(personnel_area_text) = lv_employee_details-personnel_area_text.

[ABAP] Set Select-Option to invisble via Radiobuttons and MODIF ID

REPORT ztest.

TABLES pa0002.

*-----------------------------------------------------------------------
* Selection screen
*-----------------------------------------------------------------------
PARAMETERS: p_radio1               RADIOBUTTON GROUP rad1 DEFAULT 'X' USER-COMMAND rad. "set visible
PARAMETERS: p_radio2               RADIOBUTTON GROUP rad1.                              "set invisible

SELECT-OPTIONS : s_pernr           FOR pa0002-pernr MODIF ID 100.

*----------------------------------------------------------------------
* AT SELECTION-SCREEN
*----------------------------------------------------------------------
AT SELECTION-SCREEN OUTPUT. " PBO

  LOOP AT SCREEN.
    CASE screen-group1.
      WHEN '100'.
        screen-invisible = COND #( WHEN p_radio1 = abap_true THEN 0 ELSE 1 ).
        MODIFY SCREEN.
    ENDCASE.
  ENDLOOP.

[ABAP] Parse SF Entity Key from URI

  METHOD get_entitykey_from_uri.

    " Pattern: Entity\((.*)\), 
    DATA(pattern) = iv_entity && `\((.*)\)`.

    TRY.
        DATA(matcher) = cl_abap_matcher=>create( pattern     = pattern
                                                 text        = iv_uri
                                                 ignore_case = abap_true ).
      CATCH cx_sy_invalid_regex.
    ENDTRY.

    TRY.
        DATA(lt_matches) = matcher->find_all( ).
        ASSIGN lt_matches[ 1 ] TO FIELD-SYMBOL(<s>).

        rv_entity_key = substring( val = iv_uri off = <s>-offset len = <s>-length ). 

      CATCH cx_sy_no_current_match.
    ENDTRY.

  ENDMETHOD.