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import java.util.Map;
import org.joget.apps.app.service.AppUtil;
import org.joget.apps.form.model.Element;
import org.joget.apps.form.model.FormData;
import org.joget.apps.form.model.FormRow;
import org.joget.apps.form.model.FormRowSet;
import org.joget.apps.form.service.FormUtil;
import org.joget.commons.util.TimeZoneUtil;

public FormRowSet load(Element element, String usernameprimaryKey, FormData formData) { 
    FormRowSet rows = new FormRowSet();
    
    //Get timezones using timezone util
    for(Map.Entry entry : TimeZoneUtil.getList().entrySet()){
        FormRow option = new FormRow();
        option.setProperty(FormUtil.PROPERTY_VALUE, (String) entry.getKey());
        option.setProperty(FormUtil.PROPERTY_LABEL, (String) entry.getValue());
        rows.add(option);
    }
    
    return rows;
}

//call load method with injected variable
return load(element, primaryKey, formData);

import org.joget.apps.form.model.Element;
import org.joget.apps.form.model.FormData;
import org.joget.apps.form.model.FormRow;
import org.joget.apps.form.model.FormRowSet;
import org.joget.apps.form.service.FormUtil;
import org.joget.plugin.base.PluginManager;
import org.joget.apps.form.model.FormLoadBinder;

public FormRowSet load(Element element, String primaryKey, FormData formData) {
    String defaultFormDefId = "default_grid_entry"; //change this to the form id used to store default grid data
    String formDefId = "grid_entry";  //change this to the form id used to store grid data
    String foreignKey = "fk"; //change this to the foreign key 
    
    FormRowSet f = new FormRowSet();
    f.setMultiRow(true);

    // Reuse Multi Row Binder to load data
    PluginManager pluginManager = (PluginManager) FormUtil.getApplicationContext().getBean("pluginManager");
    FormLoadBinder binder = (FormLoadBinder) pluginManager.getPlugin("org.joget.plugin.enterprise.MultirowFormBinder");
    
    //Load from the grid table
    binder.setProperty("formDefId", formDefId);
    binder.setProperty("foreignKey", foreignKey);
    f = binder.load(element, primaryKey, formData);
    
    //if no grid data is retrieved, get from default table
    if (f == null || f.isEmpty()) {
        binder.setProperty("formDefId", defaultFormDefId);
        
        //set the foreign key value to empty
        f = binder.load(element, "", formData);
    }
    return f;
}

//call load method with injected variable
return load(element, primaryKey, formData);