adding custom image column to webtop depending upon a file type

Mayur_shivs

Hello

I have a requirement wherein i want to add custom image column to webtop 6.7 depending upon specific attribute ,

Currentely i am only able to create custom xml file in custom\config folder

<?xml version="1.0" encoding="UTF-8"?>

<scope>

<desc>

Adding custom image to object list.

</desc>

<attribute>protected</attribute>

<label><nlsid>CONNECTION_PROTECTION</nlsid></label>

<visible>false</visible>

</column>

</columns>

</component>

</scope>

</config>

so where can i place my image file, from where to invoke the custom class . If any one has worked on it please specify the correct way

Regards

Find more posts tagged with

Comments

PanfilovAB

If you want to show image instead of text you should write custom tag.

Mayur_shivs

where should i create a tag for this

PanfilovAB

in corresponding jsp smth. like:


<dmf:celltemplate field="protected">
    <customimagetag datafield="protected"/>
</dmf:celltemplate>

Mayur_shivs

Hello

I want to show aspect value attached with documentum objects in webtop with image , currentely i have added this bit in

doclist_body.jsp

<dmf:celllist>

<dmf:celltemplate field='aspect_value'>

<dmf:datagridRowTd nowrap="true" scope='row' cssclass="docbaseIconOverlay" style="width:2px" align="center" valign="middle" >

<dmf:image src="icons/sort/lock.gif" hspace="2px">

<dmf:argument name="aspect_name" datafield="aspect_value"/>

</dmf:image>

</dmf:datagridRowTd>

</dmf:celltemplate>

</dmf:celllist>

Questions

1) how i am going to display aspect value in datafield field

2) how custom java class connects with this field

3) how i am going to determine in jsp to show folder related aspect or document related aspect - How to determine between dm_folder object and dm_document object in doclist_body.jsp

Regards

PanfilovAB

I do not know how to help you. Looks like you had wrongly implemented some business logic using aspects and now you faced some problems because webtop does not support aspects.

1. webtop has OOTB support of displaying custom attributes in objects list (you should just add attribute description in corresponding component definition), if you want to achieve the same functionality (i.e. user is able to select additional columns in datagrid) but for aspects you should implement your own ICustomAttributeDataHandler

2. you can write custom tag that accepts r_object_id as parameter, fetches object, get available aspects and renders image on page.

Mayur_shivs

so where should i place this custom tag and can you give me some pseudo code for a tag of this kind , that will be helpful

Regards

PanfilovAB


/**
* @author Andrey B. Panfilov <andrew@panfilov.tel>
*/
public class AspectImage extends Image {

    private String _objectId;

    public AspectImage() {
        super();
    }

    public String getObjectId() {
        return _objectId;
    }

    public void setObjectId(String objectId) {
        _objectId = objectId;
    }

    @Override
    public String getSrc() {
        if (_objectId == null) {
            return null;
        }
        try {
            IDfSession session = ((Component) getForm().getTopForm())
                    .getDfSession();
            IDfPersistentObject object = session.getObject(new DfId(_objectId));
            // some logic based on object instance
        } catch (DfException ex) {
            DfLogger.error(this, ex.getMessage(), null, ex);
        }
        return null;
    }

}


/**
* @author Andrey B. Panfilov <andrew@panfilov.tel>
*/
public class AspectImageTag extends ImageTag {

    private String _objectId;

    private String _objectIdDataField;

    public AspectImageTag() {
        super();
    }

    public String getObjectid() {
        return _objectId;
    }

    public void setObjectid(String objectId) {
        _objectId = objectId;
    }

    public String getObjectiddatafield() {
        return _objectIdDataField;
    }

    public void setObjectiddatafield(String objectIdDataField) {
        _objectIdDataField = objectIdDataField;
    }

    @Override
    protected Class<? extends Control> getControlClass() {
        return AspectImage.class;
    }

    @Override
    protected void setControlProperties(Control control) {
        super.setControlProperties(control);
        if (_objectId != null) {
            ((AspectImage) control).setObjectId(_objectId);
        } else if (_objectIdDataField != null) {
            String objectId = resolveDatafield(_objectIdDataField);
            if (objectId != null) {
                ((AspectImage) control).setObjectId(objectId);
            }
        }
    }

}

Tag description:

<tag>
    <name>aspectimage</name>
    <tagclass>AspectImageTag</tagclass>
    <bodycontent>jsp</bodycontent>
    <attribute>
        <name>id</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>name</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>src</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>datafield</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>objectiddatafield</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>objectid</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>alttext</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>label</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>nlsid</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>width</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>height</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>visible</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>border</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>hspace</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>vspace</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>onclick</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>runatclient</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>style</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>cssclass</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
    <attribute>
        <name>tabindex</name>
        <required>false</required>
        <rtexprvalue>true</rtexprvalue>
        <description>
            TBD.
        </description>
    </attribute>
</tag>

JSP:

</dmf:celllist>

<td>
    <aspectimage objectiddatafield="r_object_id"/>
</td>

Mayur_shivs

Thanks Very much , but the last question is , in which file should i place the tag description you mentioned above

Regards

PanfilovAB

tag descriptions are defined in tld-files (see WEB-INF/tlds/dmform_1_0.tld for example), those files are included in jsps like: <%@ taglib uri="path to tld" prefix="prefix" %>

Mayur_shivs

From class AspectImage's mehtod name public String getSrc() { } i am returning value for aspect attached to particular object , then in AspectImageTag class I suppose we are setting value of this aspect value to a particular row with this method

protected void setControlProperties(Control control) {
super.setControlProperties(control);
if (_objectId != null) {
((AspectImage) control).setObjectId(_objectId);
} else if (_objectIdDataField != null) {
String objectId = resolveDatafield(_objectIdDataField);
if (objectId != null) {
((AspectImage) control).setObjectId(objectId);
}
}
}

I have added tag library to dmform_1_0.tld file and in doclist_body.jsp i made following changes

<dmf:argument name="Policy_Id" datafield="r_object_id"/>

</td>

there is no option you mentioned above objectiddatafield in <dmf:argument />

I copy pasted this in doclist_body.jsp

<td>
<aspectimage objectiddatafield="r_object_id"/>
</td>

cleared the cache of app server , restarted it and launched the webtop , there is custom column in webtop what i mentioned but its not showing aspect value attached to particular record

Regards

PanfilovAB

Actually, you have 3 options to implement your requirements:

1. JSP scriptlet - the ugliest way to do smth.:


<%
    DocList form = (DocList) pageContext.getAttribute(Form.FORM, PageContext.REQUEST_SCOPE);
    Datagrid datagrid = ((Datagrid) form.getControl(DocList.CONTROL_GRID, Datagrid.class));
    DataProvider provider = datagrid.getDataProvider();
%>

<%
    String objectId = provider.getDataField("r_object_id");
    IDfSession dfSession = form.getDfSession();
    IDfSysObject sysobject = (IDfSysObject) dfSession.getObject(new DfId(objectId));
    String imgUrl = null;
    // some logic defining imgUrl;
%>

<dmf:image src="<%=imgUrl%>"/>

2. IControlListener - have the same code as scriptlet, but in component:


</dmf:celllist>

<dmf:image name="myimage"/>


public class ObjectListCustom extends ObjectList implements IControlListener {

    public ObjectListCustom() {
        super();
        addControlListener(this);
    }

    @Override
    public void onControlInitialized(Form form, Control control) {
        if (!(control instanceof Image) || !"myimage".equals(control.getName())) {
            return;
        }
        try {
            String objectId = ((Datagrid) getControl(CONTROL_GRID,
                    Datagrid.class)).getDataProvider().getDataField(
                    "r_object_id");
            IDfSession session = getDfSession();
            IDfSysObject object = (IDfSysObject) session.getObject(new DfId(
                    objectId));
            String imgUrl = null;

            // some logic

            ((Image) control).setSrc(imgUrl);
        } catch (DfException ex) {
            throw new WrapperRuntimeException(ex);
        }

    }
}

3. Custom tag implementation - fully described in

if you do not know how to write custom jsp tags you should put documentum/webtop/etc aside and start reading manuals.

Mayur_shivs

in case of setting only string value in column, what class should i cast control to

((Image) control).setSrc(imgUrl);

and in doclist_body.jsp

<dmf:celllist>

<dmf:celltemplate field=''Policy_Id">

<dmf:datagridRowTd nowrap="true" scope='row' cssclass="docbaseIconOverlay" style="width:2px" align="center" valign="middle" >

<dmf:argument name="Policy_Id" datafield=""/>

</dmf:image>

</dmf:datagridRowTd>

</dmf:celltemplate>

</dmf:celllist>

so the question is how to connect the datafield in above code with the ObjectListCustom class , is this i am going to do by specifying the class in dmform_1_0.tld with the following tag

<name>aspectstring</name>

<tagclass>com.connector.ObjectListCustom</tagclass>

Regards

PanfilovAB

read documentation

Mayur_shivs

Hello

These are the steps i followed for displaying aspect values associated with corresponding row objects, but still values aren't displayed on Jsp page

Steps

Defined custom tag

<shortname>aspecter</shortname>

<tag>

<name>aspectvalue</name>

<tagclass>com.connector.AspectLabelTag</tagclass>

<required>false</required>

</attribute>

<required>false</required>

</attribute>

<required>false</required>

</attribute>

<name>datafield</name>

<required>false</required>

</attribute>

<name>objectiddatafield</name>

</attribute>

<name>alttext</name>

<required>false</required>

</attribute>

<name>label</name>

<required>false</required>

</attribute>

<name>nlsid</name>

<required>false</required>

</attribute>

<name>width</name>

<required>false</required>

</attribute>

<name>height</name>

<required>false</required>

</attribute>

<name>visible</name>

<required>false</required>

</attribute>

<name>border</name>

<required>false</required>

</attribute>

<name>hspace</name>

<required>false</required>

</attribute>

<name>vspace</name>

<required>false</required>

</attribute>

<name>onclick</name>

<required>false</required>

</attribute>

<name>runatclient</name>

<required>false</required>

</attribute>

<name>style</name>

<required>false</required>

</attribute>

<name>cssclass</name>

<required>false</required>

</attribute>

<name>tabindex</name>

<required>false</required>

</attribute>

</tag>

Java Classes

public class AspectLabelTag extends ControlTag{

private String aspectValue = null;

private String objectiddatafield ;

public String getObjectiddatafield() {

return objectiddatafield;

}

public void setObjectiddatafield(String objectiddatafield) {

this.objectiddatafield = objectiddatafield;

}

public String getAspectValue() {

return aspectValue;

}

public void setAspectValue(String aspectValue) {

this.aspectValue = aspectValue;

}

@Override

protected Class<? extends Control> getControlClass() {

return AspectLabel.class;

}

@Override

protected void setControlProperties(Control control) {

super.setControlProperties(control);

String policyId = null;

AspectLabel aspectLabel = (AspectLabel) control;

IDfSession session = ((Component) getForm().getTopForm()).getDfSession();

String r_object_id = resolveDatafield(objectiddatafield);

try {

IDfPersistentObject object = session.getObject(new DfId(r_object_id));

if(object.isInstanceOf("dm_folder")){

policyId = getHotFolderID(session, r_object_id); // method return aspect value depending on r_object_id

} else if (object.isInstanceOf("dm_document")){

policyId = getFileSecureID(session, r_object_id); // method return aspect value depending on r_object_id

}

aspectLabel.setPolicyId(policyId);

} catch (DfException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

protected void renderEnd(JspWriter out) throws IOException {

//simply just output the area value.

//this is a simplified example for demonstration purposes only

AspectLabel areaLabel = (AspectLabel) getControl();

out.print(areaLabel.getPolicyId());

}

AspectLabel

public class AspectLabel extends Control {

private String policyId;

public AspectLabel() {

super();

}

public String getPolicyId() {

return policyId;

}

public void setPolicyId(String policyId) {

this.policyId = policyId;

}

and in doclist_body.jsp i added following bit

<dmf:celllist>

<dmf:celltemplate field="Policy_Id">

<dmf:datagridRowTd>

<aspecter:aspectvalue objectiddatafield="r_object_id"></aspecter:aspectvalue>

</dmf:datagridRowTd>

</dmf:celltemplate>

</dmf:celllist>

is something i am missing in these steps , and the value i am setting in AspectLabelTag class's method setControlProperties - aspectLabel.setPolicyId(policyId);

is it going to be displayed with <dmf:celltemplate field="Policy_Id"> or i need to specify the connection between this , if that is the case then how to do it

Regards

PanfilovAB

your problem is you put your tag inside <celltemplate>, datagrid renders cell templates only when it knows about corresponding fields, you query does not contain filed Policy_Id, and you do not create any ICustomAttributeDataHandler, so you should put your tag outside <celltemplate> and outside <celllist>.

Mayur_shivs

Hello , In case of home cabinet i am able to show aspect value within the added column by extending following xml

<component

extends="homecabinet_classic:/webtop/config/homecabinet_classic_component.xml"

id="homecabinet_classic">

</component>

but in case of other cabinets , i am extending following xml and also added custom column to it

<!--

set the value to "true" means that all the invisible attributes

will be added to the columns map. The default value is "false"

-->

<attribute>Policy_Id</attribute>

<label>Policy_Id</label>

</column>

</columns>

</component>

and i am implementing ICustomAttributeDataHandler

but the custom column with the name "Policy_Id" is not displayed in this view

what should be the cause for this , in case of object list view is it necessary to edit doclist_body.jsp

Regards