Relation samples

Basics

On most methods, you’ll see the parameter named “nodeId”. The value of this parameter can be a valid document, folder, mail or record UUID or path.

Tip

Example of nodeId:

• Using UUID -> “f123a950-0329-4d62-8328-0ff500fd42db”

Suggested code sample

First, you must create the webservice object:

OKMWebservices ws = OKMWebservicesFactory.newInstance(host);

Then should log in using the method “login”. You can access the “login” method from webservice object “ws” as is shown below:

ws.login(user, password);

Caution

Once logged with the webservices, the session is kept in the webservice Object. Then you can use the other API method.

At this point, you can use all the Relation methods from the “relation” class as shown below:

ws.relation.getRelationTypes(RelationType.BIDIRECTIONAL);

Methods

getRelationTypes

Description:

Method	Return values	Description
getRelationTypes(String type)	List	Retrieves a list of all relations defined of a type.

Available types values:

• RelationType.BIDIRECTIONAL
• RelationType.PARENT_CHILD
• RelationType.MANY_TO_MANY

Note

More information on Relation types.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationType type in ws.relation.getRelationTypes(RelationType.PARENT_CHILD))
{
System.Console.WriteLine(type);
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

add-relation

Description:

Method	Return values	Description
add-relation(String nodeAId, String nodeBId, long relTypeId)	void	Sets a relation between two nodes.

The parameters nodeAId and nodeBId should be any valid document, folder, mail, or record UUID.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationType type in ws.relation.getRelationTypes(RelationType.BIDIRECTIONAL))
{
// looking for a relation named invoice
if (type.title.Equals("invoice"))
{
ws.relation.addRelation("50b7a5b9-89d2-430e-bbc9-6a6e01662a71", "055e4384-7c70-4456-b32b-f5a55a79861f", type.id);
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

deleteRelation

Description:

Method	Return values	Description
deleteRelation(long relationId)	void	Deletes a relationship.

Caution

Only when any node will not use the relation can it be deleted? Otherwise, you’ll get an error.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationType type in ws.relation.getRelationTypes(RelationType.BIDIRECTIONAL))
{
// looking for a relation named invoice
if (type.title.Equals("invoice"))
{
ws.relation.deleteRelation(type.id);
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

getRelations

Description:

Method	Return values	Description
getRelations(String nodeId)	List	Retrieves a list of all relations of a node.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (Relation relation in ws.relation.getRelations("055e4384-7c70-4456-b32b-f5a55a79861f"))
{
System.Console.WriteLine(relation);
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

getRelationGroups

Description:

Method	Return values	Description
getRelationGroups(String nodeId)	List	Retrieves a list of all related groups of a node.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationGroup rGroup in ws.relation.getRelationGroups("055e4384-7c70-4456-b32b-f5a55a79861f"))
{
System.Console.WriteLine(rGroup.toString());
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

addRelationGroup

Description:

Method	Return values	Description
addRelationGroup(String nodeId, String groupName, long type)	void	Adds a relation group at a node.

On a relation group only makes sense to apply a relation type of RelationType.MANY_TO_MANY.

Note

More information on Relation types.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationType type in ws.relation.getRelationTypes(RelationType.MANY_TO_MANY))
{
if (type.title.Equals("staple"))
{
ws.relation.addRelationGroup("055e4384-7c70-4456-b32b-f5a55a79861f", "staple group", type.id);
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

addNodeToGroup

Description:

Method	Return values	Description
addNodeToGroup(String nodeId, long groupId)	void	Adds a node to an existing relation group.

A relation group only has the sense to apply the type RelationType.MANY_TO_MANY.

Note

More information on Relation types.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationGroup rGroup in ws.relation.getRelationGroups("055e4384-7c70-4456-b32b-f5a55a79861f"))
{
if (rGroup.name.Equals("staple group"))
{
ws.relation.addNodeToGroup("50b7a5b9-89d2-430e-bbc9-6a6e01662a71", rGroup.id);
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

deleteRelationGroup

Description:

Method	Return values	Description
deleteRelationGroup(long groupId)	void	Removes a node from a related group.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationGroup rGroup in ws.relation.getRelationGroups("50b7a5b9-89d2-430e-bbc9-6a6e01662a71"))
{
if (rGroup.name.Equals("staple group"))
{
ws.relation.deleteRelationGroup(rGroup.id);
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

findRelationGroup

Description:

Method	Return values	Description
findRelationGroup(long groupId)	RelationGroup	Finds a relation group by id.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
RelationGroup rg = new RelationGroup();
foreach (RelationGroup rGroup in ws.getRelationGroups("50b7a5b9-89d2-430e-bbc9-6a6e01662a71"))
{
if (rGroup.name.Equals("staple group3"))
{
rg = ws.relation.findRelationGroup(rGroup.id);
break;
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

setRelationGroupName

Description:

Method	Return values	Description
setRelationGroupName(long groupId, String groupName)	void	Changes the relation group name.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
RelationGroup rg = new RelationGroup();
foreach (RelationGroup rGroup in ws.relation.getRelationGroups("50b7a5b9-89d2-430e-bbc9-6a6e01662a71"))
{
if (rGroup.name.Equals("staple group3"))
{
ws.relation.setRelationGroupName(rGroup.id, "newGroup");
rg = ws.relation.findRelationGroup(rGroup.id);
break;
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

getAllRelationGroups

Description:

Method	Return values	Description
getAllRelationGroups(int relationTypeId, String filter, int offset, int limit)	RelationGroupResultSet	Retrieves a list of all related groups.

Tip

The parameter “limit” and “offset” allows you to retrieve just a portion of the results of a query.

• The parameter “limit” limits the number of results returned.
• The parameter “offset” says to skip that many results before the beginning to return results.

Note

For example, if your query has 1000 results, but you only want to return the first 10, you should use these values:

• limit=10
• offset=0

Now suppose you want to show the results from 11-20; you should use these values:

• limit=10
• offset=10

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
int relationTypeId = 1;
String filter = "";
RelationGroupResultSet resultSet = ws.relation.getAllRelationGroups(relationTypeId, filter, 0, 10);
foreach (RelationGroup relationGroup in resultSet.results)
{
Console.WriteLine(relationGroup.toString());
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}

deleteRelationGroupItem

Description:

Method	Return values	Description
deleteRelationGroupItem(String nodeId, long groupId)	void	Delete a node relation of a group.

Example:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using com.openkm.sdk4csharp;
using com.openkm.sdk4csharp.bean;

namespace OKMRest
{
public class Program
{
static void Main(string[] args)
{
String host = "http://localhost:8080/openkm";
String username = "okmAdmin";
String password = "admin";
OKMWebservice ws = OKMWebservicesFactory.newInstance(host);

try
{
ws.login(user, password);
foreach (RelationGroup rGroup in ws.relation.getRelationGroups("50b7a5b9-89d2-430e-bbc9-6a6e01662a71"))
{
if (rGroup.name.Equals("staple group3"))
{
ws.relation.deleteRelationGroupItem("50b7a5b9-89d2-430e-bbc9-6a6e01662a71", rGroup.id);
}
}
}
catch (Exception e)
{
System.Console.WriteLine(e.ToString());
}
}
}
}