Servoy 2020 Documentation
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Refresh page Nov 30, 2023 21:41

Supported Clients
SmartClient WebClient NGClient

Methods Summary
JSColumnObject createNewColumn(columnName, type, length) Creates a new column in this table.
JSColumnObject createNewColumn(columnName, type, length, allowNull) Creates a new column in this table.
JSColumnObject createNewColumn(columnName, type, length, allowNull, pkColumn) Creates a new column in this table.
void deleteColumn(columnName) Deletes the column with the specified name from this table.
JSColumn getColumn(name) Returns a JSColumn for the named column (or column dataproviderID).
Array getColumnNames() Returns an array containing the names of all table columns.
String getDataSource() Returns the table data source uri.
String getQuotedSQLName() Returns a quoted version of the table name, if necessary, as defined by the actual database used.
Array getRowIdentifierColumnNames() Returns an array containing the names of the identifier (PK) column(s).
String getSQLName() Returns the table name.
String getServerName() Returns the Servoy server name.
Boolean isMetadataTable() Returns whether table was flagged as metadata table.

Methods Details

createNewColumn(columnName, type, length)

 
Creates a new column in this table. The name, type and length of the new column must be specified. For specifying the
type of the column, use the JSColumn constants. The column is not actually created in the database until this
table is synchronized with the database using the JSServer.synchronizeWithDB method.

The method returns a JSColumn instance that corresponds to the newly created column. If any error occurs and the column cannot be created, then the method
returns null.

Parameters

String columnName ;
Number type ;
Number length ;

Returns

JSColumnObject

Supported Clients

SmartClient,WebClient,NGClient

Sample

var server = plugins.maintenance.getServer("example_data");
if (server)
{
	var table = server.createNewTable("users");
	if (table)
	{
		var pk = table.createNewColumn("id", JSColumn.MEDIA, 16); // can also use (JSColumn.TEXT, 36) for UUIDs
		pk.rowIdentifierType = JSColumn.PK_COLUMN;
		pk.setFlag(JSColumn.UUID_COLUMN, true)
		pk.sequenceType = JSColumn.UUID_GENERATOR
		var c = table.createNewColumn("name", JSColumn.TEXT, 100);
		c.allowNull = false
		table.createNewColumn("age", JSColumn.INTEGER, 0);
		table.createNewColumn("last_login", JSColumn.DATETIME, 0);
		var result = server.synchronizeWithDB(table);
		if (result) application.output("Table successfully created.");
		else application.output("Table not created.");
	}
}

createNewColumn(columnName, type, length, allowNull)

 
Creates a new column in this table. The name, type and length of the new column must be specified. For specifying the
type of the column, use the JSColumn constants. The column is not actually created in the database until this
table is synchronized with the database using the JSServer.synchronizeWithDB method.

The method returns a JSColumn instance that corresponds to the newly created column. If any error occurs and the column cannot be created, then the method
returns null.

Parameters

String columnName ;
Number type ;
Number length ;
Boolean allowNull ;

Returns

JSColumnObject

Supported Clients

SmartClient,WebClient,NGClient

Sample

var server = plugins.maintenance.getServer("example_data");
if (server)
{
	var table = server.createNewTable("users");
	if (table)
	{
		var pk = table.createNewColumn("id", JSColumn.MEDIA, 16); // can also use (JSColumn.TEXT, 36) for UUIDs
		pk.rowIdentifierType = JSColumn.PK_COLUMN;
		pk.setFlag(JSColumn.UUID_COLUMN, true)
		pk.sequenceType = JSColumn.UUID_GENERATOR
		var c = table.createNewColumn("name", JSColumn.TEXT, 100);
		c.allowNull = false
		table.createNewColumn("age", JSColumn.INTEGER, 0);
		table.createNewColumn("last_login", JSColumn.DATETIME, 0);
		var result = server.synchronizeWithDB(table);
		if (result) application.output("Table successfully created.");
		else application.output("Table not created.");
	}
}

createNewColumn(columnName, type, length, allowNull, pkColumn)

 
Creates a new column in this table. The name, type and length of the new column must be specified. For specifying the
type of the column, use the JSColumn constants. The column is not actually created in the database until this
table is synchronized with the database using the JSServer.synchronizeWithDB method.

The method returns a JSColumn instance that corresponds to the newly created column. If any error occurs and the column cannot be created, then the method
returns null.

Parameters

String columnName ;
Number type ;
Number length ;
Boolean allowNull ;
Boolean pkColumn ;

Returns

JSColumnObject

Supported Clients

SmartClient,WebClient,NGClient

Sample

var server = plugins.maintenance.getServer("example_data");
if (server)
{
	var table = server.createNewTable("users");
	if (table)
	{
		var pk = table.createNewColumn("id", JSColumn.MEDIA, 16); // can also use (JSColumn.TEXT, 36) for UUIDs
		pk.rowIdentifierType = JSColumn.PK_COLUMN;
		pk.setFlag(JSColumn.UUID_COLUMN, true)
		pk.sequenceType = JSColumn.UUID_GENERATOR
		var c = table.createNewColumn("name", JSColumn.TEXT, 100);
		c.allowNull = false
		table.createNewColumn("age", JSColumn.INTEGER, 0);
		table.createNewColumn("last_login", JSColumn.DATETIME, 0);
		var result = server.synchronizeWithDB(table);
		if (result) application.output("Table successfully created.");
		else application.output("Table not created.");
	}
}

deleteColumn(columnName)

 
Deletes the column with the specified name from this table. The column is not actually deleted from the database until this
table is synchronized with the database using the JSServer.synchronizeWithDB method.

Parameters

String columnName ;

Supported Clients

SmartClient,WebClient,NGClient

Sample

var server = plugins.maintenance.getServer("example_data");
if (server) {
	var table = server.getTable("users");
	if (table) {
		table.deleteColumn("last_login");
		server.synchronizeWithDB(table);
	}
}

getColumn(name)

 
Returns a JSColumn for the named column (or column dataproviderID).

Parameters

String name The name of the column to return the value from.

Returns

JSColumn JSColumn column.

Supported Clients

SmartClient,WebClient,NGClient

Sample

var jsTable = databaseManager.getTable('udm', 'campaigns')
var jsColumn = jsTable.getColumn('campaign_name')

getColumnNames()

 
Returns an array containing the names of all table columns.
If the table is in mem, then the internal rowid column name is not returned.

Returns

Array String array of column names.

Supported Clients

SmartClient,WebClient,NGClient

Sample

var jsTable = databaseManager.getTable('udm', 'campaigns')
var columnNames = jsTable.getColumnNames()

getDataSource()

 
Returns the table data source uri.

Returns

String String datasource uri.

Supported Clients

SmartClient,WebClient,NGClient

Sample

var jsTable = databaseManager.getTable('udm', 'campaigns')
var dataSource = jsTable.getDataSource()

getQuotedSQLName()

 
Returns a quoted version of the table name, if necessary, as defined by the actual database used.

Returns

String String table name, quoted if needed.

Supported Clients

SmartClient,WebClient,NGClient

Sample

//use with the raw SQL plugin:
//if the table name contains characters that are illegal in sql, the table name will be quoted
var jsTable = databaseManager.getTable('udm', 'campaigns')
var quotedTableName = jsTable.getQuotedSQLName()
plugins.rawSQL.executeSQL('udm',  quotedTableName,  'select * from ' + quotedTableName + ' where is_active = ?', [1])

getRowIdentifierColumnNames()

 
Returns an array containing the names of the identifier (PK) column(s).
 Please note that if the table is in mem, then the internal rowid column name is also returned.

Returns

Array String array of row identifier column names.

Supported Clients

SmartClient,WebClient,NGClient

Sample

var jsTable = databaseManager.getTable('udm', 'campaigns')
var identifierColumnNames = jsTable.getRowIdentifierColumnNames()

getSQLName()

 
Returns the table name.

Returns

String String table name.

Supported Clients

SmartClient,WebClient,NGClient

Sample

var jsTable = databaseManager.getTable('udm', 'campaigns')
var tableNameForDisplay = jsTable.getSQLName()

getServerName()

 
Returns the Servoy server name.

Returns

String String server name.

Supported Clients

SmartClient,WebClient,NGClient

Sample

var jsTable = databaseManager.getTable('udm', 'campaigns')
var serverName = jsTable.getServerName()

isMetadataTable()

 
Returns whether table was flagged as metadata table.

Returns

Boolean boolean is metadata

Supported Clients

SmartClient,WebClient,NGClient

Sample

var jsTable = databaseManager.getTable('udm', 'campaigns')
var isMetaDataTable = jsTable.isMetadataTable()

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