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Property Summary
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Method Summary
void
addHTMLProperty(row, col, name, value)
Add an HTML property to an HTML tag produced in getAsHTML().
void
addRow(index, array)
Add a row to the dataset.
void
addRow(array)
Add a row to the dataset.
createDataSource(name)
Create a data source from the data set with specified name and using specified types.
createDataSource(name, types)
Create a data source from the data set with specified name and using specified types.
Object[]
getColumnAsArray(index)
Get the column data of a dataset as an Array.
getColumnName(index)
Get a column name based on index.
getException()
Get the database exception if an error occurred.
getMaxColumnIndex()
Get the number of columns in the dataset.
getMaxRowIndex()
Get the number of rows in the dataset.
Object[]
getRowAsArray(index)
Get the row data of a dataset as an Array.
hadMoreData()
Return true if there is more data in the resultset then specified by maxReturnedRows at query time.
removeColumn(index)
Remove a column by index from the dataset.
void
removeRow(row)
Remove a row from the dataset.
void
setValue(row, col, obj)
Set the value specified by row and column position from the dataset.
void
sort(col, sort_direction)
Sort the dataset on the given column in ascending or descending.
void
sort(rowComparator)
Sort the dataset using a comparator function.
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Property Details
Get or set the record index of the dataset.
Returns
Number
Sample
//assuming the variable dataset contains a dataset //to set the rowIndex: dataset.rowIndex = 1 //sets the rowIndex to the first row (dataset is 1-based) //to retrieve the rowIndex of the currently selected row var currRow = dataset.rowIndex
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Method Details
addColumn
(name, [index], [type])
adds a column with the specified name to the dataset.
Parameters
name – column name.
[index] – column index number between 1 and getMaxColumnIndex().
[type] – the type of column, see JSColumn constants.
Returns
Boolean – true if succeeded, else false.
Sample
//assuming the variable dataset contains a dataset var success = dataset.addColumn('columnName',1);
void
addHTMLProperty
(row, col, name, value)
Add an HTML property to an HTML tag produced in getAsHTML().
For row and col parameters use:
1 = applies to the container
0 = applies to all
>0 = applies to specific cell
Returns
void
Sample
//adds a container property (to TABLE tag) dataset.addHTMLProperty(-1,-1,'cellspacing','3'); dataset.addHTMLProperty(-1,-1,'style','border-collapse:collapse;'); //to have a single line border //adds a row property to all rows (to TR tag) dataset.addHTMLProperty(0,0,'class','text'); //adds a row property to second row (to TR tag) dataset.addHTMLProperty(2,0,'class','text'); //adds a column property to all 3rd columns (to TD tag) dataset.addHTMLProperty(0,3,'class','redcolumn') ; //adds a specific cell property (to TD tag) dataset.addHTMLProperty(2,4,'color','blue'); globals.html_field = '<html>'+dataset.getAsHTML()+'</html>';
void
addRow
(index, array)
Add a row to the dataset.
Returns
void
Sample
//assuming the variable dataset contains a dataset dataset.addRow(new Array(1,2,3,4,5,6,7,7)); //adds a row with 8 columns dataset.addRow(2, new Array(1,2,3,4,5,6,7,7)); //adds a row with 8 columns after row 2
void
addRow
(array)
Add a row to the dataset. The row will be added as the last row.
Parameters
{Object[]} array – row data
Returns
void
Sample
//assuming the variable dataset contains a dataset dataset.addRow(new Array(1,2,3,4,5,6,7,7)); //adds a row with 8 columns dataset.addRow(2, new Array(1,2,3,4,5,6,7,7)); //adds a row with 8 columns after row 2
createDataSource
(name)
Create a data source from the data set with specified name and using specified types.
The types are inferred from the data if possible.
Parameters
{String} name – data source name
Returns
String – String uri reference to the created data source.
Sample
ds.addColumn('my_id'); // note: use regular javascript identifiers so they can be used in scripting ds.addColumn('my_label'); var uri = ds.createDataSource('mydata', [JSColumn.INTEGER, JSColumn.TEXT]); var jsform = solutionModel.newForm(fname, uri, null, true, 300, 300); var query = 'select customerid, address, city, country from customers'; var ds2 = databaseManager.getDataSetByQuery('example_data', query, null, 999); var uri2 = ds2.createDataSource('mydata2'); // types are inferred from query result
createDataSource
(name, types)
Create a data source from the data set with specified name and using specified types.
Returns
String – String uri reference to the created data source.
Sample
ds.addColumn('my_id'); // note: use regular javascript identifiers so they can be used in scripting ds.addColumn('my_label'); var uri = ds.createDataSource('mydata', [JSColumn.INTEGER, JSColumn.TEXT]); var jsform = solutionModel.newForm(fname, uri, null, true, 300, 300); var query = 'select customerid, address, city, country from customers'; var ds2 = databaseManager.getDataSetByQuery('example_data', query, null, 999); var uri2 = ds2.createDataSource('mydata2'); // types are inferred from query result
getAsHTML
([escape_values], [escape_spaces], [multi_line_markup], [pretty_indent], [add_column_names])
Get the dataset as an html table.
Parameters
[escape_values] – if true, replaces illegal HTML characters with corresponding valid escape sequences.
[escape_spaces] – if true, replaces text spaces with non-breaking space tags ( ) and tabs by four non-breaking space tags.
[multi_line_markup] – if true, multiLineMarkup will enforce new lines that are in the text; single new lines will be replaced by <br>, multiple new lines will be replaced by <p>
[pretty_indent] – if true, adds indentation for more readable HTML code.
[add_column_names] – if false, column headers will not be added to the table.
Returns
String – String html.
Sample
//gets a dataset based on a query //useful to limit the number of rows var maxReturnedRows = 10; var query = 'select c1,c2,c3 from test_table where start_date = ?'; //to access data by name, do not use '.' or special characters in names or aliases var args = new Array(); args[0] = order_date //or new Date(); var dataset = databaseManager.getDataSetByQuery(databaseManager.getDataSourceServerName(controller.getDataSource()),query,args,maxReturnedRows); // gets a dataset with escape values; escape spaces (lines will not wrap); no multi-line markup; with pretty indentation; shows column names var htmlTable = dataset.getAsHTML(true, true, false, true, true); //assigns the dataset to a field and sets the display type to HTML_AREA //assuming the html_field is a global text variable globals.html_field = '<html>'+dataset.getAsHTML()+'</html>'; //Note: To display an HTML_AREA field as an HTML page, add HTML tags at the beginning '<html>' and at the end '</html>'.
getAsText
(column_separator, row_separator, value_delimiter, add_column_names)
Get the dataset as formatted text.
Parameters
{String} column_separator – any specified column separator; examples: tab '\t'; comma ','; semicolon ';'; space ' ' .
{String} row_separator – the specified row separator; examples: new line '\n'.
{String} value_delimiter – the specified value delimiter; example: double quote '"'.
{Boolean} add_column_names – if true column names will be added as a first row.
Returns
String – String formatted text.
Sample
//assuming the variable dataset contains a dataset //you can create csv or tab delimited results var csv = dataset.getAsText(',','\n','"',true) var tab = dataset.getAsText('\t','\n','"',true)
Object[]
getColumnAsArray
(index)
Get the column data of a dataset as an Array.
Parameters
{Number} index – index of column (1-based).
Returns
Object[] – Object array of data.
Sample
//assuming the variable dataset contains a dataset var dataArray = dataset.getColumnAsArray(1); //puts the contents from the first column of the dataset into an array //once you have it as an array you can loop through it or feed it to a custom valuelist for example
getColumnName
(index)
Get a column name based on index.
Parameters
{Number} index – index of column (1-based).
Returns
String – String column name.
Sample
//assuming the variable dataset contains a dataset var firstColumName = dataset.getColumnName(1) //retrieves the first columnname into the variable firstColumName //using a loop you can get all columnames in an array: var query = 'select * from customers'; var dataset = databaseManager.getDataSetByQuery(databaseManager.getDataSourceServerName(controller.getDataSource()), query, null, 100); var colArray = new Array() for (var i = 1; i <= dataset.getMaxColumnIndex(); i++) { colArray[i-1] = dataset.getColumnName(i) //note the -1, because an array is zero based and dataset is 1 based. }
getException
()
Get the database exception if an error occurred.
Returns
ServoyException – ServoyException exception or null when not available.
Sample
//assuming the variable dataset contains a dataset var dbException = dataset.getException();
getMaxColumnIndex
()
Get the number of columns in the dataset.
Returns
Number – int number of columns.
Sample
//assuming the variable dataset contains a dataset for (var i = 1; i <= dataset.getMaxColumnIndex(); i++) { colArray[i-1] = dataset.getColumnName(i) //have to subtract 1, because an array is zero based and a dataset is 1 based. }
getMaxRowIndex
()
Get the number of rows in the dataset.
Returns
Number – int number of rows.
Sample
//assuming the variable dataset contains a dataset var totalRows = dataset.getMaxRowIndex();
Object[]
getRowAsArray
(index)
Get the row data of a dataset as an Array.
Parameters
{Number} index – index of row (1-based).
Returns
Object[] – Object array of data.
Sample
//assuming the variable dataset contains a dataset var dataArray = dataset.getRowAsArray(1); //puts the contents from the first row of the dataset into an array //once you have it as an array you can loop through it
getValue
(row, col)
Get the value specified by row and column position from the dataset.
Returns
Object – Object value
Sample
//assuming the variable dataset contains a dataset var dataAtRow2Col1 = dataset.getValue(2, 1);
hadMoreData
()
Return true if there is more data in the resultset then specified by maxReturnedRows at query time.
Returns
Boolean – boolean more data available
Sample
var ds = databaseManager.getDataSetByQuery('example_data', 'select order_id from orders', null, 10000) if (ds.hadMoreData()) { // handle large result }
removeColumn
(index)
Remove a column by index from the dataset.
Parameters
{Number} index – index of column to remove (1-based)
Returns
Boolean – true if succeeded, else false.
Sample
//assuming the variable dataset contains a dataset var success = dataset.removeColumn(1); // removes first column
void
removeRow
(row)
Remove a row from the dataset.
Parameters
{Number} row – row index to remove, -1 for all rows
Returns
void
Sample
//assuming the variable dataset contains a dataset dataset.removeRow(1); //removes the first row dataset.removeRow(-1); //removes all rows
void
setValue
(row, col, obj)
Set the value specified by row and column position from the dataset.
Use row = -1, to set columnnames.
Returns
void
Sample
//assuming the variable dataset contains a dataset dataset.getValue(2, 1,'data');
void
sort
(col, sort_direction)
Sort the dataset on the given column in ascending or descending.
Returns
void
Sample
//assuming the variable dataset contains a dataset dataset.sort(1,false)
void
sort
(rowComparator)
Sort the dataset using a comparator function.
The comparator function is called to compare
two rows, that are passed as arguments, and
it will return -1/0/1 if the first row is less/equal/greater
then the second row.
Parameters
{Function} rowComparator – the function used to compare two rows
Returns
void
Sample
dataset.sort(mySortFunction); function mySortFunction(r1, r2) { var o = 0; if(r1[0] < r2[0]) { o = -1; } else if(r1[0] > r2[0]) { o = 1; } return o; }