Structures_DataGrid_Renderer_Smarty
Вернуться к: Renderer drivers
Structures_DataGrid_Renderer_Smarty
This driver supports the following operation modes:
| Mode | Supported? |
|---|---|
| Container Support | yes |
| Output Buffering | yes |
| Direct Rendering | no |
| Streaming | no |
| Object Preserving | yes |
Options
This driver accepts the following options:
| Option | Type | Description | Default Value |
|---|---|---|---|
| associative | bool | By default the column set and the records are numerically indexed arrays. By setting this option to true the keys will be field names instead. | false |
| buildFooter | bool | Whether to build the footer. | true |
| buildHeader | bool | Whether to build the header. | true |
| columnAttributes | array | Column cells attributes. This is an array of the form: array(fieldName => array(attribute => value, ...) ...) This option is only used by XML/HTML based drivers. | array() |
| convertEntities | bool | Whether or not to convert html entities. This calls htmlspecialchars(). | true |
| defaultCellValue | string | What value to put by default into empty cells. | null |
| defaultColumnValues | array | Per-column default cell value. This is an array of the form: array(fieldName => value, ...). | array() |
| encoding | string | The content encoding. If the mbstring extension is present the default value is set from mb_internal_encoding(), otherwise it is ISO-8859-1. | 'ISO-8859-1' |
| excludeVars | array | Variables to be removed from the generated HTTP queries. | array() |
| extraVars | array | Variables to be added to the generated HTTP queries. | array() |
| fillWithEmptyRows | bool | Ensures that all pages have the same number of rows. | false |
| hideColumnLinks | array | By default sorting links are enabled on all columns. With this option it is possible to disable sorting links on specific columns. This is an array of the form: array(fieldName, ...). This option only affects drivers that support sorting. | array() |
| numberAlign | bool | Whether to right-align numeric values. | true |
| onMove | string | Name of a Javascript function to call on onclick/onsubmit events when the user is either paging or sorting the data. This function receives a single object argument of the form: { page: <page>, sort: [{field: <field>, direction: <direction>}, ...], data: <user_data> }. Remark: setting this option doesn't remove the href attribute, you should return false from your handler function to void it (eg: for AJAX, etc..). | null |
| onMoveData | string | User data passed in the "data" member of the object argument passed to onMove. No JSON serialization is performed, this is assigned as a raw string to the "data" attribute. It's up to you to add quotes, slashes, etc... | '' |
| selfPath | string | The complete path for sorting and paging links. | $_SERVER['PHP_SELF'] |
| sortingResetsPaging | bool | Whether sorting HTTP queries reset paging. | true |
| varPrefix | string | Prefix for smarty variables and functions assigned by this driver. Can be used in conjunction with Structure_DataGrid::setRequestPrefix() for displaying several grids on a single page. | '' |
General notes
To use this driver you need the Smarty template engine from http://smarty.php.net
This driver does not support the render() method, it is only able to:
Either fill() a Smarty object by assigning variables and registering the {getPaging} smarty function. It's up to you to call Smarty::display() after the Smarty object has been filled.
Or return all variables as a PHP array from getOutput(), for maximum flexibility, so that you can assign them the way you like to your Smarty instance.
This driver assigns the following Smarty variables:
- $columnSet: array of columns specifications structure: array ( 0 => array ( 'name' => field name, 'label' => column label, 'link' => sorting link, 'attributes' => attributes string, 'direction' => 'ASC', 'DESC' or '', 'onclick' => onMove call ), ... ) - $recordSet: array of records values - $currentPage: current page (starting from 1) - $nextPage: next page - $previousPage: previous page - $recordLimit: number of rows per page - $pagesNum: number of pages - $columnsNum: number of columns - $recordsNum: number of records in the current page - $totalRecordsNum: total number of records - $firstRecord: first record number (starting from 1) - $lastRecord: last record number (starting from 1) - $currentSort: array with column names and the directions used for sorting - $datagrid: a reference that you can pass to {getPaging}
This driver registers a Smarty custom function named getPaging that can be called from Smarty templates with {getPaging} in order to print paging links. This function accepts the same parameters as the pagerOptions option of Structures_DataGrid_Renderer_Pager.
{getPaging} accepts an optional "datagrid" parameter which you can pass the $datagrid variable, to display paging for an arbitrary datagrid (useful with multiple dynamic datagrids on a single page).
Object Records : this drivers preserves object records if provided. This means that if your datasource provides objects instead of associative arrays as records, you can access their properties and methods in your smarty template, with something like: {$recordSet[col]->getSomeInformation()}.
Examples
Using the Smarty renderer
<?php
require_once 'Structures/DataGrid.php';
require_once 'Smarty.class.php';
$datagrid =& new Structures_DataGrid(10);
$options = array('dsn' => 'mysql://username@localhost/mydatabase');
$datagrid->bind("SELECT * FROM mytable", $options);
$smarty = new Smarty();
$datagrid->fill($smarty);
$smarty->display('smarty-simple.tpl');
?> Smarty template with sorting and paging (smarty-simple.tpl)
<?php
<!-- Show paging links using the custom getPaging function -->
{getPaging prevImg="<<" nextImg=">>" separator=" | " delta="5"}
<p>Showing records {$firstRecord} to {$lastRecord}
from {$totalRecordsNum}, page {$currentPage} of {$pagesNum}</p>
<table cellspacing="0">
<!-- Build header -->
<tr>
{section name=col loop=$columnSet}
<th {$columnSet[col].attributes}>
<!-- Check if the column is sortable -->
{if $columnSet[col].link != ""}
<a href="{$columnSet[col].link}">{$columnSet[col].label}</a>
<!-- Show the current ordering with an arrow -->
{if $columnSet[col].direction == "ASC"}
↓
{elseif $columnSet[col].direction == "DESC"}
↑
{/if}
{else}
{$columnSet[col].label}
{/if}
</th>
{/section}
</tr>
<!-- Build body -->
{section name=row loop=$recordSet}
<tr {if $smarty.section.row.iteration is even}bgcolor="#EEEEEE"{/if}>
{section name=col loop=$recordSet[row]}
<td {$columnSet[col].attributes}>{$recordSet[row][col]}</td>
{/section}
</tr>
{/section}
</table>
?> Вернуться к: Renderer drivers