我正在尝试为SilverStripe站点做一些非常不同的事情:在几个子页面上是数据表,这些表每个都有自己的列标题集,有些表的列比其他表多。我想避免在富文本编辑器中构建表格,因为这会导致很多错误,并且随着时间的推移维持这是一件麻烦事。
我想要做的是创建一个DataObject,它允许第n个列和第n个相应的行。这样我可以在模板中调用一个循环(或可能是两个),我已经有了HTML表结构。内容管理员可以完全控制任何给定子页面的表格中的哪些列,并且他们不必担心维护HTML表格设置。
我有一些想法没有产生我想要的结果而没有a)使内容管理器的UI体验过于复杂,以及b)无法正确地将列与行链接。
我曾想过为Table Headers创建一个DataObject,为Table Rows创建一个DataObject,但后来我很难理解如何以一种有意义的方式组合它们,特别是因为可能有任意数量的列。 / p>
有人会有任何建议来接近这个吗?
更新:好的,我有一些可以使用的TableRowItem数据对象,并且接近工作。但是,现在的问题是:当我基本上即时创建它们时,如何将字段值保存到数据库?就像现在一样,保存到数据库的唯一字段是PDF文件上传字段,其他所有内容在点击“创建”时都会被删除。
<?php
class TruckBodyPdfTableRowItem extends DataObject {
private static $db = array(
);
// One-to-one relationship with gallery page
private static $has_one = array(
'TablePage'=> 'Page',
'TableColumnSet' => 'TableColumnSet',
'PDF' => 'File',
);
// tidy up the CMS by not showing these fields
public function getCMSFields() {
$fields = parent::getCMSFields();
$fields->removeFieldFromTab("Root.Main","TablePageID");
$fields->removeFieldFromTab("Root.Main","TableColumnSetID");
$fields->removeFieldFromTab("Root.Main","SortOrder");
$fields->addFieldsToTab("Root.Main", $this->getMyColumnOptions());
return $fields;
}
public function getMyColumnOptions()
{
$columnArray = [];
$Columns = DataObject::get('TableColumnSet');
foreach($Columns as $Column){
$columnArray[] = TextField::create($Column->TableColumnHeader);
}
return $columnArray;
}
// Tell the datagrid what fields to show in the table
private static $summary_fields = array(
);
public function canEdit() {
return true;
}
public function canDelete() {
return true;
}
public function canCreate(){
return true;
}
public function canPublish(){
return true;
}
public function canView(){
return true;
}
}
但这些是棘手的部分:弄清楚如何将值从一个DataObject映射到另一个DataObject的标签,然后根据已创建的列数自动生成第n行。
<?php
class TablePage extends Page
{
private static $db = array(
'H1' => 'varchar(250)',
);
private static $has_many = array(
'TableRowItems' => 'TableRowItem',
'TableColumnSets' => 'TableColumnSet'
);
private static $has_one = array(
);
public function getCMSFields()
{
$fields = parent::getCMSFields();
$fields->addFieldToTab("Root.Main", new TextField("H1"), "Content");
$gridFieldConfig = GridFieldConfig_RecordEditor::create();
$gridFieldConfig->getComponentByType('GridFieldDataColumns')->setDisplayFields(array(
// field from drawer class => label in UI
'TableColumnHeader' => 'Table Column Header'
));
$gridfield = new GridField(
"TableColumnSets",
"Table Column Sets",
$this->TableColumnSets(),
$gridFieldConfig
);
$fields->addFieldToTab('Root.Specs Table', $gridfield);
$gridFieldConfig2 = GridFieldConfig_RecordEditor::create();
$gridFieldConfig2->getComponentByType('GridFieldDataColumns')->setDisplayFields(array(
// field from drawer class => label in UI
'TableRowValue' => 'Table Row Value'
));
$gridfield2 = new GridField(
"TableRowItems",
"Table Row Items",
$this->TableRowItems(),
$gridFieldConfig2
);
$fields->addFieldToTab('Root.Specs Table', $gridfield2);
return $fields;
}
}
class TablePage_Controller extends Page_Controller
{
private static $allowed_actions = array(
);
public function init()
{
parent::init();
// You can include any CSS or JS required by your project here.
// See: http://doc.silverstripe.org/framework/en/reference/requirements
}
}
以下是TableColumnSet和TableRowValue类。我想,会有一组列标题与第n行相关联,所以我认为这两个类之间会有一个$has_many
关系,因为TableColumnSet可能有很多TableRowValues,但只有是所有TableRowValues的一个TableColumnSet。我希望使用带有所有列标题的下拉列表将TableRowValues与TableColumnSet值相关联,但这听起来不错。必须手动将一行中的每个字段与列标题相关联,这似乎是单调且可能很困难的内容管理器。
<?php
class TableColumnSet extends DataObject {
private static $db = array(
'SortOrder' => 'Int',
'TableColumnHeader'=>'varchar(250)'
);
// One-to-one relationship with gallery page
private static $has_one = array(
'TablePage'=> 'Page'
);
private static $has_many = array(
'TableRowItems' => 'TableRowItem'
);
// tidy up the CMS by not showing these fields
public function getCMSFields() {
$fields = parent::getCMSFields();
$fields->removeFieldFromTab("Root.Main","TablePageID");
$fields->removeFieldFromTab("Root.Main","SortOrder");
return $fields;
}
// Tell the datagrid what fields to show in the table
private static $summary_fields = array(
'TableColumnHeader' => 'Table Column Header',
);
public function canEdit() {
return true;
}
public function canDelete() {
return true;
}
public function canCreate(){
return true;
}
public function canPublish(){
return true;
}
public function canView(){
return true;
}
}
我觉得可能会在这里找到一些东西,至少在列标题和行之间的关系方面?不过我不确定。
答案 0 :(得分:-1)
我可能不在这里,因为我没有使用SilverStripe的经验。但是......我的PHP / HTML表解决方案可能适用于此处:
<?php
// parse your table data into this structure
$tableData = array(
"rowOne" => array(
"columnName" => "columnValue1",
"colName" => "colValue1"
// .....
),
"rowTwo" => array(
"columnName" => "columnValue2",
"colName" => "colValue2"
// .....
)
);
// now loop through the array with a printHeader parameter
$tableHTML = array(
"<table>"
);
$tableHead = array(
"<thead>"
);
$tableBody = array(
"<tbody>"
);
$printHeader = true;
foreach ($tableData as $row) {
foreach ($row as $column => $value) {
$tableRow = "<tr>";
if ($printHeader) {
$tableHead[] = "<th>".$column."</th>";
}
$tableRow .= "<td>".$value."</td>";
}
$tableBody[] = $tableRow."</tr>";
// after the first row, set printHeader to false and close the <thead>
$printHeader = false;
$tableHead[] = "</thead>";
}
// implode table header to string with linebreaks
$tableHead = implode(PHP_EOL, $tableHead);
// close table <tbody> & implode to string with linebreaks
$tableBody[] = "</tbody>";
$tableBody = implode(PHP_EOL, $tableBody);
// add all table elements together
$tableHTML[] = $tableHead;
$tableHTML[] = $tableBody;
$tableHTML[] = "</table>";
// implode table array to string
$tableHTML = implode(PHP_EOL, $tableHTML);
// print or write anywhere
echo($tableHTML);
?>
循环中所有步骤的数组结构是使默认服务器内存更清晰,以删除旧数据。如果将所有引用连接($var .= "string";
)作为字符串,则所有引用都将保留在内存中,并在显示大表时陷入服务器。
我希望这有一些帮助