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| * '''file''': {{l/version|file|page/page.php}} | | * '''file''': {{l/version|file|page/page.php}} |
| * '''extends''': {{l/version|class|fcpeSimple}} | | * '''extends''': {{l/version|class|fcpeSimple}} |
| | * '''uses''': |
| | ** {{l/version|class|ftExecutableTree}} |
| | ** {{l/version|class|ftRenderableTree}} |
| * '''extended by''': | | * '''extended by''': |
| ** {{l/version|class|gcPageContent|project=Greenmine|version=v1}} | | ** {{l/version|class|gcPageContent|project=Greenmine|version=v1}} |
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| ==Calls== | | ==Calls== |
| * <s>{{l/version/method|fcPageContent|AddString}}($s)</s> is redundant; call {{l/version/method|fcTreeNode|AddText}}($s) instead | | * <s>{{l/version/method|fcPageContent|AddString}}($s)</s> is redundant; call {{l/version/method|fcTreeNode|AddText}}($s) instead |
| ==Code==
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| <source lang=php>
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| abstract class fcPageContent extends fcpeSimple {
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| use ftExecutableTree, ftRenderableTree;
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|
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| // ++ RECORDS ++ //
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|
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| protected function GetSessionRecord() {
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| return fcApp::Me()->GetSessionRecord();
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| }
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|
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| // -- RECORDS -- //
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| // ++ THRUPUT ++ //
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|
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| /*----
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| PURPOSE: Adds a string to the main content.
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| If the page is redirected before rendering, the content will be saved with the Session record
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| and displayed after the redirect.
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| */
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| protected function AddString($s) {
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| $sSaved = $this->GetValue();
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| $sSaved .= $s;
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| $this->SetValue($sSaved);
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| }
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|
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| // -- THRUPUT -- //
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| // ++ OUTPUT ++ //
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|
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| /*----
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| NOTE: We shouldn't ever need to have RenderBefore()/RenderAfter() methods here.
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| The only time this has come up so far, it turned out they belong in the page header.
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| If we want to wrap the content in, say, <span> tags, then add a tag element node.
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| */
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| public function Render() {
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|
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| return
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| $this->RenderStashed()
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| .$this->RenderNodes()
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| .$this->GetValue()
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| ;
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| }
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| // PURPOSE: Render any content that was stashed for a redirect (typically result-status messages)
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| protected function RenderStashed() {
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| $rcSess = $this->GetSessionRecord();
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| $out = $rcSess->PullStashValue('page contents');
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| // 2017-05-25 At this point, I totally don't get why this is being called here:
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| //$rcSess->Save(); maybe it should actually LOAD the data?
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| return $out;
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| }
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| /*----
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| ACTION: Save anything which should be preserved across a redirect, and then do the redirect.
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| PUBLIC so linkable objects can redirect without losing content
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| NEW
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| HISTORY:
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| 2017-05-25 I previously did $rcSess->Save() after $rcSess->SetStashValue(), but this has proven to be
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| awkward since we don't have storage objects (at this level) to do the translation. I'm hoping this
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| is unnecessary in the short term; in the long term, it looks like we need a way to have storage objects
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| without a form.
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| */
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| public function DoStashedRedirect($url) {
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| // save the current page contents for redisplay after redirect
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| $s = $this->GetValue(); // get content that won't be displayed because we're redirecting
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| $rcSess = $this->GetSessionRecord();
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| $rcSess->SetStashValue('page contents',$s);
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| //fcApp::Me()->ThrowCookies();
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| //$rcSess->Save(); // write to persistent storage
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|
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| // now actually redirect
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| fcHTTP::Redirect($url);
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| die(); // stop doing stuff; we're redirecting
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| }
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| /*----
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| ACTION: Redirect the browser to the same page (path only; no domain, ?query, or #fragment)
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| PUBLIC so widgets (so far, just the login widget) can call it
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| HISTORY:
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| 2017-02-04 written as a companion to RedirectToDefaultPage()
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| */
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| public function RedirectToSamePage() {
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| $url = fcURL::GetCurrentString();
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| $this->DoStashedRedirect($url);
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| }
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| /*----
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| ACTION: Redirect the browser to a sensible default URL (currently the base page).
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| Later we might try to figure out where we were before, and go back there.
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| PUBLIC so widgets (so far, just the login widget) can call it
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| HISTORY:
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| 2016-12-25 moved here from the login widget, because this is the content we want to save
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| 2017-02-04 renamed from RedirectToEraseRequest() -> RedirectToDefaultPage()
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| */
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| public function RedirectToDefaultPage() {
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| $url = fcApp::Me()->GetKioskObject()->GetBasePath(); // until we can come up with something more fine-tuned
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| $this->DoStashedRedirect($url);
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| }
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| }</source>
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