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Diffstat (limited to 'demos/quickstart/protected/pages')
| -rw-r--r-- | demos/quickstart/protected/pages/Database/ViewsArUpdate.page | 40 |
1 files changed, 34 insertions, 6 deletions
diff --git a/demos/quickstart/protected/pages/Database/ViewsArUpdate.page b/demos/quickstart/protected/pages/Database/ViewsArUpdate.page index a2f7ff68..5dd084c4 100644 --- a/demos/quickstart/protected/pages/Database/ViewsArUpdate.page +++ b/demos/quickstart/protected/pages/Database/ViewsArUpdate.page @@ -2,18 +2,44 @@ <h1 id="138046">Views - AR Classes Update</h1> <com:SinceVersion Version="4.0" /> <p class="block-content"> - Usually when have <tt>Active Records Classes</tt> - there are correspondingly the proper views to handle them. + Usually when you use <tt>Active Records Classes</tt> to interact with your Data Base + you also build some proper views to handle them. To save every element of your views in your Data Base + you need first to assign everyone of them to their corresponding attribute in one of your AR Classes. + This task is really tedious and usually takes a significant amount of your time. + Thats why Prado offers an automatic mechanism to update your views from your AR Classes and vice versa. </p> +<h2>Updating views from AR Classes</h2> + +<p>Instead of assign each attribute in your AR Class to your view controls like this:</p> +<com:TTextHighlighter CssClass="source block-content"> +$student = AR_Student::finder()->findByPk(1); +$this->name->Text = $student->name; +$this->age->Text = $student->age; +$this->gender->Text = $student->gender; +$this->average->Text = $student->average; +</com:TTextHighlighter> + +<p>You can do the same as follows:</p> + <com:TTextHighlighter CssClass="source block-content"> $student = AR_Student::finder()->findByPk(1); $this->tryToUpdateView($student); </com:TTextHighlighter> -<p class="block-content"> - Also you can do the reverse operation. -</p> + +<h2>Updating AR Classes from views</h2> +<p>Instead of assign each attribute in your views to your AR Classes like this:</p> +<com:TTextHighlighter CssClass="source block-content"> +$student = new AR_Student(); +$student->name = $this->name->Text; +$student->age = $this->age->Text; +$student->gender = $this->gender->Text; +$student->average = $this->average->Text; +$student->save(); +</com:TTextHighlighter> + +<p>You can do the same as follows:</p> <com:TTextHighlighter CssClass="source block-content"> $student = new AR_Student(); @@ -21,8 +47,10 @@ $this->tryToUpdateAR($student); $student->save(); </com:TTextHighlighter> + <div class="info"><b class="note">Info:</b> - When an AR class attribute does not match any of the controls IDs on the view, nothing will happen + Note that the identifiers of your controls should be exactly the same of the attributes of your + AR Classes... otherwise nothing will happen. </div> </com:TContent>
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