I'm using this http://www.xpathtester.com/xpath/5a30592045b6aa5089faf909261ede0b XPath tester, which returns exactly what I want. For some reason it removes my full query, but if you use it, it works.
*/h3[contains(string(), "Description")]/following-sibling::p[1]
But in real life, I get nothing from my variable.
I'm trying to get the data after <h3>Description</h3>, in this case a paragraph <p>.
HTML
$feed_item=
<div class="outer-feed"><ul>
<li><strong>Severity:</strong> <span class="label label-info">Low</span></li>
</ul>
<h3>Description</h3>
<p>The lack of validation of configuration parameters used in SQL queries caused various SQL injection vectors.</p>
...
Here's my XPath
$description_node = $xpath->query('*/h3[contains(string(), "Description")]/following-sibling::p[1]', $feed_item);
$description = "description: " . $description_node->item(0)->textContent;
and var_dump
object(DOMNodeList)#1654 (1) { ["length"]=> int(0) }
And the error
Notice
: Trying to get property 'textContent' of non-object in
What confuses me is that I can get Severity from the same HTML by using this:
$severity_node = $xpath->query('*/li[contains(string(), "Severity:")]', $feed_item);
$severity = preg_replace('/Severity:\W*/u', '', $severity_node->item(0)->textContent);
My first thought was to scale back to just the H3 and output that.
$description_node = $xpath->query('*/h3[contains(string(), "Description")]', $feed_item);
object(DOMNodeList)#1654 (1) { ["length"]=> int(0) } // doesn't contain anything
Given that the following are identical but the first works and the second doesn't, what could be the problem?
$severity_node = $xpath->query('*/li[contains(string(), "Severity:")]', $feed_item);
$description_node = $xpath->query('*/h3[contains(string(), "Description")]', $feed_item);
Why is one working and not the other. And what is the best way to troubleshoot things like this. It seems to work on the xpathtester. What could I be doing wrong that causes this problem in PHP?
Try with this XPath:
//h3[text()="Description"]/following::p[1]
A query starting */h3[...] will only work if the context item when it is invoked is the grandparent of the h3 element. You've given no information about the context item, so I suspect it is something different.
You ask the question(s): "Why is one working and not the other. And what is the best way to troubleshoot things like this. It seems to work on the xpathtester. What could I be doing wrong that causes this problem in PHP?"
Well, the first thing is to understand that XPath expressions may depend on the context item, and that the same expression evaluated with different context items is going to give different results. Once you understand that concept, it hopefully becomes a lot clearer.
Related
I have a statement like "Animal Association" from the database. I want to get its short form. It means, only the first letter of each word like this "AA". In the blade file, I got the whole statement as follows,
<p>{{ $animal->user->club->name}}</p>
So, how can I get a short form of this name?
Thank You!
If you are using MySQL 8+, then a raw select with REGEXP_REPLACE should work here:
$users = DB::table('animals')
->select(DB::raw("SELECT REGEXP_REPLACE(name, '(\\w)\\w+\\s*', '$1')"))
->get();
This very common problem where we ran into, I can provide you a function that will solve your problem. I am sharing two solutions and you can use any of these solutions.
using function
You can use this function in your model and solve your problem.
public function getNameAbbreviate($string){
$abbreviation = "";
$string = ucwords($string);
$words = explode(" ", "$string");
foreach($words as $word){
$abbreviation .= $word[0];
}
return $abbreviation;
}
There is probably no one-line solution, the solution which I provided is readable and understandable.
using regex
This solution is easy to apply and in case you can't make the first method work then go with this.
<p>{{ preg_split("/\s+/", $animal->user->club->name) }}</p>
using regex we can get a direct solution but I personally don't like it or recommend it.
I am trying to select an incorrect answer (radio button) to get an error message to appear, but the answers are random (except the correct answer).
How can I say get the radio buttons, and then click one that does not equal "correct answer" using cypress assertions?
cy.get('[data-cy="multipleChoiceQuestionAnswer"]')
.should('not.contain', 'correct answer')//.find('label').not('corect answer')//.not.includes('correct answer')
.click()
I would like to be able to select one of the two radio buttons for the incorrect answers, right now I can only select the correct answer.
well:
be aware that .should('not.contain', 'correct answer') is an assertion, is not a way to filter/get some elements.
It's, essentially, just a way to check (aka "assert") that something is like you expect it to be.
An assertion like yours is useful just to get the Cypress log print something like this
Read it like if you are telling
"Ehy Cypress, I selected an element, could you check that it doesn't contain the correct answer, please?"
What are assertions useful for? They aren't useful when everything goes right but when the test goes wrong.
Because without assertions, you can find yourself behind a broken test with Cypress telling you that "there isn't the element" but you can't know which element Cypress isn't finding.
Placing some "key point" assertions allows you to understand why a test failed in short time.
Anyway: if your HTML is something like this
<div data-cy="multipleChoiceQuestionAnswer"><label>correct answer<input type="checkbox"/></label></div>
<div data-cy="multipleChoiceQuestionAnswer"><label>no<input type="checkbox"/></label></div>
<div data-cy="multipleChoiceQuestionAnswer"><label>nope<input type="checkbox"/></label></div>
you can accomplish your goal making:
cy.get('[data-cy="multipleChoiceQuestionAnswer"]').then(els => {
// `els` is a jQuery instance, let's parse the various elements
let $el;
for(let i = 0, n = els.length; i < n; i++) {
// it transforms every element in a jQuery instance
$el = Cypress.$(els[i]);
// it uses jQuery to get the label text
if($el.find("label").text() !== "correct answer") {
// it stops as soon as the answer isn't the correct one
break;
}
}
// returns the element to be clicked
return $el.find("input");
})
// it assert about it (to have a useful hint in the Cypress command log)
.should("not.contain", "correct answer")
// clicks it
.click();
I hope the code is self-explanatory (in case it isn't, ask me some more clarifications) 😊
I have an element like
<td class="google-visualization-table-th gradient google-visualization-table-sorthdr">
Project Name
<span class="google-visualization-table-sortind">â–¼</span>
</td>
I tried
driver.findElement(By.xpath("//td[contains(#class, 'google-visualization-table-th') and normalize-space(text()) = 'Project Name']")
But its not working. Basically its code for Column header and I need to recognize each column header and print if the heading exist or not.
We do not know which version of XPath you are using, but depending on the exact version, text() means different things.
I suspect that the text content of span(the weird character â–¼) is also part of td/text(). This is because text() does not mean:
Return the rext nodes of the context node
In this case it means:
Return the text nodes of the context node and the text nodes of all its decendants.
Use contains() also in the second half of the predicate:
//td[contains(#class, 'google-visualization-table-th') and contains(.,'Project Name')]
Its resolved now, element was not getting identified because they were getting loaded in an iframe. I used the below code o switch to iframe and then did usual operations to track the elements.
WebDriverWait wait = new WebDriverWait(driver, 200);
By by = By.id("iframe id");
try {
wait.until(ExpectedConditions.frameToBeAvailableAndSwitchToIt(by));
Thanks everyone for the help.
I use a RESTAdapter model to fill a Ember's select view with options.
The contentBinding is mapped the a property in the controller, where I use this.set('myProperty', model.find(someQuery)).
model.find(someQuery) with 1 result works perfect, but model.find(someQuery) with many results have a weird effect. The last object from the result is showed as many times as the length of the result.
{{view Ember.Select contentBinding="myProperty" optionValuePath="content.id"
optionLabelPath="content.name"
selectionBinding="selectedResult"
prompt=" "}}
Interesting. At first glance the code you included in your question looks fine. To debug:
1) Check to be sure the query results are what you expect.
content = model.find(someQuery); //with many results
// wait for results...
console.log(content.getEach('id')); //expect array of ids
console.log(content.getEach('name')); //expect array of names
2) examine contents of myProperty - from template:
{{#each myProperty}}
<pre>{{id}}.{{name}}</pre>
{{/each}}
Expect template to output id/name for each option.
My problem is the following :
I usually have those data:
<structures>
<structure id="10">
<code>XXX</code>
</structure>
</structures>
so the table I display (single columns : code) is ok.
But in some cases, the data is the result a a query with no content, so the data is:
<structures/>
resulting in my table not displaying + error.
I am trying to insert, in the case of an empty instance, a single node so that the data would look like:
<structures>
<structure id="0"/>
</structures>
I am trying something like that :
<xforms:action ev:event="xforms-submit-done">
<xforms:insert if="0 = count(instance('{./instance-name}')/root/node())" context="instance('{./instance-name}')/root/node()" origin="xforms:element('structure', '')" />
</xforms:action>
but no node inserted when I look at the data in the inspector in the page.
Any obvious thing I am doing wrong?
There seems to be erros in your XPath if and context expressions:
if="0 = count(instance('{./instance-name}')/root/node())"
context="instance('{./instance-name}')/root/node()"
You are a using curly brackets { and }, I assume to have the behavior of attribute value templates (AVTs). But the if and context expressions are already XPath expressions, so you cannot use AVTs in them. Try instead:
if="0 = count(instance(instance-name)/root/node())"
context="instance(instance-name)/root/node()"
Also, the instance-name path is relative to something which might not be clear when reading or writing the expression. I would suggest using an absolute path for example instance('foo')/instance-name to make things clearer.
You don't provide the structure of the other instances, so I can tell for sure, but you'll expression above suppose that they have the form:
<xf:instance id="foo">
<some-root-element>
<root>
<structure/>
</root>
<some-root-element>
</xf:instance>
I don't know if that's what you intend.
Finally, you could replace count(something) = 0, with empty(something).