An strange problem occourse on grails 1.2.4 on my machine only....
We are using an custom taglib which can be accessed from services via gspTagLibraryLookup-bean from AppContext.
On my local machine
<my:span value="abc" title="${my.write(text:'123')}"/>
writes:
123<span title="">abc</span> <!-- what i see -->
<span title="123">abc</span> <!-- what my collegue see -->
my:write is defied as:
def write = {out << attrs.text}
But: If i use return instead of out, the html generate what my collegue see.
Anyone know the difference?
Argument value for the title attribute is evaluated before passing it to <my:span>. So if you define write as {out << attrs.text}, and use it in <my:span>, the write function will write to out before span function does, and return nothing - so 123 will be written to output before <span>, and the title attribute will be empty.
If you define write as {return attrs.text}, its evaluation won't write anything to out, and return 123 which will be inserted as value of title attribute.
Not sure why the first definition works on your collegue's machine.
Related
I am told to do not define variables in template, instead define them in a partial and then retrieve them.
Let's say my _examplePartial.php looks like:
`<?php
$partial_a = 1;
$partial_b = 2;
echo "exapmlePartial is included correctly!";
?>`
Now I need to save value of $partial_a in $template_a in my template code.
By following code I see that exapmlePartial is included correctly, but I don't have access to $partial_a:
`include_partial('exampePartial');
`
Does anyone know how to get value of $partial_a?
Thanks.
I've stored a string in the database. When I save and retrieve the string and the result I'm getting is as following:
This is my new object
Testing multiple lines
-- Test 1
-- Test 2
-- Test 3
That is what I get from a println command when I call the save and index methods.
But when I show it on screen. It's being shown like:
This is my object Testing multiple lines -- Test 1 -- Test 2 -- Test 3
Already tried to show it like the following:
${adviceInstance.advice?.encodeAsHTML()}
But still the same thing.
Do I need to replace \n to or something like that? Is there any easier way to show it properly?
Common problems have a variety of solutions
1> could be you that you replace \n with <br>
so either in your controller/service or if you like in gsp:
${adviceInstance.advice?.replace('\n','<br>')}
2> display the content in a read-only textarea
<g:textArea name="something" readonly="true">
${adviceInstance.advice}
</g:textArea>
3> Use the <pre> tag
<pre>
${adviceInstance.advice}
</pre>
4> Use css white-space http://www.w3schools.com/cssref/pr_text_white-space.asp:
<div class="space">
</div>
//css code:
.space {
white-space:pre
}
Also make a note if you have a strict configuration for the storage of such fields that when you submit it via a form, there are additional elements I didn't delve into what it actually was, it may have actually be the return carriages or \r, anyhow explained in comments below. About the good rule to set a setter that trims the element each time it is received. i.e.:
Class Advice {
String advice
static constraints = {
advice(nullable:false, minSize:1, maxSize:255)
}
/*
* In this scenario with a a maxSize value, ensure you
* set your own setter to trim any hidden \r
* that may be posted back as part of the form request
* by end user. Trust me I got to know the hard way.
*/
void setAdvice(String adv) {
advice=adv.trim()
}
}
${raw(adviceInstance.advice?.encodeAsHTML().replace("\n", "<br>"))}
This is how i solve the problem.
Firstly make sure the string contains \n to denote line break.
For example :
String test = "This is first line. \n This is second line";
Then in gsp page use:
${raw(test?.replace("\n", "<br>"))}
The output will be as:
This is first line.
This is second line.
Just new in Prestashop (1.6.0.6), I've a problem with my product page in admin. All translatable-field are to display:none (I inspect the code with chrome).
So when I want to create a new product I can't because the name field is required.
I thought that it was simple to find the .js whose do that but it isn't.
If somebody could help me, I would be happy.
Thank you for your help
Hi,
I make some searches and see that the function hideOtherLanguage(id) hide and show translatable-field element.
function hideOtherLanguage(id)
{
console.log(id_language);
$('.translatable-field').hide();
$('.lang-' + id).show();
var id_old_language = id_language;
id_language = id;
if (id_old_language != id)
changeEmployeeLanguage();
updateCurrentText();
}
When I set the Id to 1 (default language), it works. It seems that when I load the page, the function is called twice and the last calling, the id value is undefined. So the show() function will not work.
If somebody could help me. Thank you.
In my console, I see only one error
undefined is not a function.
under index.php / Line 1002
...
$("#product_form").validate({
...
But I find the form.tpl template and set this lines in comment but nothing change.
EDIT: According to comment on this link http://forge.prestashop.com/browse/PSCFV-2928 this can possibly be caused by corrupted installation file(s) - so when on clean install - try to re-download and reinstall...
...otherwise:
I got into a similar problem - in module admin page, when creating configuration form using PrestaShop's HelperForm. I will provide most probable cases and their possible solutions.
The solution for HelperForm was tested on PS 1.6.0.14
Generally there are 2 cases when this will happen.
First, you have to check what html you recieve.
=> Display source code - NOT in developer tools/firebug/etc...!
=> I really mean the pure recieved (JavaScript untouched) html.
Check if your translatable-fields have already the inline style "display: none":
Case 1 - fields already have inline style(s) for "display: none"
This means the template/html was already prepared this way - most probably in some TPL file I saw codes similar to these:
<div class="translatable-field lang-{$language.id_lang}"
{if $language.id_lang != $id_lang_default}style="display:none"{/if}>
Or particularly in HelperForm template:
<div class="translatable-field lang-{$language.id_lang}"
{if $language.id_lang != $defaultFormLanguage}style="display:none"{/if}>
Case 1 is the most easy to solve, you just have to find, where to set this default language.
Solutions
HelperForm
Look where you've (or someone else) prepared the HelperForm object - something like:
$formHelper = new HelperForm();
...
Somewhere there will be something like $formHelper->default_form_language = ...;
My wrong first solution was to get default form language from context - which might not be set:
$this->context->controller->default_form_language; //THIS IS WRONG!
The correct way is to get the default language from configuration - something like:
$default_lang = new Language((int)Configuration::get('PS_LANG_DEFAULT'));
$formHelper->default_form_language = $default_lang->id;
...this particularly solved my problem...
Other form-creations
If there is something else than HelperForm used for form creations, the problem is still very similar.
You have to find where in files(probably tpls) is a condition for printing display:none for your case - then find where is the check-against-variable set and set it correctly yourself.
Case 2 - fields don't have inline style(s) for "display: none"
This means it is done after loading HTML by JavaScript. There are two options:
There is a call for hideOtherLanguage(), but there is wrongly set input language - that means no language will be displayed and all hidden.Solution for this one can be often solved by solving Case 1 (see above). In addition there can be programming error in not setting the after-used language id variable at all... then you would have to set it yourself (assign in JavaScript).
Some script calls some sort of .hide() on .translatable-field - you will have to search for it the hard way and remove/comment it out.
PS: Of course you can set the language to whatever you want, it is just common to set it to default language, because it is the most easier and the most clear way how to set it.
I am learning grails using the definitive guide to grails 2 (using grails 2.3.7), and when I'm looking at the custom tag library it gives an example custom tag as follows:
def repeat = { attrs, body ->
int n = attrs.int('times)
n?.times { counter ->
out << body(counter +1)
}
}
so when I use this tag like so:
<g:repeat times="3">
Hello number ${it}<br>
</g:repeat>
I expect to get three separate lines on my rendered HTML:
Hello number 1
Hello number 2
Hello number 3
Instead I get:
hello number 1<br>hello number 2<br>hello number 3<br>
I have found methods that look like they should help, like decodeHTML() however I am thus unable to change the output that I want, and I'm not sure what I'm doing wrong.
I have tried doing:
out <<body.decodeHTML()
but I get a null pointer error...
That does not make sense unless there is something else in your taglib or something unusual in the GSP which is invoking the tag.
Does your taglib maybe have something like defaultEncodeAs='html' in it?
Use the tag like this:
<g:repeat times="3">
Hello number ${it}<br/>
</g:repeat>
HTML5 can render <br>, but it seems you are using version 4 or lower.
i am learning asp.net mvc just going through online tutorial
1) just see <span>#model.Message</span> and #Html.Raw(model.Message)
suppose if "Hello Word" is stored in Message then "Hello Word" should display if i write statement like
<span>#model.Message</span> but i just could not understand what is the special purpose about #Html.Raw(model.Message).
what #Html.Raw() will render ?
please discuss with few more example to understand the difference well.
2) just see the below two snippet
#if (foo) {
<text>Plain Text</text>
}
#if (foo) {
#:Plain Text is #bar
}
in which version of html the tag called was introduce. is it equivalent to or what ? what is the purpose of
this tag ?
just tell me about this #:Plain Text is #bar
what is the special meaning of #: ?
if our intention is to mixing text with expression then can't we write like Plain Text is #bar
3) <span>ISBN#(isbnNumber)</span>
what it will print ? if 2000 is stored in isbnNumber variable then it may print <span>ISBN2000</span>. am i right ?
so tell me what is the special meaning of #(variable-name) why bracket along with # symbol ?
4) just see
<span>In Razor, you use the
##foo to display the value
of foo</span>
if foo has value called god then what this ##foo will print ?
5 ) see this and guide me about few more syntax given below point wise
a) #(MyClass.MyMethod<AType>())
b)
#{
Func<dynamic, object> b =
#<strong>#item</strong>;
}
#b("Bold this")
c) <div class="#className foo bar"></div>
6) see this
#functions
{
string SayWithFunction(string message)
{
return message;
}
}
#helper SayWithHelper(string message)
{
Text: #message
}
#SayWithFunction("Hello, world!")
#SayWithHelper("Hello, world!")
what they are trying to declare ? function ?
what kind of syntax it is ?
it seems that two function has been declare in two different way ? please explain this points with more sample. thanks
Few More question
7)
#{
Func<dynamic, object> b = #<strong>#item</strong>;
}
<span>This sentence is #b("In Bold").</span>
what the meaning of above line ? is it anonymous delegate?
when some one will call #b("In Bold") then what will happen ?
8)
#{
var items = new[] { "one", "two", "three" };
}
<ul>
#items.List(#<li>#item</li>)
</ul>
tell me something about List() function and from where the item variable come ?
9)
#{
var comics = new[] {
new ComicBook {Title = "Groo", Publisher = "Dark Horse Comics"},
new ComicBook {Title = "Spiderman", Publisher = "Marvel"}
};
}
<table>
#comics.List(
#<tr>
<td>#item.Title</td>
<td>#item.Publisher</td>
</tr>)
</table>
please explain briefly the above code. thanks
1) Any kind of #Variable output makes MVC automatically encode the value. That is to say if foo = "Joe & Dave", then #foo becomes Joe & Dave automatically. To escape this behavior you have #Html.Raw.
2) <text></text> is there to help you when the parser is having trouble. You have to keep in mind Razor goes in and out of HTML/Code using the semantics of the languages. that is to say, it knows it's in HTML using the XML parser, and when it's in C#/VB by its syntax (like braces or Then..End respectively). When you want to stray from this format, you can use <text>. e.g.
<ul>
<li>
#foreach (var item in items) {
#item.Description
<text></li><li></text>
}
</li>
</ul>
Here you're messing with the parser because it no longer conforms to "standard" HTML blocks. The </li> would through razor for a loop, but because it's wrapped in <text></text> it has a more definitive way of knowing where code ends and HTML begins.
3) Yes, the parenthesis are there to help give the parser an explicit definition of what should be executed. Razor makes its best attempt to understand what you're trying to output, but sometimes it's off. The parenthesis solve this. e.g.
#Foo.bar
If you only had #Foo defined as a string, Razor would inevitably try to look for a bar property because it follows C#'s naming convention (this would be a very valid notation in C#, but not our intent). So, to avoid it from continuing on we can use parenthesis:
#(Foo).bar
A notable exception to this is when there is a single trailing period. e.g.
Hello, #name.
The Razor parser realizes nothing valid (in terms of the language) follows, so it just outputs name and a period thereafter.
4) ## is the escape method for razor when you need to actually print #. So, in your example, you'd see #foo on the page in plain text. This is useful when outputting email addresses directly on the page, e.g.
bchristie##contoso.com
Now razor won't look for a contoso.com variable.
5) You're seeing various shortcuts and usages of how you bounce between valid C# code and HTML. Remember that you can go between, and the HTML you're seeing is really just a compiled IHtmlString that is finally output to the buffer.
1.
By default, Razor automatically html-encodes your output values (<div> becomes <div>). #Html.Raw should be used when you explicitly want to output the value as-is without any encoding (very common for outputting JSON strings in the middle of a <script>).
2.
The purpose of <text> and #: is to escape the regular Razor syntax flow and output literal text values. for example:
// i just want to print "Haz It" if some condition is true
#if (Model.HasSomething) { Haz It } // syntax error
#if (Model.HasSomething) { <text>Haz It</text> } // just fine
As of #:, it begins a text literal until the next line-feed (enter), so:
#if (Model.HasSomething) { #:Haz It } // syntax error, no closing '}' encountered
// just fine
#if (Model.HasSomething)
{
#:Haz It
}
3.
By default, if your # is inside a quote/double-quotes (<tr id="row#item.Id"), Razor interprets it as a literal and will not try to parse it as expression (for obvious reasons), but sometimes you do want it to, then you simply write <tr id="row#(item.Id").
4.
The purpose of ## is simply to escape '#'. when you want to output '#' and don't want Razor to interpret is as an expression. then in your case ##foo would print '#foo'.
5.
a. #(MyClass.MyMethod<AType>()) would simply output the return value of the method (using ToString() if necessary).
b. Yes, Razor does let you define some kind of inline functions, but usually you better use Html Helpers / Functions / DisplayTemplates (as follows).
c. See above.
6.
As of Razor Helpers, see http://weblogs.asp.net/scottgu/archive/2011/05/12/asp-net-mvc-3-and-the-helper-syntax-within-razor.aspx