I am looking for a way to do logical OR between two {#eq} conditionals. Can I do it in some straightforward way?
For illustration, consider example below. I am iterating over result array. If grp argument is equal to all, I don't want to filter what goes to the page. If it is not equal to all, then I want to filter the array elements by group property being equal to grp. The condition would be expressed as (grp == "all" || group == grp) in JS. Currently, without any way to do OR between the two conditions, I have to repeat the BODY of the loop -- going against the DRY principle.
{#result grp=grp}
{#eq key=grp value="all"}
BODY
{:else}
{#eq key=group value=grp}
BODY
{/eq}
{/eq}
{/result}
The special {#any} helper allows you to express logical OR. (There is also a {#none} helper for logical NAND.)
{#result grp=grp}
{#select}
{#eq key=grp value="all"/}
{#eq key=group value=grp/}
{#any}BODY{/any}
{/select}
{/result}
If you need to do something more complex than that-- for example, if BODY is dependent on the value of grp and group-- you can always write a custom Dust helper to move your logic into Javascript. Here's a short example of what that would look like, and you can read further in the documentation on context helpers.
{
"filter": function(chunk, context, bodies, params) {
var group = context.resolve(params.group);
var grp = context.resolve(params.grp);
if (grp == "all" || group == grp) {
chunk = chunk.render(bodies.block, context.push({
somethingNewBasedOff: "the value of group and grp"
}));
}
return chunk;
}
}
And then you'd use it like:
{#result grp=grp}
{#filter group=group grp=grp}
The filter test passed. The new data I added to the context is {somethingNewBasedOff}
{/filter}
{/result}
Related
I read and try a lots of things just to add a field witch is in relation.
One Dance have a level (beginner, improver...) and one Level have a Style (Country music, disco...). So for a dance I can get the level and associate style. Dance is MTO with Level, and Level is MTO with Style. It work fine in traditionnel controller and in Dance Index twig I can do
{{ dance.level.style }}
It's work fine.
Impossible for me to do that in EasyAdmin: In Danse Crud Controller
yield AssociationField::new('level');
is naturally working fine but how adding the style name? I'm not familiar with Queribuilder if it's the solution. I read Symfony Documentation easyadmin about unmapped fields but I don't undestand "createIndexQueryBuilder" parameters. If you can help me to progress. Thank's in advance
I don't find examples in stack with Easyadmin 4. And (I'm sorry), documentation is not very clear for me.
Example:
class UserCrudController extends AbstractCrudController
{
// ...
public function configureFields(string $pageName): iterable
{
return [
TextField::new('fullName'),
// ...
];
}
public function createIndexQueryBuilder(SearchDto $searchDto, EntityDto $entityDto, FieldCollection $fields, FilterCollection $filters): QueryBuilder
{
$queryBuilder = parent::createIndexQueryBuilder($searchDto, $entityDto, $fields, $filters);
// if user defined sort is not set
if (0 === count($searchDto->getSort())) {
$queryBuilder
->addSelect('CONCAT(entity.first_name, \' \', entity.last_name) AS HIDDEN full_name')
->addOrderBy('full_name', 'DESC');
}
return $queryBuilder;
}
}
Why we have "entity.first_name" (why entity word and not entityDto...). dump parameters don't give me persuasive results
Easy finally.
You can choice the field you want to be rendered. Basically add __toString in Entity.
In my case just add for a many to many relation:
AssociationField::new('dances')
->setFormTypeOption('choice_label','level.style'),
I have a question about the query based on the predefined constraints in PopotoJs. In this example, the graph can be filtered based on the constraints defined in the search boxes. The sample file in this example visualizations folder, constraint is only defined for "Person" node. It is specified in the sample html file like the following:
"Person": {
"returnAttributes": ["name", "born"],
"constraintAttribute": "name",
// Return a predefined constraint that can be edited in the page.
"getPredefinedConstraints": function (node) {
return personPredefinedConstraints;
},
....
In my graph I would like to apply that query function for more than one node. For example I have 2 nodes: Contact (has "name" attribute) and Delivery (has "address" attribute)
I succeeded it by defining two functions for each nodes. However, I also had to put two search box forms with different input id (like constraint1 and constraint2). And I had to make the queries in the associated search boxes.
Is there a way to make queries which are defined for multiple nodes in one search box? For example searching Contact-name and/or Delivery-adress in the same search box?
Thanks
First I’d like to specify that the predefined constraints feature is still experimental (but fully functional) and doesn’t have any documentation yet.
It is intended to be used in configuration to filter data displayed in nodes and in the example the use of search boxes is just to show dynamically how it works.
A common use of this feature would be to add the list of predefined constraint you want in the configuration for every node types.
Let's take an example:
With the following configuration example the graph will be filtered to show only Person nodes having "born" attribute and only Movie nodes with title in the provided list:
"Person": {
"getPredefinedConstraints": function (node) {
return ["has($identifier.born)"];
},
...
}
"Movie": {
"getPredefinedConstraints": function (node) {
return ["$identifier.title IN [\"The Matrix\", \"The Matrix Reloaded\", \"The Matrix Revolutions\"]"];
},
...
}
The $identifier variable is then replaced during query generation with the corresponding node identifier. In this case the generated query would look like this:
MATCH (person:`Person`) WHERE has(person.born) RETURN person
In your case if I understood your question correctly you are trying to use this feature to implement a search box to filter the data. I'm still working on that feature but it won't be available soon :(
This is a workaround but maybe it could work in your use case, you could keep the search box value in a variable:
var value = d3.select("#constraint")[0][0].value;
inputValue = value;
Then use it in the predefined constraint of all the nodes type you want.
In this example Person will be filtered based on the name attribute and Movie on title:
"Person": {
"getPredefinedConstraints": function (node) {
if (inputValue) {
return ["$identifier.name =~ '(?i).*" + inputValue + ".*'"];
} else {
return [];
}
},
...
}
"Movie": {
"getPredefinedConstraints": function (node) {
if (inputValue) {
return ["$identifier.title =~ '(?i).*" + inputValue + ".*'"];
} else {
return [];
}
},
...
}
Everything is in the HTML page of this example so you can view the full source directly on the page.
#Popoto, thanks for the descriptive reply. I tried your suggestion and it worked pretty much well. With the actual codes, when I make a query it was showing only the queried node and make the other node amount zero. I wanted to make a query which queries only the related node while the number of other nodes are still same.
I tried a temporary solution for my problem. What I did is:
Export the all the node data to JSON file, search my query constraint in the exported JSONs, if the file is existing in JSON, then run the query in the related node; and if not, do nothing.
With that way, of course I needed to define many functions with different variable names (as much as the node amount). Anyhow, it is not a propoer way, bu it worked for now.
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
Im using the jQuery mobile search filter list:
http://jquerymobile.com/test/docs/lists/lists-performance.html
Im having somer performance issues, my list is a little slow to filter on some phones. To try and aid performance I want to change the search so only items starting with the search text are returned.
So 'aris' currently finds the result 'paris' but I want this changed. I can see its possible from the documentation below but I dont know how to implement the code.
http://jquerymobile.com/test/docs/lists/docs-lists.html
$("document").ready( function (){
$(".ui-listview").listview('option', 'filterCallback', yourFilterFunction)
});
This seems to demonstrate how you write and call your own function, but ive no idea how to write it! Thanks
http://blog.safaribooksonline.com/2012/02/14/jquery-mobile-tip-write-your-own-list-view-filter-function/
UPDATE - Ive tried the following in a seperate js file:
$("document").ready( function (){
function beginsWith( text, pattern) {
text= text.toLowerCase();
pattern = pattern.toLowerCase();
return pattern == text.substr( 0, pattern.length );
}
$(".ui-listview").listview('option', 'filterCallback', beginsWith)
});
might look something like this:
function beginsWith( text, pattern) {
text= text.toLowerCase();
pattern = pattern.toLowerCase();
return pattern == text.substr( 0, pattern.length );
}
Basically you compare from 0 to "length" of what you're matching to the source. So if you pass in "test","tester" it will see you're passing in a string of length 4 and then substr "tester" from 0,4, which gives you "test". Then "test" is equal to "test"... so return true. Lowercase them to make it case insensitive.
Another trick to improve filter performance, only filter once they've entered more than 1 character.
edit it appears jQueryMobile's filter function expects that "true" means it was not found... so it needs to be backwards. return pattern != text.substr( 0, pattern.length );
This worked for me. I am using regular expression here so sort of different way to achieve the same thing.
But the reason why my code didn't work initially was that the list item had a lot of spaces at the beginning and at the end (found that it got added on it's own while debugging).
So I do a trim on the text before doing the match. I have a feeling Jonathan Rowny's implementation will also work if we do text.trim() before matching.
$(".ui-listview").listview('option', 'filterCallback', function (text, searchValue) {
var matcher = new RegExp("^" + searchValue, "i");
return !matcher.test(text.trim());
});
I'm primarily a Rails developer, and so in whipping up a little script for my company's Hubot instance, I was hoping to accomplish the following:
robot.brain.data.contacts ||= {}
Or, only make this new hash if it doesn't already exist. The idea being that I want to have a contacts array added dynamically through the script so I don't have to modify Hubot's source, and I obviously don't want to overwrite any contacts I add to it.
Question: is there a quick little construct like the Rails ||= that I can use in Coffeescript to achieve the above goal?
Cheers.
You can use ?= for conditional assignment:
speed ?= 75
The ? is the "Existential Operator" in CoffeeScript, so it will test for existence (not truthiness):
if (typeof speed === "undefined" || speed === null) speed = 75;
The resulting JS is a bit different in your case, though, because you are testing an object property, not just a variable, so robot.brain.data.contacts ?= {} results in the following:
var _base, _ref;
if ((_ref = (_base = robot.brain.data).contacts) != null) {
_ref;
} else {
_base.contacts = {};
};
More info: http://jashkenas.github.com/coffee-script/
I personally use or= instead of ?= mainly because that's what I call ||= (or-equal) when I use it in Ruby.
robot.brain.data.contacts or= {}
The difference being that or= short-circuits when robot.brain.data.contacts is not null, whereas ?= tests for null and only sets robot.brain.data.contacts to {} if not null.
See the compiled difference.
As mentioned in another post, neither method checks for the existence of robot, robot.brain or robot.brain.data, but neither does the Ruby equivalent.
Edit:
Also, in CoffeeScript or= and ||= compile to the same JS.
?= will assign a variable if it's null or undefined.
Use it like speed ?= 25
It's called the existential operator in Coffeescript and is ?=, http://coffeescript.org/. Quoting below:
The Existential Operator
It's a little difficult to check for the existence of a variable in
JavaScript. if (variable) comes close, but fails for zero, the empty
string, and false. CoffeeScript's existential operator ? returns true
unless a variable is null or undefined, which makes it analogous to
Ruby's nil?
It can also be used for safer conditional assignment than ||=
provides, for cases where you may be handling numbers or strings.
The Coco dialect of CoffeeScript, http://github.com/satyr/coco , supports the array and object autovivification operators # and ##:
robot#brain#data#contacts.foo = 1
compiles to - granted, hairy-looking -
var _ref, _ref2;
((_ref = (_ref2 = robot.brain || (robot.brain = {})).data || (_ref2.data = {})).contacts || (_ref.contacts = {})).foo = 1;
which ensures that each step of the way, robot.brain, brain.data, data.contacts actually exists.
Of course you might just want the actual conditional assignment operator (which, according to the above answers, also exists in CoffeeScript):
robot.brain.data.contacts ?= {}
that compiles to
var _ref;
(_ref = robot.brain.data).contacts == null && (_ref.contacts = {});
a ||= b means if a exists, do nothing. If a doesn't exist, make it equal to b.
Example1:
a = undefined;
console.log(a ||= "some_string") //prints some_string
Example2:
a = 10
console.log(a ||= "some_string") //prints 10