I've got a paginated list of cars, on a Spring Boot server, with the parameters sort, range, desc, page, etc to filter and sort by and am generating the URL in Thymeleaf that looks like:
example.com/cars?page=5&sort=mileage
I am wanting to be able to add more parameters to a URL with a few of these already but I'm quite new to this and don't really know how to get the current URL with all the parameters to add more params without losing the previous ones look like
example.com/cars?page=5&sort=mileage&desc=true
I've found an answer to do something like this on Spring but would ideally want to do it on the Thymeleaf template, is this possible?
Get full current url thymeleaf with all parameters
I found that you can get hold of specific parameters in Thymeleaf using ${param.sort} to get hold of the param sort, could something similar to this get hold of all the params currently?
Thanks
If someone is still looking for a thymeleaf template only solution, you could use ${#request.getRequestURI()} with ${#request.getQueryString()} and add your additional parameters via concatenation:
<a th:href="#{${url}}" th:with="url=${#request.getRequestURI()+'?'+#request.getQueryString()+'&foo=bar'}">Link</a>
If you need to escape query parameters, you can use #uris.escapeQueryParam():
<a th:href="#{${url}}" th:with="url=${#request.getRequestURI()+'?'+#request.getQueryString()+'&foo='+#uris.escapeQueryParam('b a r')}">Link</a>
Some further details:
You have to use th:with, otherwise the parser will throw TemplateProcessingException: Access to request parameters is forbidden in this context. in newer thymeleaf versions.
It also works when the current query is empty, the url generator will create a valid url, in my example including one ? and no & in the query part.
Related
In few pages I need to make pagination. This of course can be achieved with URI segments, but in few cases in addition to pagination parameters, I need to pass some other GET parameters for filtering purposes.
So obviously in this case i need to be able access the controller via query string like so:
example.com/?c=controller&m=function
In order to achieve this I set the enable_query_strings to TRUE in main config file.
This seemed to work, but I discovered that it breaks a bunch of different stuff. For example if I use current_url() the URL returned has a ? at the end to accommodate the query string. So if I use it in form, it does not work.
So is there any way to enable the controller access to controller functions only to specified functions?
You can construct you url like this:
/param1/param2/pagination_parameters
So you will be able to send custom data (number of params), and pagination data using just URI segments.
For example if I use current_url() the URL returned has a ? at the end
to accommodate the query string. So if I use it in form, it does not
work.
Please note, that you can also left form 'action' blank, so result will be the same as if you had used current_url() (http request will go to the same script).
Instead of enabling enable_query_strings in main config, just enable in pagination config only. So it will apply to that particular page only.
Ex:
$config['page_query_string'] = TRUE;
I got a big search module in my Codeigniter project. Well simply I am passing variable to a view like
<a href=<?php echo site_url('controller/view/1'); ?>>View List</a>
And fetching its data in controller like
$id=$this->uri->segment(3);
For pagination
http://wwww.site.com/controller/view/<filter id>/<page from>
This is working perfectly in the case of simple query.
Now I got some more filter quires like
Country
State
City
Customer type
etc etc
then the url should be
http://wwww.site.com/controller/view/1/id2/id3/i4/id5
Is this the correct way to do the process ? If not please give a little advice...
I am new to codeigniter
The problem you are facing i have recently found a solution for this.
When you are first sending parameters through url use POST instead.
When you get the parameters you can pass them to session in a variable
type. Next time when you paginate get the type value from session and
put it in your query to get the desired result.
If you have more than 1 parameters you can put them in sessions and
unset them on certain conditions so that they are not called in every query.
I think the best approach here is to create another method in the controller something like filtered_view that accepts a filter_id and a page number, and that methode will fetch the data from the database with the provided filter and you'll use your pagination class as usual.
Hope this help.
I am building a results filtering page using AJAX requests. I would like to reflect the filters in the URL. For example: for price_from I want to add ?price_from=VAL to the URL.
I have a backend that is capable of rendering the page with URL parameters.
After some googling I would a Backbone.router solution which has a hash fallback for the IE that does not support HTML5 history API.
I have a problem with setting a good philosophy of routes. I have a set of filtering parameters (price_from, price_to, color, ...) and I would like to attach each parameter to one route.
Is that possible to chain the routes to match for example: ?price_from=0&price_to=1&color=red? (the item order can change)
It means: call all the routes at the same time and keep the ie backwards compatibility?
Your best bet would be to have a query portion of the URL rather than using GET parameters to denote the search criteria. For example:
Push state: /search/query/price_from=0&price_to=1&color=red
Hash based: #search/query/price_from=0&price_to=1&color=red
Your backend would of course need to change a bit to be able to parse the new URL structure.
I am using Spring MVC. There is a requirement that some user selections remain globally and always in the url parameter. I might also be able to remove it with code at will.
Is there something like Persistent Page Data(like in Tapestry http://tapestry.apache.org/persistent-page-data.html) for Spring MVC.
A link to a similar quesion thats unanswered: http://osdir.com/ml/java.appfuse.user/2005-08/msg00507.html
Thanks
Update
Eventually I used a simple technique, where:
1. I would capture the current page url with query paramters.
2. Add or replace the new parameters into this url.
<c:set var="contextPath" value="${pageContext.request.contextPath}"></c:set>
<c:set var="servletPath" value="${requestScope['javax.servlet.forward.servlet_path']}"></c:set>
<c:set var="currentPath" value="${contextPath}${servletPath}"></c:set>
ageone
where replaceUrlParameter() uses regex to replace or add the query parameter.
Keep this parameters in session and write the Servlet Filter that would add them to any request or would modify request URL so they are visible in URL.
I am trying to build a Search with Pagination in Codeigniter and would love some help with it.
So far, I've realized that I can not use BOTH url segments and query strings together. Using only query strings produces very ugly URLs.
I understand that Codeigniter destroys the GET and I'm trying to put it back in. Ergo... if I place this in the constructor of the search controller, will my problems be solved?
parse_str(substr(strrchr($_SERVER['REQUEST_URI'], "?"), 1), $_GET);
As in, if it works for me, is there anything I need to be aware of security wise?
So far, I've realized that I can not use BOTH url segments and query strings together.
Sure you can. Try this in your config:
$config['uri_protocol'] = "PATH_INFO";
That should get things started. Now, since CI abandons and empties the $_GET variable, you need to repopulate it like this:
parse_str($_SERVER['QUERY_STRING'],$_GET);
Now the only real concern here is that, if you have global XSS filtering on, you should know that you just manually parsed the query string into the global $_GET variable. This means you haven't passed it through any XSS filters. In CI 1.x you can access the filter through the input library like this:
$myvar = $this->input->xss_clean($_GET['myvar']);
In CI 2.x you do it through the security library like this:
$myvar = $this->security->xss_clean($_GET['myvar']);
Of course, it goes without saying that you can extend the Controller class to have a get() method that does all this automatically such that you can do this:
$myvar = $this->get('myvar');