In Codeigniter, I have a table, and I am trying to apply multiple filters on it at the same time.
For example, let's say I make 5 checkboxes and a button "apply", each of the checkboxes applies a filter to my table like so:
When I click on first check box, I want my url to change from localhost/ci to localhost/ci/filter1.
When I click both checkbox1 and checkbox2, I want my url to change to localhost/ci/filter1/filter2 and so on.
Is there any way to do this without using jQuery, or AJAX?
Related
Scenario/Context
I've got a drop down menu with two input elements underneath.
From the dropdown menu, are names of companies (with values set to the respective company id's), and another prompt to Add a new company.
If the option to Add a new company is selected from the dropdown, then the user is to fill out the 2 input field elements (i.e. company name and company email).
Otherwise, if an available company is selected from the dropdown,
then the 2 input fields (for company name and email are to be disabled).
My question
Is this possible to do without an AJAX call if I want things to happen without a page refresh?
Can anyone suggest some other alternatives??
Many thanks!
That is absolutely possible, though you'd need to use some JavaScript to make it happen and load a bit more data to the DOM on the initial page load.
For each option in your company select dropdown, add a data attribute for the name and email.
Then, watch that dropdown for the change event in JavaScript. Whenever that event is fired, if the data-company-name and data-company-email attributes are defined for the selected option, disable the input fields and populate them with those values. If those data attributes are not defined for the option (likely only for your 'Add a new company' option), then clear the values from the input fields and enable them.
Is it possible to display an input form field based on the value of a select menu? Or is this something I'd have to do in javascript/jquery?
My list is pulled from the database if that changes anything.
If you want to make this happen during the form filling, yes you probably will need to use Ajax (via vanilla Javascript or jQuery), if you need to query your database as options are selected, or just CSS: http://www.coderanch.com/t/594720/HTML-CSS-JavaScript/Show-Hide-text-box-select, if you populated via database but don't need to check it again for changes.
I have a bit of a unique challenge today. I have a client that wants to be able to search for multiple items based on inserts into a cfgrid. Suppose we have the following web form:
A Country selection dropdown
A State Selection dependent AJAX dropdown
A city Selection dependent AJAX dropdown
An ADD Button
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A CFGRID that will populate a row with selections when the user clicks the add button
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And finally, a CLEAR button, and a GO button on the bottom.
The resulting page will then query the database and get some statistics about the cities selected. So, suppose an individual picks USA > Arizona > Scottsdale and USA > Arizona > Flagstaff. The grid below the options will 'save' each selection and reset to their default options, waiting for a user to pick additional options or click on 'GO'.
The resulting page will then generate columns that list some statistics about the communities and highlight the 'best of' between each selected community.
Each time a user selects the ADD button (assuming three criteria are selected) I want the information to be added into a CFGRID that displays the options selected. Then, After the user selects at least one country/city/state option, have all of the data in the CFGRID get passed to another page that does a query from the data selected. In theory, the user could pick as many communities as they want, assuming they are willing to let the database sludge through enough data to get what they want and wait through a 'loading' screen to get it.
I'm having these challenges, in no particular order:
- I have an HTML grid that I must use per client spec (No Java or Flash, must be HTML)
- I have no idea how to get the selected options into the CFGRID. I assume there is some JavaScript I can write that uses some sort of AddRow function to add data into the grid with the add button but cannot seem to find how to it on the interwebs
- After we conquer the above challenge, how do I pass the data from the grid into the results page? I thought about passing one big string or a structure, but I'm not sure how to do that through the URL or posting, nor how to get the data out of the grid. I wonder if I am better off coding some sort of string that gets passed from the options page to the results page with a get method instead of dealing with the stuff in the CFGRID and have the CFGRID serve only as a 'dummy' display container.
- Finally, after the pass is complete, I would need to loop through through the structure and perform a CFQUERY or CFSTOREDPROC on each row of data, then get the statistics I need to display on the results page. I assume this would depend on how I am getting the data from the options selection page to the results page.
THANK YOU ALL!
CFGRID is great to start, but it can be b*tch to customize and extend... Have you tried editable CFGRID with bind? See how far off it is from what you want first. If it turns out to be very far, then you might want to go for a jqGrid and code up some jQuery.
To start, read Using HTML grids and make the cfgrid editable.
http://help.adobe.com/en_US/ColdFusion/9.0/Developing/WSc3ff6d0ea77859461172e0811cbec22c24-7a01.html#WSc3ff6d0ea77859461172e0811cbec22c24-72e0
Once you got that working, look at these provided JS functions that you can use with CFGRID
http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WS0ef8c004658c1089-6262c847120f1a3b244-8000.html
http://help.adobe.com/en_US/ColdFusion/9.0/CFMLRef/WSd160b5fdf5100e8f-4439fdac128193edfd6-7f5f.html
If you still demand a bit more, you might need to dig into the underlying ExtJS component. At that point I would rather use jqGrid
I found out that the best way to handle this was by using a SerializeJSON call and a Deserialize JSON call back and forth. By using JavaScript notation we are able to pass a complex JavaScript object (array) between one page and another. This has the value add of not having to worry about sessions timing out and making URLs clickable from one solution to the next.
This may be a followup to this question Possible to make jqGrid Search Box Stay on Page? - Or it may be unrelated because clicking the search button manually shows the same behavior.
We have a dynamically generated grid that is created by a) making an ajax request to get the grid columns based on a report id and then b) setting up the grid model and fetching the data. When the page loads initially, we pass in a starting report id, but there is a dropdown box on the page that lets the user change reports.
When the dropdown changes, I unload any existing grid, make the ajax request to get the columns, set up the grid model, and then get the data. The columns change, the data changes, and everything looks correct - except the search columns do not change in the search dropdown.
If I close the search box and reopen it, it still has the old search columns. Likewise, if I click the reset button or reload the entire grid.
I found it after a bit more poking around. I needed to set the recreateFilter option to true
prmSearch = {recreateFilter:true,multipleSearch:true,overlay:false,sopt:['cn','eq','ne','lt','le','gt','ge','in','ni','nc']};
I'm currently using jqGrid and ASP.Net MVC. With my current project, my goal is to provide a grid of data to the end user, and they can then edit this. The data is machine-generated, and the users will be confirming if the machine is correct or not.
I think ideally for speed, I'd like to provide a row per item, with a radio button group as the editable. The users could then pick from the values 'Unknown', 'Correct', 'Incorrect'.
As there will be a lot of data, I'd also like to provide a control of some type that can set all rows in the grid to one of the available radio button choices, for the user experience.
Given that there seems to be no native support for this in jqGrid, I wanted to ask if anyone has had any experience writing something like this, and whether this is achievable and reliable, or whether I should stick with the drop-down editable approach that is native to jqGrid.
To implement radio button as the editable instead of the standard drop-down editable approach you can use so named custom editing feature of jqGrid (see http://www.trirand.com/jqgridwiki/doku.php?id=wiki:common_rules#custom). This allows you to create any custom control to edit the cell value. An example of the implementation you can find here: Add multiple input elements in a custom edit type field.
To set all rows in the grid to one of the available radio button choices you can use either a control outside of jqGrid or add an additional custom button in the navigation bar (see http://www.trirand.com/jqgridwiki/doku.php?id=wiki:custom_buttons). If you search for navButtonAdd you will find a lot of examples how to implement this, for example, Jqgrid: navigation based on the selected row. Because you use server based data, you can just call a method on the server to make the changes which you need and then call trigger("reloadGrid") to refresh jqGrid data.