I am building a dynamic query using eloquent based on user inputs.
$query = \App\Model::query();
if($this == request('that')){
$query->where(...); // building dynamic query based on user inputs
}
and finally user can type number of records shown per page in an html input field named count or checking a checkbox input type named all and following code completes dynamic query in back-end:
if (request('all')) {
$result = $query->get();
}else {
$result = $query->paginate(request('count'));
}
Also in front-end I have following code to show pagination links:
{{$result->links()}}
The problem is when user chooses to show all records we face following error:
Method links does not exist.
links method is not callable when we retrieve objects via get() method. What is the best practice in order not to face this error?
It's because ->get() method return collection instead of paginator model Illuminate\Pagination\LengthAwarePaginator. So I can recomment you send some addition variable from your controller which indicate if you need execute $result->links().
Controller:
return view('yourView', [showPagination => is_null(request('all'))]);
View:
#if($showPagination)
{{$result->links()}}
#endif
Related
I want to override the item listing template file core/themes/classy/templates/dataset/item-list.html.twig for listing the fields field_slider_images as well as field_blog_tags respectively of their's multiple values of the field.
I have selected "Unordered List" in the view.
Please do check the attached image.
I have created following files :
item-list--field-blog-tags.html.twig
item-list--field-slider-images.html.twig
But, this is not rendered for the listing of the fields.
When I have created item-list.html.twig then only it will access.
However, both fields have different data to style and I am not able to get the current field name which is loading it's data in item-list.html.twig.
Had a brief look at this and it doesn't seem that 'item-list' to have suggestions, which is quite unfortunate.
In this situation there are two options:
Create your own suggestion which would accomplish exactly what you need.
You'll have to do something like this:
/
/*add new variable to theme with suggestion name*/
function hook_theme_registry_alter(&$theme_registry) {
$theme_registry['item_list']['variables']['suggestion'] = '';
}
//send a value to newly added variable to use it build the suggestion
function hook_ENTITY_TYPE_view(array &$build, $entity, $display, $view_mode) {
//add condition here if field exists or whatever, do the same for other field
$build['field_slider_images']['#suggestion'] = 'field_slider_images';
}
//use newly added variable to build suggestion
function hook_theme_suggestions_THEME_HOOK(array $variables) {//THEME_HOOK=item_list
$suggestions = array();
if(isset($variables['suggestion'])){
$suggestions[] = 'item_list__' . $variables['suggestion'];
}
return $suggestions;
}
Now you should be able to use item-list--field-slider-images.html.twig
Second option is to do what others in core did: use a new theme
function hook_ENTITY_TYPE_view(array &$build, $entity, $display, $view_mode) {
//add condition here if field exists or whatever, do the same for other field
$build['field_slider_images']['#theme'] = array(
'item_list',
'item_list__field_slider_images',
);
}
I need to save serial number of the document in a profile document and here is a code of action Execute Script:
if (document1.isNewNote()){
var pdoc:NotesDocument=database.getProfileDocument("LastNumber","")
var lnm=pdoc.getItemValue("lastNumber")[0];
var inputText6:com.ibm.xsp.component.xp.XspInputText = getComponent("inputText6");
inputText6.setValue(lnm);
pdoc.replaceItemValue("lastNumber",lnm);
pdoc.save();
}
This code is not opening profile document at all. Any thing wrong in the code?
"LastNumber" is the name of the form used to create Profile Document ?
this profile document already exist ?
there are no reader fields in this profile document ?
you have an error on this line : var pdoc:NotesDocument=database.getProfileDocument("LastNumber","") ?
or you have debug it and see that pdoc is null ?
instead of pdoc.getItemValue("lastNumber")[0] you can use pdoc.getItemValueInteger("lastNumber") to get a typed result
I supposed that this field contains a number and you want to increment it
instead of using inputText field you can set value directly with document1.setValue("NumberField", lnm);
I second the caution Per is suggesting. Profile documents can be a beast. You should abstract access to the "next number" into a SSJS function call. Btw. in your code snippet you don't actually increment the last number. Also: if your input text control is bound, go after the data source, not the UI.
A crude way (I would use a managed application bean for better isolation) for a better function could be this:
if(document1.isNewNote() {
document1.setValue("DocumentNumber",applicationTools.getNextNumber());
}
Then in a SSJS library you would have:
var applicationTools = {
"getNextNumber" : function() {
synchronized(applicationScope){
var pdoc:NotesDocument=database.getProfileDocument("LastNumber","");
if (!applicationScope.lastNumber) {
applicationScope.lastNumber = pdoc.getItemValueInteger("lastNumber");
}
applicationScope.lastNumber++;
pdoc.replaceItemValue("lastNumber",applicationScope.lastNumber);
pdoc.save(); //Make sure pdoc is writeable by ALL!!!!
pdoc.recycle();
return applicationScope.lastNumber;
}
},
"someOtherUtility" : function(nameToLookup, departments) {
// more stuff here
}
}
Which, in some way has been asked before, but not for a profile field. Someone still could simply go after the applicationScope.lastNumber variable, which is one of the reasons why I rather use a bean. The other: you could do the saving asynchronously, so it would be faster.
Note: in any case the number generation only works when you have a non-replicating database. But abstracting the function opens the possibility to replace fetching the number from the profile with a call to a central number generator ... or any other mechanism ... without changing your form again.
Started using code igniter recently and been trying to make a page that filters events by certain parameters .I have the view page that contains an input type search (searches keywords in database)and a drop down filter list that filters by name of event,location and pricing.however I need help in querying the search results from database and displaying it on my view page .Anyone with an idea? thanks in advance
when you are submitting a form submit it to the controller method and get the post value in controller method
function search()
{
$keyword = $this->input->post('keyword');
$this->load->model('mymodel');
$result = $this->mymodel->getSearchResults($keyword);
$data['results'] = $result;
$this->load->view('search_results',$data);
}
And in your model
function getSearchResults($keyword){
$this->db->like('column_name',$keyword,'after');
return $this->db->get('tablename')->result();
// or you can write query simple way instead of Active Record
// $query = "SELECT BLah blah FROM mytable WHERE column_name like '$keyword%'";
// return $this->db->query($query)->result();
}
I am trying to pass a segment to a controller. The url is like base_url/controller/function/seg1. I want to ensure that if the user try to enter the segment in the address bar, the controller would make sure there are not other words to be proceeded except the segment I want to pass.
For example, If the user tries to type base_url/main/function/(change this to other words) in address bar, the controller will filter the segment. I am not sure how to do it and would appreciate if someone can help me out.
Okay, so the best way to "secure" against such things would be to simply create a session at the time the user logs into your site with two values stored in that session;
1) Their database primary key id, and
2) a session item called 'logged_in'
At the time that your user would log into your site, you would store those two values like this;
$this->session->set_userdata('logged_in', true);
$this->session->set_userdata('user_id', $id);
Where $id is pulled from their user record during authentication.
Now that you have those in there, the next part would be that, in your controller, you would put an if statement in that checks if the user is logged in, as such;
function show($id) {
if($this->session->userdata('logged_in')) {
$posts = $this->Model_posts->get_user_posts($id);
}
}
Now, in your model, you would create a function for pulling the record that you want the user to be able to view based on their user_id. We'll say user posts for example.
function get_user_posts($user_id, $post_id) {
$sql = "SELECT * FROM posts WHERE user_id = ? AND id = ?";
$binds = array($user_id, $post_id);
$qry = $this->db->query($sql, $binds);
$result = array();
while($row = $qry->result_array()) {
array_push($result, $row);
}
return $result;
}
Now, when a logged in user or visitor tries to access records that don't belong to them, they will not retrieve any records because the select statement limits what's returned only to that user.
The structure you have there is
base_url/controller/action
So, your controller is already "filtering" it out because if you don't have a method/function in the controller (methods = actions) then your controller will trigger a 404 Page Not Found error. Of coarse, you could then handle your errors however you see fit, but from what you presented, the item you wish to filter is known as a controller action.
So for instance;
http://www.base_url.com/users/add
denotes that you wish to call the add (function) in the users controller.
If you want to pass the add action an argument, then you would do this as;
http://www.base_url.com/users/show/1
Where show would be a controller action and 1 would be the id of the user you wish to show.
I know it seems like I'm giving a basic intro to MVC methodologies, but like I said, the structure you showed plays out like I described.
Hope this helps.
I am intiating a loading panel in init method and hiding it in ReturnDataPayload event.This is working perfectly when data Table has got some values in it.But when there is no data returned from database , the control is not going to returnDataPayLoad event.Please help me in finding an event which will be fired even when the response doesn't have any data or tell me a way to hide the loading panel.
If you want a custom behavior, use DataSource's sendRequest method of the dataTable's dataSource
(function() {
var YdataTable = YAHOO.widget.DataTable,
YdataSource = YAHOO.util.DataSource;
var settings = {
container:"<DATATABLE_CONTAINER_GOES_HERE>",
source:"<URL_TO_RETRIEVE_YOUR_DATA>",
columnSettings:[
{key:"id", label:"Id"}
],
dataSourceSettings:{
responseType:YdataSource.TYPE_JSON,
responseSchema:{
resultsList:"rs",
fields:[
{key:"id"}
]
}
},
dataTableSettings:{
initialLoad:false
}
}
var dataTable = new YdataTable(
settings.container,
settings.columnSettings,
new YdataSource(
settings.source,
settings.dataSourceSettings),
settings.dataTableSettings);
})();
keep in mind No matter which source is your data: XML, JSON, JavaScript object, TEXT, you always will get your data in a unified way through DataSource's sendRequest method. So when you want to retrieve your data and, at the same time, add custom behavior, use it
dataTable.getDataSource().sendRequest(null, {
success:function(request, response, payload) {
if(response.results.length == 0) {
// No data returned
// Do what you want right here
// You can, for instance, hide the dataTable by calling this.setStyle("display", "none");
} else {
// Some data returned
// If you want to use default the DataTable behavior, just call
this.onDataReturnInitializeTable(request, response, payload);
}
},
scope:dataTable,
argument:dataTable.getState()
});
The properties of the response are
results (Array): Your source of data in a unified way. For each object in the results Array, There is a property according to responseSchema's fields property. Notice i use response.results.length to verify if some data has been returned
error (Boolean): Indicates data error
cached (Boolean): Indicates cached response
meta (Object): Schema-parsed meta data
On the YUI dataTable page, look for Loading data at runtime to see some built-in functions provided by YUI dataTable
I hope it can be useful and feel free to ask for help for anything else you want about YUI. See a demo page of nice features of YUI dataTable