I have two sections with same lightning-input field. I need error to be shown only to the field which is currently been input by the user.
HTML:
<template for:each ={checks.options} for:item="check">
<ul key={check}>
<lightning-input type="text" data-id={checks.items} label="Numbers"
value={check.totalsize} onclick={valuecheck} onblur={callValidations}>
</lightning-input>
<template if:true={errorMessage}>
{msg}
</template>
<template if:true={successMessage}>
{msg}
</template>
</template>
This number field will be displayed multiple times as it will be iterated with options node. However, at one time I need to show error or success message for one particular node. Can anyone suggest on this?
Related
I'm working on the simple Meteor Chat application. I have two different collections, textMessages and FS.images. I need to display those element based on time in one flow. Now I submit them both apart from each other and can't figure the way, while looping over them using #each handler.
Template code :
<ul class="list-group">
{{#each messages}}
<li class="list-group-item">
<span class="badge">x</span>
UserN: {{text}}
</li>
{{/each}}
</ul>
<ul class="list-group">
{{#each showImages}}
{{#unless this.isUploaded}}
{{> FS.UploadProgressBar bootstrap=true}}
{{/unless}}
{{> imageItem}}
{{/each}}
</ul>
You can create a helper in the template that would combine both collections results and sort them by date if each user has set of images and text.
If each message has a set of images you can use this package for creating helper for the collection in such a way you can get the set of images for a certain message.
meteor-collection-helpers
Assuming that i have the following data in my params
params:[input:[1, 2, 3]]
And i have the following form in my Grails app
<div class="block1">
<label class="control-label">
<g:message code="input.label" default="Input"/>
</label>
<div class="controls">
<g:textField id="input1" name="input" value="${input}" readonly="${actionName != 'show' ? false : true}"/>
</div>
</div>
<div class="block2">
<label class="control-label">
<g:message code="input.label" default="Input"/>
</label>
<div class="controls">
<g:textField id="input2" name="input" value="${input}" readonly="${actionName != 'show' ? false : true}"/>
</div>
</div>
<div class="block3">
<label class="control-label">
<g:message code="input.label" default="Input"/>
</label>
<div class="controls">
<g:textField id="input3" name="input" value="${input}" readonly="${actionName != 'show' ? false : true}"/>
</div>
</div>
The form design above is correct, because in my form design, there will be several inputs of the same name (but each will be saved to the database under different primary keys) and it can be increases and decreases according to user selection.
Few questions using the above
How do i make it so that the value for input1 is params.input[0], input2 is params.input[1] and input3 is params.input[2] in the view? I can pass the model from controller without problem, but i couldn't distribute the value properly to each input on the form.
Is there any way to change the value ${input} dynamically? As in if i want to change the value to ${input[0]} or ${input[1]}
Can i automatically set the amount of block appended into the form using the g:each tag? Say like if from controller i want to set the rendering block amount to 3, so can i use the g:each tag to render the block 3 times in the form?
Thanks
The links are examples of how to use ajax/jquery to get values from a remote call and replace html element (divId) within a page - this divId could be the entire
<input type="text" name="input" value="newvalue"/>
upon triggering some form of call as above to get the new value.. in regards to
g:textField
yes it works like all other grails tags in the end they are transformed back to the correct HTML terminology...
The actual variable value is dynamic if you defined
<input name="existingvariable" value="${something}" ...
where something was a parameter from the given controller - and then you updated the call so
://YOURHOST:8080/yourapp/controller?existingvariable=newvalue
and refreshed or clicked this link which is what ajax would be doing for you doing a new call to either another controller to generate new values or same and passing new value to it and then grabbing data and pushing it back onto the divId ... (all in the background)
Groovy loading into divs
Grails - Select menu not rendering
I want my selects dropdowns to auto populate with Ajax in Grails website
The above are all related to using ajax to populate / update existing form elements
If you wish to update a live form with a new live value (non existant in DB) take a look at modaldynamix plugin. //github.com/vahidhedayati/modaldynamix
I just started use meteor about a week ago, and I'm trying to write my first app for logging time for a project.
At the end of the day users can go in and log their hours with a single row consisting of 2 drop down select menus. First is the clients drop down. then based on that client (using Session) the 2nd drop down for client projects will auto-populate, and finally allowing you to enter your hours in a text input.
I have this working, but I also need to implement a button so you can add multiple rows at once. Sort of like jQuery Clone() in case the user worked on different clients or client projects.
I tried to re-render the row once newRow is clicked, but then the second row manipulates the first row because I'm assuming they're both referencing the same template.
To simplify? 1) How do I duplicate the below the last one, and 2) How do I use the same template for 1 or more rows and have them not affect each other?
Any thoughts/help is welcome
<form id="add_time">
<template name="row">
<ul>
{{> clientsDD}}
{{> projectsDD}}
{{> hoursAndTasks}}
</ul>
</template>
<p>Add another row
<input type="submit" id="submit_hours" value="Submit"/>
</form>
Template.clientsDD.clients = function() {
return Clients.find({});
}
Template.projectsDD.projects = function(event) {
return Projects.find({"client.clientId" : Session.get("clientSelected")});
}
Template.addHours.events({
'change select[name="clientsDD"]' : function(event){
newClient = $(event.target).val();
Session.set("clientSelected", newClient);
},
'change select[name="projectsDD"]' : function(event){
newProject = $(event.target).val();
}
});
There are two ways in my mind this can be done. As Meteor doesn't require page reloads to update your content. There is nothing to stop you have the row save on completion and then just having a loop which populates the page. Your form becomes something like this:
<form id="add_time">
{{#each rows}}
{{> row}}
{{/each}}
{{> row}}
<input type="submit" id="submit_hours" value="Save and Add Another"/>
<input type="button" id="submit_and_exit" value="Save and Exit"/>
</form>
<template name="row">
<ul>
{{> clientsDD _id}}
{{> projectsDD _id}}
{{> hoursAndTasks _id}}
</ul>
</template>
This would loop through a rows helper which contains your hours data displaying it for editing along with providing a new empty row. This would automatically update on save with no need for any DOM manipulation.
The other option is to duplicate the fields. I'm not aware of a method that allows you to duplicate a template but there's no reason why jQuery clone type function wouldn't work however you'd need to make sure that on saving they are saved separately. clientsDD[] as the input names should be okay as long as you give each group of fields a unique id.
I would personally use the first method thou as IMHO this is the way Meteor is designed to work so you don't have the need to manipulate the DOM as it will seamlessly update with the data store.
This application is for running a writing contest.
Coodinators are assigning entries to judges for them to judge. I have three sets of data I retrieve from the server, a judge list, an entries list and an assignment list that ties the two together. There can be a variable number of input fields...if a judge has agreed to judge 4 entries, there will be 4 inputs...if 7, then 7.
I have all of that working OK, but only insofar as the entry number can be input and the data updated.
Now I would like confirm that the entryID IS a valid ID by checking the list and also to show a field or two on the screen so the coordinator knows that they typed in the right entry.
The relevant section of the HTML
<div ng-app>
<div id="assignment" ng-controller="AssignData" ng-init="JudgeID=107;CategorySelect='MS';PublishSelect='P'">
<div ng-show="loaded">
<form class="entryform ng-cloak" name="assignform" ng-submit="sendForm()">
<p>Entry numbers assigned to this judge</p>
<p ng-repeat="assign in (formassigns =(assigns | filter:AssignedJudge))">
<input type="text" ng-model="assign.entryid" required/>
{{entries.authorname}} {{entries.entrytitle}}
</p>
<button type="submit">Save Assignments</button>
<p>This will keep the assignments attached to this judge.
You will be able to send all of your assignments to all
of your judges when you are finished.</p>
</form>
</div>
</div>
</div>
The part that I haven't been able to figure out is how to make entries.authorname and entries.entrytitle show up when the user types in an entryid that is in entries.entryid.
assigns and entries are both arrays of records using JSON
assigns is JSON made up of assigns.id, assigns.judgeid, assigns.entryid.
entries is JSON made up of entries.entryid, entries.entrytitle, entries.authorname
When assigns arrives, entryid is empty. The form is used to fill in the entryid and when it is filled in, I'd like to be able to show next to it the title and authorname for that entry.
NOTE: I've added some important information at the end of this answer. So please read to the end before you decide what you're going to do.
You're going to have to do something that does the look up.
Also a few other changes I'd add, mostly so you can actually validate the items in your repeat.
(There's a summary of what I did after the psuedo code below).
<div ng-app>
<div id="assignment" ng-controller="AssignData"
ng-init="JudgeID=107;CategorySelect='MS';PublishSelect='P'">
<div ng-show="loaded">
<form class="entryform ng-cloak" name="assignform" ng-submit="sendForm()">
<p>Entry numbers assigned to this judge</p>
<p ng-repeat="assign in (formassigns =(assigns | filter:AssignedJudge))"
ng-form="assignForm">
<input type="text" ng-model="assign.entryid"
ng-change="checkEntryId(assign, assignForm)"
name="entryid" required/>
<span ng-show="assignForm.entryid.$error.required">required</span>
<span ng-show="assignForm.$error.validEntry">
{{assignForm.$error.validEntry[0]}}</span>
{{assign.entry.authorname}} {{assign.entry.entrytitle}}
</p>
<button type="submit">Save Assignments</button>
<p>This will keep the assignments attached to this judge.
You will be able to send all of your assignments to all
of your judges when you are finished.</p>
</form>
</div>
</div>
</div>
Then in your controller, you'd add a function like so (be sure to inject $http or a service you wrote to pull the values from the server):
$scope.checkEntryId = function(assign, form) {
$http.get('/CheckEntry?id=' + assign.entryid,
function(entry) {
if(entry) {
assign.entry = entry;
form.$setValidity('validEntry', true);
} else {
form.$setValidity('validEntry', false, 'No entry found with that id');
}
}, function() {
form.$setValidity('validEntry', true, 'An error occurred during the request');
console.log('an error occurred');
});
};
The basic idea above:
Use ng-form on your repeating elements to allow for validation of those dynamic parts.
Create a function that you can pass your item and your nested form to.
In that function, make your AJAX call to see if the entry is valid.
Check the validity based on the response, and call $setValidity on your nested form you passed to the function.
Use ng-show on a span (or something) in your nested form to show your validation messages.
Also, assign your checked entry to your repeated object for display purposes. (you could use a seperate array if you want, I suppose, but that would probably get unnecessarily complicated).
I hope that helps.
EDIT: Other thoughts
You might want to wrap your call in a $timeout or some sort of throttling function to prevent the entry id check from spamming yoru server. This is an implementation detail that's totally up to you.
If this is a check you do all over the place, you'll probably want to create a directive to do it. The idea would be very similar, but you'll do the check inside of a $parser on the ngModelController.
The method I showed above will still actually update the model's entryid, even if it's invalid. This is usually not a big deal. If it is, you'll want to go with what I suggested in "other thought #2", which is a custom validation directive.
If you need more information about validation via custom directives I did a blog entry on that a while back
I've got a page where messages and associated elements (responses, forwards, etc) all share a class based on the database id of the parent.
For example
<pre>
<div id="recentMessages">
<div id="a3" class="message a3">this is a message</div>
<div id="a5" class="message a5">this is another message</div>
</div>
<div id="recentComments">
<div id="a3" class="comment a3">this is a comment</div>
<div id="a5" class="comment a5">this is another comment</div>
</div>
<div id="recentActions">
<div id="a3" class="action a3">tim posted a new message</div>
<div id="a4" class="action a4">sara forwarded a message to john</div>
</div>
</pre>
at times I need to remove all elements with the same id, so I originally had
jQuery('div#'+id).remove();
but that would sometimes not remove all the ids because ids are supposed to be unique.
So I added the id as a class. now I use
jQuery('div.'+id).remove();
but this seems to be about 80% effective, and sometimes the divs aren't being removed.
I'm not sure if the issue is because the div has more than one class, but I need the classes because that is how I refer to the elements when somebody clicks.
For instance,
jQuery('div.message').click(function(){
get the id, send it to the server and get the message
});
is there something wrong I'm doing here? or is there a better way to do this?
Looks like this was an issue where a function was being called using a variable which had already been defined. I didn't realize this would cause a problem.
For instance:
jQuery('div','div#recentActions').click(function(){
var removeId=jQuery(this).attr('id').replace('','a');
removeDiv(removeId);
});
function removeDiv(removeId){
jQuery('div#a'+removeId).remove();
}
I can't say for sure this was the issue, but changing the function to:
function removeDiv(cancelId){
jQuery('div#a'+canceld).remove();
}
seems to be working.