We Keep Coding

I can't get my angular ui-router nested states to work. Code inside

I literally tried anything at this point, but I am still learning and can't get this to work.
https://plnkr.co/edit/FrNChlSwHYDbapr7gFQH?p=preview
<a class="collection-item"
ng-repeat="task in tasks"
ui-sref="todo.detail({ todoID: task.todoID })">
{{ task.text }}
</a>
What I am trying to do, is routing to /todo/1, /todo/2 and so on from the "todo"-view, but I seem to have a problem with the $stateParams.
It'd be nice if you guys could help me out and show me where my problem is :).

In addition to adding an id field to your task objects you will need to put a <section ui-view></section> in your todo.html file. This is how nested states work. You can use an href as Oliver mentioned or stick to the sref. I've forked your plunk here as an example.

Assuming each task in your array of tasks has an ID you want to then navigate to you're going to need something along the lines of:
<a class="collection-item"
ng-repeat="task in tasks"
ng-href="#todo/{{ task.todoID }}">
{{ task.text }}
</a>
You'll then need the /todo/:toDoId or something similar set up in your routes.

You have not defined todoID in your tasks items.
This works: https://plnkr.co/edit/Wk33w2eRfpz7UZNNZzFs?p=preview

Angularjs ng-repeat index not working

I want to use ng-repeat more or less as follows:
<div ng-repeat="One_Entry in Entries_List track by One_Entry.Entry_ID"
onClick="DoSomething(One_Entry.Entry_ID)">
<!---
present various fields within "One_Entry"
-->
</div>
Entries_List is a JSON array of objects, being Entry_ID one of the elements within the object.
DoSomething is a function within the related controller that is supposed to perform a specific activity on the structure whose ID is the passed Entry_ID.
I tried using $index as well as $parent.$index but I'm getting an error stating that these variable do not exist.
Could anyone tell me how I can achieve the above functionality?
Thanks.

The object One_Entry is scoped. Therefore onclick won't work. Use ng-click instead which is the Angular version for onclick:
<div ng-repeat="One_Entry in Entries_List track by One_Entry.Entry_ID"
ng-click="DoSomething(One_Entry.Entry_ID)">
<!---
present various fields within "One_Entry"
-->
</div>

It's not OnClick it's ng-click
Change
From :
<div ng-repeat="One_Entry in Entries_List track by One_Entry.Entry_ID"
onClick="DoSomething(One_Entry.Entry_ID)">
To:
<div ng-repeat="One_Entry in Entries_List track by One_Entry.Entry_ID"
ng-click="DoSomething(One_Entry.Entry_ID)">

How to include date/timestamp with each new entry?

Im working on a project that uses AngularJS and Ionic.
The project will have inputs that forms a list and anyone may comment on each list item.
How do I include a date/time that a user adds an list item or comments on it?
I done some research and understand that AngularJS has a existing item, kind of like a inbuilt method ("[ ].created") for this. I saw many projects just use that without any controllers. I tried but it didnt work for me. I tried to then add a js code, didnt work as well. My code below.
Not too sure if its a Ionic compatibility issue if any? Would appreciate some help. Sticking to the AngularJS method will be preferred! Thank you!
The AngularJS documentation for dates
The resultant code is as follows with a filter:
html portion (included ng-controller="MainCtrl")
<div class="post row" ng-repeat="post in posts"></div>
<a href="{{ post.url }}">{{ post.title }}
<span class="url">({{ post.url | hostnameFromUrl }})</span>
</a>
<br> {{ post.created | date }}
<!-- this is the angularJS code added -->

I'm not quite sure what are you tiring to achieve with this "$scope.post" variable
It will throw undefined because you are creating static object "$scope.post" without "get()" function here:
$scope.post = {url: 'http://', title: ''};
If you are tying to revive some data form server try using angular $http component
Here also "$scope.post[0]" and "post.getDate" will become undefined
$scope.date = post.getDate( $scope.post[0].created);

One way binding + dynamic binding in AngularJS

I will start by explaining what we are trying to achieve.
We have just jumped on the Angular bandwagon and are building a prototype with it to see what it is capable of.
Currently there is a load of data (grades in this case) on the server and we display that data using Angular.
The following is the code we use:
<ul class="phones">
<li class="list-group-item" onclick="toggleExpandedView(this, true, 500)" ng-repeat="grade in grades | filter:query | orderBy:orderProp">
<span ng-show="grade.comment"><img src="../Content/images/comment.gif"/></span>
<a class="btn btn-primary editButton" style="float: right; position: absolute; right:10px;" ng-href="#/grades/{{grade.gradeId}}">Edit</a>
<div class="heading1"><a ng-href="{{grade.url}}" target="_blank">{{grade.gradeValue}}</a></div>
<div>Provided by {{grade.assessorFirstname}} {{grade.assessorLastname}} on {{grade.dateModifiedFormatted}} </div>
<div class="expandedGrade" onclick="childDivClick(event)" style="display: none" id="grade-{{grade.gradeId}}">
<label>Attachments</label>{{grade.attachmentCount}}
<br />
<span ng-hide="editing" ng-click="editing = true"><b>{{grade.comment || 'No comments yet'}}</b></span>
<form ng-show="editing" ng-submit="editing = false">
<input type="text" ng-model="grade.comment" placeholder="Comment" ng-required />
<br />
<input id="saveChanges" type="submit" class="btn btn-primary" ng-click="saveChanges(this, grade)" text="Save changes" />
</form>
</div>
</li>
</ul>
As you can see we have a parent ul and for each grade in grades we simply display a li and a div that is hidden and when you click on the li we use jQuery to animate and display the hidden div. In the child div we have a comments field which users can update and click save. On save the current object gets fired back to the server however we are concerned about the fact that Angular has to go through all 2000 grades until it finds the one we are updating (due to two way binding) and this means that everything will be really slow and we cannot afford that.
This is what we want to achieve:
1 We want to bind the data one way so that we can display the list of all grades on the screen and as soon as they are all displayed we want to somehow remove the bindings.
2. When users update the comments for a particular grade we then want to dynamically bind that particular grade so that Angular knows exactly which one it has to update without having to go through the whole collection of 2000+ grades.
I have find a tutorial however I am still unsure how to integrate that into my code.
I have also watched this video and I understand the concept behind it but again, I am struggling to write something that actually works ( we have just started using Angular so I am pretty much a newbie)
Could anyone out there point me in the right direction and provide me with some code samples that would solve the issue we are facing? Any advice and help would be greatly appreciated

You could always use a directive
The logic should go like this
use a service to hold your grades
inject the service into your directive
make a copy and just bind the 'read only view' in your directive
you could watch the service for changes and makes updates as needed
in your directive
as far a lazy loading / updating when needed - use a data service
and call the data service for an update whenever the trigger fires
if your trigger needs to come as a push from some other 'web service' consider a technology
like http://socket.io/
I can put together an example if you would like to see how the services and directives should interact

Select different child JSON element with select input in AngularJS

I am printing a list of food types by making an API call per category. The food in the categories have this JSON structure:
{"uid":"56",
"title":"Nussbrot",
"code":"X 39 2000000",
"final_factor":"0",
"sorting":"0",
"unit":[
{"title":"Scheiben",
"gram":"45",
"max":"100"
},
{"title":"Messerspitzen",
"gram":"250",
"max":"12"}
]
}
I am looping through & printing the values out into a template. No problem. I am printing the "unit" values into a select box:
<option ng-repeat="title in food.unit">{{ title.title }}</option>
And I am currently printing out the grams & title of the first unit in each food like this:
<div class="max">Max is: {{ food.unit[0].max }}</div>
<div class="grams">Grams is: {{ food.unit[0].gram }} </div>
How can I make this dynamic, so that I am printing out the max & grams of the currently selected unit?
Here's my Plunkr.

Angular makes dealing with options and selected options very easy. You should stop thinking in terms of indexes or value. With angular you can bind the entire object, so there's no need to look it up. For example you could do the following for your select:
<select ng-model='selectedUnit' ng-options="unit as unit.title for unit in food.unit"></select>
Let me briefly explain the expression for ng-options
unit in food.unit means we will iterate over the food.unit array storing each value in unit as we go along.
unit as unit.title means what we are putting in the ng-model whenever the user selects an item is the entire unit object itself. The as unit.title tells angular to use the title of the unit as a display for the option.
What this ends up doing is that whenever the user selects one of the options, the entire unit object will be stored in the ng-model variable (in this case selectedUnit). This makes it really easy to bind it elsewhere. For example you can just do:
<div class="unit">Unit is: {{ selectedUnit.title }}</div>
<div class="max">Max is: {{ selectedUnit.max }}</div>
<div class="grams">Grams is: {{ selectedUnit.gram }} </div>
In angular, if you find yourself dealing with indexes or ids and then looking things up by id or index then you are typically doing it wrong. One of the biggest advantages of using angular is how easy it is to deal with objects, and you should really take advantage of it.
For example, I often see newbies doing something like
<li ng-repeat="person in persons">{{person.name} <a ng-click="savePerson(person.id)">Save</a></li>
And then in their code they use the id to look up the person from an array:
$scope.savePerson = function(id){
var person = persons[id];
$http.post('/persons/'+id, person);
};
This kind of lookup is almost always unecessary with angular. You can almost alway just pass the person right away:
<li ng-repeat="person in persons">{{person.name} <a ng-click="savePerson(person)">Save</a></li>
And then have the click handler take the person:
$scope.savePerson = function(person){
$http.post('/persons/'+person.id, person);
};
I know I strayed a bit from your original question. But hopefully this makes sense and helps you write things more simply using the "angular way"
Her is the plunkr for your example:
http://plnkr.co/edit/lEaLPBZNn0ombUe3GPa9?p=preview

you can fist of all handle the selected item with the ng-selected:
http://docs.angularjs.org/api/ng.directive:ngSelected
<select>
<option ng-repeat="title in food.unit" ng-selected="selectedIndex=$index">{{ title.title }}</option>
</select>
<div class="max">Max is: {{ food.unit[selectedIndex].max }}</div>
<div class="grams">Grams is: {{ food.unit[selectedIndex].gram }} </div>
This should propably work ;) Havn't tryed it yet!