I want to combine multiple IncrementalValuesProvider<T>
I don't find var result = a.Combine(b.Combine(c)); very appealing, because result.Left.Left and result.Right.Left etc are not intuitive at all.
Is there some way I can combine multiple IncrementalValuesProvider<T> into a single custom object? For example
IncrementalValuesProvider<One> one = ...;
IncrementalValuesProvider<Two> two = ...;
IncrementalValuesProvider<Three> three = ...;
IncrementalValuesProvider<Combined> = one.Combine(two.Collect())
.Select(x => new { One = x.Left, Two = x.Right })
.Combine(three.Collect())
.Select(x => new Combined {
One = x.Left.One,
Two = x.Left.Two,
Three = x.Right
});
Absolutely anything will do as long as I don't have to keep traversing left/left/right/left :)
The trick is to convert IncrementalValuesProvider (plural) to IncrementalValueProvider (single).
IncrementalValueProvider<ImmutableArray<one>> newOne = one.Collect();
Then you can do this
var oneAndTwo = one.Combine(two)
.Select((x, cancellationToken) => new
{
One = x.Left,
Two = x.Right
IncrementalValueProvider<OneAndTwoAndThree> oneAndTwoAndThree = oneAndTwo.Combine(three)
.Select((x, cancellationToken) => new OneAndTwoAndThree(
x.Left.One,
x.Left.Two,
x.Right);
Related
When I have an array of Sitecore IDs, for example TargetIDs from a MultilistField, how can I query the ContentSearchManager to return all the SearchResultItem objects?
I have tried the following which gives an "Only constant arguments is supported." error.
using (var s = Sitecore.ContentSearch.ContentSearchManager.GetIndex("sitecore_master_index").CreateSearchContext())
{
rpt.DataSource = s.GetQueryable<SearchResultItem>().Where(x => f.TargetIDs.Contains(x.ItemId));
rpt.DataBind();
}
I suppose I could build up the Linq query manually with multiple OR queries. Is there a way I can use Sitecore.ContentSearch.Utilities.LinqHelper to build the query for me?
Assuming I got this technique to work, is it worth using it for only, say, 10 items? I'm just starting my first Sitecore 7 project and I have it in mind that I want to use the index as much as possible.
Finally, does the Page Editor support editing fields somehow with a SearchResultItem as the source?
Update 1
I wrote this function which utilises the predicate builder as dunston suggests. I don't know yet if this is actually worth using (instead of Items).
public static List<T> GetSearchResultItemsByIDs<T>(ID[] ids, bool mustHaveUrl = true)
where T : Sitecore.ContentSearch.SearchTypes.SearchResultItem, new()
{
Assert.IsNotNull(ids, "ids");
if (!ids.Any())
{
return new List<T>();
}
using (var s = Sitecore.ContentSearch.ContentSearchManager.GetIndex("sitecore_master_index").CreateSearchContext())
{
var predicate = PredicateBuilder.True<T>();
predicate = ids.Aggregate(predicate, (current, id) => current.Or(p => p.ItemId == id));
var results = s.GetQueryable<T>().Where(predicate).ToDictionary(x => x.ItemId);
var query = from id in ids
let item = results.ContainsKey(id) ? results[id] : null
where item != null && (!mustHaveUrl || item.Url != null)
select item;
return query.ToList();
}
}
It forces the results to be in the same order as supplied in the IDs array, which in my case is important. (If anybody knows a better way of doing this, would love to know).
It also, by default, ensures that the Item has a URL.
My main code then becomes:
var f = (Sitecore.Data.Fields.MultilistField) rootItem.Fields["Main navigation links"];
rpt.DataSource = ContentSearchHelper.GetSearchResultItemsByIDs<SearchResultItem>(f.TargetIDs);
rpt.DataBind();
I'm still curious how the Page Editor copes with SearchResultItem or POCOs in general (my second question), am going to continue researching that now.
Thanks for reading,
Steve
You need to use the predicate builder to create multiple OR queries, or AND queries.
The code below should work.
using (var s = Sitecore.ContentSearch.ContentSearchManager.GetIndex("sitecore_master_index").CreateSearchContext())
{
var predicate = PredicateBuilder.True<SearchResultItem>();
foreach (var targetId in f.Targetids)
{
var tempTargetId = targetId;
predicate = predicate.Or(x => x.ItemId == tempTargetId)
}
rpt.DataSource = s.GetQueryable<SearchResultItem>().Where(predicate);
rpt.DataBind();
}
Often, I need to loop through an Ember.ArrayProxy object's content.
Exemple 1, I need to build a list of IDs:
var loc = myArrayProxy.get('length') || 0,
ids = new Array(),
idsList;
while(--loc >= 0) {
var curObject = myArrayProxy.objectAt(loc);
ids.push(curObject.id);
}
idsList = ids.join(',');
Exemple 2, I need to build an Array of primitive objects (not Ember.Object):
var loc = myArrayProxy.get('length') || 0,
newContent = new Array();
while(--loc >= 0) {
var curObject = myArrayProxy.objectAt(loc);
newContent.push({
id: curObject.id,
name: curObject.name
});
}
Question: is there a better way to do this? The "while(--loc >= 0)" seems bad to me.
Ember.ArrayProxy provides many friendly functions (through Ember.Array, Ember.Enumerable, ...). Loops can often be avoided using "forEach". In your 2nd example, you may consider using "map".
Here is a link to Ember.ArrayProxy documentation.
Be sure to look at: Ember.Array and Ember.Enumerable
edit:
For instance, assuming the order of the ids is not relevant, your first example could be written:
var idsList = myArrayProxy.mapProperty('id').join(',');
Ok! I have a flashVar variable that is coming into Flash, its URL encoded but I have already decoded it. My problem is I want the set of variables to be pushed into an array.
Let's say the variables are
"&text0=Enter Text...&size0=18&font0=Arial&color0=0&rotation0=0&y0=360&x0=640&text1=Enter
Text...&size1=18&font1=Arial&color1=0&rotation1=0&y1=360&x1=640"
and so on...
What I want is the variables to go into an array like
myArray[0].text = Enter Text...
myArray[0].size = 18]
myArray[0].font = Arial
myArray[0].color = 0
myArray[0].rotation = 0
myArray[0].y = 360
myArray[0].x = 640
myArray[1].text = ...........
.............................
.............................
myArray[n].text = ...........
I think there must be some way to do this. Most probably I'm thinking regular expression, but I'm pretty bad at regular expression. Please some help would be very very appreciated.
Thank You!
You don't have to decode your query string, just use the URLVariables object - it will do all the decoding for you. Then iterate over its dynamic properties to create your array. Use a RegExp to find the index numbers at the end of your variable keys:
function parseURLVariables( query:String ) : Array {
var vars:URLVariables = new URLVariables (query);
var arr:Array = [];
for (var key : String in vars) {
var splitIndex : int = key.search(/[0-9]+$/);
var name:String = key.substr (0,splitIndex);
var indexNumber:int = parseInt ( key.substr(splitIndex));
arr[indexNumber] ||= {};
arr[indexNumber][name] = vars[key];
}
return arr;
}
Since your query string starts with a an ampersand, you might have to use parseURLVariables ( myString.substr(1)), otherwise the URLVariables object will throw an error, complaining that the query string is not valid (it has to be url encoded, and start with a variable key).
you may use split method of string to something like this;
var astrKeyValue: Array = url.Split( "&" );
in this way each value in astrKeyValue is string keyvalue ( for example font1=Arial )
after than you may split each item with "=" and will get pair key and value ( for key - font1 and for value - arial)
so this code maybe will work for you
var str = "text0=Enter Text...&size0=18&font0=Arial&color0=0&rotation0=0&y0=360&x0=640&text1=Enter Text...&size1=18&font1=Arial&color1=0&rotation1=0&y1=360&x1=640"
var a : Array = str.split( "&" );
var newArr: Array = new Array()
for each ( var str1 in a )
{
var t: Array = str1.split( "=" );
newArr[ t[0] ] = t[1];
}
trace( newArr.text0 ) // -> Enter Text...
Here is a solution for you from me,
//your string data should be like this, there should be a seperate seperator (i've used pipe sign |) for each element which will be converted to an object and then pushed to the array
var strData:String = "text=Enter Text...&size=18&font=Arial&color=0&rotation=0&y=360&x=640|text=Enter Text...&size=18&font=Arial&color=0&rotation=0&y=360&x=640";
var myArray:Array = new Array();
var _tmpArr:Array = strData.split("|");
//populating the array
for(var i:int=0;i<_tmpArr.length;i++)
{
myArray.push(strToObj(_tmpArr[i]));
}
trace(myArray.length);
// coverts chunk of string to object with all key and value in it
function strToObj(str:String):Object
{
var obj:Object = new Object();
var tmpArr:Array = str.split('&');
for (var i:int = 0; i < tmpArr.length; i++)
{
var _arr:Array = String(tmpArr[i]).split('=');
var key:String = String(_arr[0]);
var val:String = String(_arr[1]);
obj[key] = val;
trace(key+" = "+val);
}
trace("----");
return obj;
}
I need to generate some data to unit test my repositories. i was using a loop to generate a list of objects, see codes below. I learned moq is a great mocking library, Can I use moq to generate that and how do I do it?
public IQueryable<Category> GetCategories()
{
IList<Category> result = new List<Category>();
for (int i = 1; i <= 2; i++)
{
Category c = new Category();
c.ID = i;
c.Name = "Parent" + i.ToString();
c.ParentID = 0;
for (int x = i*10; x < i*10+5; x++)
{
Category sub = new Category();
sub.ID = x;
sub.Name = "Sub" + x.ToString();
sub.ParentID = i;
result.Add(sub);
}
result.Add(c);
}
return result.AsQueryable<Category>();
}
You can't use Moq to create the data, but you can use AutoFixture:
public IQueryable<Category> GetCategories()
{
return fixture.CreateMany<Category>().AsQueryable();
}
However, this will not give you a hierarchical tree. It will return objects like this:
Object 1:
- ID = 0
- ParentID = 1
Object 2:
- ID = 2
- ParentID = 3
etc.
If you really need to have this hierarchical data, you would need to use the following code:
public IQueryable<Category> GetCategories()
{
var result = new List<Category>();
// Create the parents
var parents = fixture.Build<Category>()
.Without(x => x.ParentID)
.CreateMany());
result.AddRange(parents);
result.AddRange(parents.SelectMany(p => fixture.Build<Category>()
.With(x => x.ParentID, p.ID)
.CreateMany()));
return result.AsQueryable();
}
This will add multiple parents with multiple subs for each parent.
You can use faker.net to generate fake data. for Example: for dotnet core project its Faker.NETCore.
dotnet add package Faker.NETCore -v 1.0.1
and then use the same in your code in the following manner:-
public void GetStudent()
{
var st = new Student()
st.FirstName = Faker.Name.First();
st.LastName = Faker.Name.Last();
st.Mobile = Faker.Phone.Number();
}
I am able to retrieve database values and insert database values, but I can't figure out what the Update() syntax should be with a where statement.
Environment -> ASP.Net, C#
Settings.ttinclude
const string Namespace = "subsonic_db.Data";
const string ConnectionStringName = "subsonic_dbConnectionString";
//This is the name of your database and is used in naming
//the repository. By default we set it to the connection string name
const string DatabaseName = "subsonic_db";
Retreive example
var product = equipment.SingleOrDefault(x => x.id == 1);
Insert Example
equipment my_equipment = new equipment();
try
{
// insert
my_equipment.parent_id = 0;
my_equipment.primary_id = 0;
my_equipment.product_code = product_code.Text;
my_equipment.product_description = product_description.Text;
my_equipment.product_type_id = Convert.ToInt32(product_type_id.SelectedItem.Value);
my_equipment.created_date = DateTime.Now;
my_equipment.serial_number = serial_number.Text;
my_equipment.Save();
}
catch (Exception err)
{
lblError.Text = err.Message;
}
Edit: Think that I was just too tired last night, it is pretty easy to update. Just use the retrieve function and use the Update() on that.
var equip = Equipment.SingleOrDefault(x => x.id == 1);
lblGeneral.Text = equip.product_description;
equip.product_description = "Test";
equip.Update();
Resolved. View answer above.