I have a smart table that shows data from odata service. all properties of the entity type are Edm.String.
now i can set a filter for each column of the resulting table with a lot of filter operators.
My goal is to filter the list of available filter operators depending on the selected column.
e.g.
selected colum 'A' then allow only 'equal to'.
Is that somehow possible? I would like to solve it in front end code.
I didn't find anything like that in ui5 docu...
you need to use equals FilterOperator
here is a link for FilterOperator and another example how to use filter in grid table https://sapui5.hana.ondemand.com/
Here is a quick example of setting more than one filter each with different Filter Operator
filterGlobally : function(oEvent) {
var sQuery = oEvent.getParameter("query");
this._oGlobalFilter = null;
if (sQuery) {
this._oGlobalFilter = new Filter([
new Filter("columA", FilterOperator.EQ, sQuery),
new Filter("columB", FilterOperator.Contains, sQuery)
], false);
}
var oFilter = null;
if (this._oGlobalFilter) {
oFilter = new Filter([this._oGlobalFilter], true);
}
this.byId("idTable").getBinding().filter(oFilter, "Application");
Related
I have a sap/ui/comp/smarttable/SmartTable which receives data of one EntitySet (MAINSet). The table has 5 columns. I added three extra columns manually where I put data from another EntitySet (DetailSet) when a specific button is pressed. I do that manually by iterating throw the table and setting the properties like this:
table.getModel().setProperty(sPath + "/EXAMPLE", EXAMPLE);
Filtering works fine for all the properties of the MAINSet. But filtering properties which I retrieve from the DETAILSet does not work with the following logic:
var oBinding = this.getView().byId("table0").getBinding("items");
var aFilter = [];
var sQuery = oEvent.getParameter("query");
if (sQuery) {
aFilter.push(new Filter("EXAMPLE", FilterOperator.Contains , sQuery));
}
oBinding.filter(aFilter);
Is there any way I can filter the SmartTable for the data received from the DETAILSet?
After applying that filter, it adds to the request
&$filter=contains(Status, eq 'active')&$skip=0&$top=100
What I need is to be able to remove that filter
I tried to remove it with the Filter model
var oFilterModel = this.getView ().getModel("filters");
oFilterModel.setProperty ("/", {});
which if you reset the other filters of the type
aFilters.push (new Filter ("Name", FilterOperator.Contains, sName));
The problem is, that you try to manipulate the model. The filtering happens in the binding of the model. Therefore, you need to change the binding of the aggregation.
As shown here:
var oList = this.getView().byId("invoiceList");
var oBinding = oList.getBinding("items");
oBinding.filter([]);
I'm developing a sap ui5 application using sap.ui.table.Table.
I need to apply a filter based on multiple strings. For example, if the user input is an array like:
["Stack", "Overflow"]
I need:
Filter all table fields by "Stack";
Filter the result of point 1 by "Overflow";
the result will be all rows that have "Stack" and "Overflow", no matter the field.
Does anyone have a solution?
As per the sap.ui.model.Filter documentation, you can create a filter either based on a filter info object, or from an array of previously created filters. This allows us to do the following:
Create a filter for the first value (eg "Stack")
Create a filter for the second value (eg "Overflow")
Create a filter which contains both of these values, and use it to filter the table.
Let's have a look at some code.
// We will only display rows where ProductName contains
// "Stack" AND CustomerName equals "Overflow"
var oFilterForProductName,
oFilterForCustomerName,
aArrayWhichContainsBothPreviousFilters = [],
oFilterToSetOnTheTable;
var sValueToFilterTheProductNameOn = "Stack",
sValueToFilterTheCustomerNameOn = "Overflow";
var sKeyForProductNameInTheTableModel = "ProductName",
sKeyForCustomerNameInTheTableModel = "CustomerName";
var oTableToFilter = this.byId("myTableId");
// Step 1: create two filters
oFilterForProductName = new sap.ui.model.Filter(
sKeyForProductNameInTheTableModel,
sap.ui.model.FilterOperator.Contains,
sValueToFilterTheProductNameOn);
oFilterForCustomerName = new sap.ui.model.Filter(
sKeyForCustomerNameInTheTableModel,
sap.ui.model.FilterOperator.EQ,
sValueToFilterTheCustomerNameOn);
// Step 2: add these two filters to an array
aArrayWhichContainsBothPreviousFilters.push(oFilterForProductName);
aArrayWhichContainsBothPreviousFilters.push(oFilterForCustomerName);
// Step 3: create a filter based on the array of filters
oFilterToSetOnTheTable = new sap.ui.model.Filter({
filters: aArrayWhichContainsBothPreviousFilters,
and: true
});
oTableToFilter.getBinding("items").filter(oFilterToSetOnTheTable , sap.ui.model.FilterType.Application);
Hope this helps. Let me know if you have any questions.
Chris
Please pass that array in for loop and pass filters like,
var tableId = this.byId("oTable");
for(var i=0;i < array.length ; i++)
{
oTable.getBinding().filter(new sap.ui.model.Filter("", sap.ui.model.FilterOperator.Contains, array[0]));
}
it may be helpful for you.
I'm new to lucene.net. I want to implement search functionality on a client database. I have the following scenario:
Users will search for clients based on the currently selected city.
If the user wants to search for clients in another city, then he has to change the city and perform the search again.
To refine the search results we need to provide filters on Areas (multiple), Pincode, etc. In other words, I need the equivalent lucene queries to the following sql queries:
SELECT * FROM CLIENTS
WHERE CITY = N'City1'
AND (Area like N'%area1%' OR Area like N'%area2%')
SELECT * FROM CILENTS
WHERE CITY IN ('MUMBAI', 'DELHI')
AND CLIENTTYPE IN ('GOLD', 'SILVER')
Below is the code I've implemented to provide search with city as a filter:
private static IEnumerable<ClientSearchIndexItemDto> _search(string searchQuery, string city, string searchField = "")
{
// validation
if (string.IsNullOrEmpty(searchQuery.Replace("*", "").Replace("?", "")))
return new List<ClientSearchIndexItemDto>();
// set up Lucene searcher
using (var searcher = new IndexSearcher(_directory, false))
{
var hits_limit = 1000;
var analyzer = new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30);
// search by single field
if (!string.IsNullOrEmpty(searchField))
{
var parser = new QueryParser(Lucene.Net.Util.Version.LUCENE_30, searchField, analyzer);
var query = parseQuery(searchQuery, parser);
var hits = searcher.Search(query, hits_limit).ScoreDocs;
var results = _mapLuceneToDataList(hits, searcher);
analyzer.Close();
searcher.Dispose();
return results;
}
else // search by multiple fields (ordered by RELEVANCE)
{
var parser = new MultiFieldQueryParser(Lucene.Net.Util.Version.LUCENE_30, new[]
{
"ClientId",
"ClientName",
"ClientTypeNames",
"CountryName",
"StateName",
"DistrictName",
"City",
"Area",
"Street",
"Pincode",
"ContactNumber",
"DateModified"
}, analyzer);
var query = parseQuery(searchQuery, parser);
var f = new FieldCacheTermsFilter("City",new[] { city });
var hits = searcher.Search(query, f, hits_limit, Sort.RELEVANCE).ScoreDocs;
var results = _mapLuceneToDataList(hits, searcher);
analyzer.Close();
searcher.Dispose();
return results;
}
}
}
Now I have to provide more filters on Area, Pincode, etc. in which Area is multiple. I tried BooleanQuery like below:
var cityFilter = new TermQuery(new Term("City", city));
var areasFilter = new FieldCacheTermsFilter("Area",areas); -- where type of areas is string[]
BooleanQuery filterQuery = new BooleanQuery();
filterQuery.Add(cityFilter, Occur.MUST);
filterQuery.Add(areasFilter, Occur.MUST); -- here filterQuery.Add not have an overloaded method which accepts string[]
If we perform the same operation with single area then it's working fine.
I've tried with ChainedFilter like below, which doesn't seems to satisfy the requirement. The below code performs or operation on city and areas. But the requirement is to perform OR operation between the areas provided in the given city.
var f = new ChainedFilter(new Filter[] { cityFilter, areasFilter });
Can anybody suggest to me how to achieve this in lucene.net? Your help will be appreciated.
You're looking for the BooleanFilter. Almost any query object has a matching filter object.
Look into TermsFilter (from Lucene.Net.Contrib.Queries) if your indexing doesn't match the requirements of FieldCacheTermsFilter. From the documentation of the later; "this filter requires that the field contains only a single term for all documents".
var cityFilter = new FieldCacheTermsFilter("CITY", new[] {"MUMBAI", "DELHI"});
var clientTypeFilter = new FieldCacheTermsFilter("CLIENTTYPE", new [] { "GOLD", "SILVER" });
var areaFilter = new TermsFilter();
areaFilter.AddTerm(new Term("Area", "area1"));
areaFilter.AddTerm(new Term("Area", "area2"));
var filter = new BooleanFilter();
filter.Add(new FilterClause(cityFilter, Occur.MUST));
filter.Add(new FilterClause(clientTypeFilter, Occur.MUST));
filter.Add(new FilterClause(areaFilter, Occur.MUST));
IndexSearcher searcher = null; // TODO.
Query query = null; // TODO.
Int32 hits_limit = 0; // TODO.
var hits = searcher.Search(query, filter, hits_limit, Sort.RELEVANCE).ScoreDocs;
What you are looking for is nested boolean queries so that you have an or (on your cities) but that whole group (matching the or) is itself matched as an and
filter1 AND filter2 AND filter3 AND (filtercity1 OR filtercity2 OR filtercity3)
There is already a good description of how to do this here:
How to create nested boolean query with lucene API (a AND (b OR c))?
I have a rather large linq-to-nhibernate query. I now need to add a filter based on a user-defined function written in t-sql that i have to pass parameters into. In my case, I need to pass in a zipcode that the user types in and pass it to the t-sql function to filter by distance from this zip. Is this possible, or do i need to rewrite my query using the ICriteria api?
i did find a solution:
Note the NHibernate query (nquery) which has RegisterCustomAction:
private void CallZipSqlFunction(ListingQuerySpec spec, IQueryable<Listing> query)
{
var nQuery = query as NHibernate.Linq.Query<Listing>;
//todo: find some way to paramaterize this or use linq-to-nh and not criteria to call the function
// so i don thave to check for escape chars in zipcode
if (spec.ZipCode.Contains("'"))
throw new SecurityException("invalid character");
//yuck!
var functionString = "dbo.GetDistanceForListing('" + spec.ZipCode + "',{alias}.ID) as Distance";
//create a projection representing the function call
var distance = Projections.SqlProjection(functionString, new[] { "Distance" }, new IType[] { NHibernateUtil.String });
//create a filter based on the projection
var filter = Expression.Le(distance, spec.ZipCodeRadius.Value);
//add the distance projection as order by
nQuery.QueryOptions.RegisterCustomAction(x => x.AddOrder(Order.Asc(distance)));
//add teh distance filter
nQuery.QueryOptions.RegisterCustomAction(x => x.Add(filter));
}