Please help!!
What is the correct way to send List of String as a parameter to webservice ?
List < SObject > ObjectContents; // {get; set;} contains records of selected object
List str3 = new List ();
String FormattedValue;
for (SObject a : for (SObject a : ObjectContents)) // for (SObject a : ObjectContents)
{
for(String field:fieldApis){ // fieldApis contains list of fieldnames
FormattedValue = '\'' + a.get(field) + '\'' ; //fetches value of each field
}
str3.add(FormattedValue );
}
//sending data to webservice
sqlArray19.ArrayOfstring a= new sqlArray19.ArrayOfstring();
SQLServerConnector9.BasicHttpBinding_IService1 stub = new SQLServerConnector9.BasicHttpBinding_IService1();
//sqlArray19 and SQLServerConnector9 classes were formed while importing wsdl into Salesforce
List<String> insertMsg = stub.InsertQuery(str3); // getting error in this line
"Compile Error: Method does not exist or incorrect signature: [SQLServerConnector9.BasicHttpBinding_IService1].InsertQuery(LIST<String>)"
.net webservice which will fetch values from Salesforce and return those values
public List<String> InsertQuery(List<String> Values)
{
return Values ;
}
Collections can be troublesome data types when working across platforms with web services. Try converting your List into a string[] (and changing your method, of course).
Related
Below is my code for entity and a function where I need to map entity TblEmployee from a key value pair.
In foreach loop I am getting values based on keys, what should be the best approach to do it?
public class TblEmployee
{
public int EmployeeId { get; set; }
public string Name { get; set; }
}
public int Create()
{
tblEmployee employee = new tblEmployee();
using (var ctx = new theparkeee_testEntities())
{
foreach (string key in HttpContext.Current.Request.Form.AllKeys)
{
string value = HttpContext.Current.Request.Form[key];
//how to map value from key value pair to entity employee.
}
}
}
You can use System.Reflection to get the Properties of an object by their name with Type.GetProperty(string name). After you got the PropertyInfo, you can use SetValue to assign a value to it.
foreach (string key in HttpContext.Current.Request.Form.AllKeys) {
// note that "value" is a reserved word, do not use it as variable name
string val = HttpContext.Current.Request.Form[key];
var propertyInfo = typeof(TblEmployee).GetProperty(key); // can maybe be moved outside of the loop
if (propertyInfo != null) {
propertyInfo.SetValue(employee, val);
}
}
This will work for string properties. If the property is of another type, you have to find the correct type (again, using reflection) and cast the string value before assigning it.
Note that this is not the correct approach to store data in MVC. You should not work with the Request.Form directly, instead your POST action should accept a ViewModel that can be mapped (e.g. using Automapper) to the DB entity. I.e. let the ASP ModelBinder do its work, instead of reinventing the wheel!
[HttpPost]
public ActionResult Submit(MyViewModel postData) {
var employee = Mapper.Map<TblEmployee>(postData);
_ctx.Employees.Add(employee);
_ctx.SaveChanges();
return new HttpStatusCodeResult((int)HttpStatusCode.OK);
}
I'd like to know how can I search for empty strings when I'm using a text type field with Entity Framework.
I've looked the SQL query that Entity is generating and It's using LIKE to compare because It's searching in a text type field, so when I use .Equals(""), == "", == string.Empty, .Contains(""), .Contains(string.Empty), and everything else, It's returning all results because it sql query is like '' and the == command throws exception because It uses the = command that is not valid with text type field.
When I try to use .Equals(null), .Contains(null), == null, It returns nothing, because It is generating FIELD ISNULL command.
I already tried the .Lenght == 0 but It throws an exception...
This works for me:
public class POCO
{
public int Id { get; set; }
public string Name { get; set; }
public string Description { get; set; }
}
static void Main(string[] args)
{
var pocos = new List<POCO>
{
new POCO { Id = 1, Name = "John", Description = "basic" },
new POCO { Id = 2, Name = "Jane", Description = "" },
new POCO { Id = 3, Name = "Joey", Description = string.Empty }
};
pocos.Where(x => x.Description == string.Empty)
.ToList()
.ForEach(x => Console.WriteLine($"{x.Id} {x.Name} {x.Description}"));
}
However the issue MAY BE that your T4 generated object is not fully realized with data you can use, if you are using Entity Framework. EG the translation from the database is not populating objects to interrogate correctly. I would just do an operation like this to see:
using (var context = new YOURCONTEXTNAME())
{
var persons = context.YOURDATABASEOBJECT.ToList();
persons.ForEach(x => Console.WriteLine($"{x.COLUMNINQUESTION}"));
}
If you are successfully having data in it, it should be retrieved. I would not use text if possible. Use a varchar(max) nvarchar(max) xml, whatever text will be deprecated eventually and is bad form so to speak to continue using at this point.
EDIT
Okay I see, the answer is you cannot interogate the object until it is fully realized when it is text. I did a test on my local database and created a context and tested it and sure enough you cannot do a '== string.empty', '== ""', or 'String.IsNullOrEmpty()' on a text. However you can do it once the object is materialized in a realized object. EG:
// Won't work as context does not understand type
//var persons = context.tePersons.Where(x => x.Description == string.Empty).ToList();
//Works fine as transformation got the object translated to a string in .NET
var start = context.tePersons.ToList();
var persons = start.Where(x => x.Description == String.Empty).ToList();
This poses a problem obviously as you need to get ALL your data potentially before performing a predicate. Not the best means by any measure. You could do a sql object for this instead then to do a function, proc, or view to change this.
I am scratching my head here. I have a bootstrap modal that has a field for entering in a sql query. The query I pass uses an AJAX call to a controller and executes the sql query using the code below and returns a JSON object. Something like this:
context.Database.SqlQuery(typeof(object), query);
But all I get are empty objects. I can't pass a type when I don't know the columns. For instance I could do something like this:
public class CusType {
public CusType(){}
public int Id { get; set; }
public string Name { get; set; }
}
and then do something like this:
context.Database.SqlQuery(typeof(CusType), query);
But that won't help me when I don't know or can't know the columns. I even tried an idea using ExpandoObjects. Example:
List<string> columns = new List<string>();
string tmpCol = query;
string[] seperator = new string[] { "from" };
tmpCol = query.ToLower()
.Replace(#"\s+", "")
.Replace("select", "");
tmpCol = tmpCol.Split(seperator, 1, StringSplitOptions.RemoveEmptyEntries)[0];
for (int i = 0; i < tmpCol.Split(',').Length; i++)
{
columns.Add(tmpCol.Split(',')[i]);
}
dynamic data = new ExpandoObject();
IDictionary<string, object> props = (IDictionary<string, object>)data;
foreach (var column in columns)
{
props.Add(column.ToString(), column.ToString());
}
return context.Database.SqlQuery(data.GetType(), query);
But what do I do when I want to execute the query?
context.Database.SqlQuery(data.GetType()??, query);
Even when I do put in the data.GetType() it returns empty objects.
In both examples (using typeof(object) and typeof(data.GetType()) I get this JSON object returned:
[{},{},{},{},{},{},{},{},{},{},{},{},{}]
Any ideas/suggestions?
Entity Framework populates a model based on the type specified. You'll need to use something else or go old school with a DataReader.
Is it possible to get a list of all API Names for all fields on an object?
Schema.DescribeSObjectResult r =Object__c.sObjectType.getDescribe();
List<String>apiNames = new list<String>();
for(Schema.DescribeSObjectResult result : r){
apiNames.add(); //this is where I am lost.
}
You can use the fields method to get the Schema.SObjectTypeFields.
Schema.DescribeSObjectResult r = Account.sObjectType.getDescribe();
List<String>apiNames = new list<String>();
for(string apiName : r.fields.getMap().keySet()){
apiNames.add(apiName);
}
System.debug(apiNames);
I was going through the SOQL documentation , but couldn't find query to fetch all the field data of an entity say , Account , like
select * from Account [ SQL syntax ]
Is there a syntax like the above in SOQL to fetch all the data of account , or the only way is to list all the fields ( though there are lot of fields to be queried )
Create a map like this:
Map<String, Schema.SObjectField> fldObjMap = schema.SObjectType.Account.fields.getMap();
List<Schema.SObjectField> fldObjMapValues = fldObjMap.values();
Then you can iterate through fldObjMapValues to create a SOQL query string:
String theQuery = 'SELECT ';
for(Schema.SObjectField s : fldObjMapValues)
{
String theLabel = s.getDescribe().getLabel(); // Perhaps store this in another map
String theName = s.getDescribe().getName();
String theType = s.getDescribe().getType(); // Perhaps store this in another map
// Continue building your dynamic query string
theQuery += theName + ',';
}
// Trim last comma
theQuery = theQuery.subString(0, theQuery.length() - 1);
// Finalize query string
theQuery += ' FROM Account WHERE ... AND ... LIMIT ...';
// Make your dynamic call
Account[] accounts = Database.query(theQuery);
superfell is correct, there is no way to directly do a SELECT *. However, this little code recipe will work (well, I haven't tested it but I think it looks ok). Understandably Force.com wants a multi-tenant architecture where resources are only provisioned as explicitly needed - not easily by doing SELECT * when usually only a subset of fields are actually needed.
You have to specify the fields, if you want to build something dynamic the describeSObject call returns the metadata about all the fields for an object, so you can build the query from that.
I use the Force.com Explorer and within the schema filter you can click the checkbox next to the TableName and it will select all the fields and insert into your query window - I use this as a shortcut to typeing it all out - just copy and paste from the query window. Hope this helps.
In case anyone was looking for a C# approach, I was able to use reflection and come up with the following:
public IEnumerable<String> GetColumnsFor<T>()
{
return typeof(T).GetProperties(System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.Instance)
.Where(x => !Attribute.IsDefined(x, typeof(System.Xml.Serialization.XmlIgnoreAttribute))) // Exclude the ignored properties
.Where(x => x.DeclaringType != typeof(sObject)) // & Exclude inherited sObject propert(y/ies)
.Where(x => x.PropertyType.Namespace != typeof(Account).Namespace) // & Exclude properties storing references to other objects
.Select(x => x.Name);
}
It appears to work for the objects I've tested (and matches the columns generated by the API test). From there, it's about creating the query:
/* assume: this.server = new sForceService(); */
public IEnumerable<T> QueryAll<T>(params String[] columns)
where T : sObject
{
String soql = String.Format("SELECT {0} FROM {1}",
String.Join(", ", GetColumnsFor<T>()),
typeof(T).Name
);
this.service.QueryOptionsValue = new QueryOptions
{
batchsize = 250,
batchSizeSpecified = true
};
ICollection<T> results = new HashSet<T>();
try
{
Boolean done = false;
QueryResult queryResult = this.service.queryAll(soql);
while (!finished)
{
sObject[] records = queryResult.records;
foreach (sObject record in records)
{
T entity = entity as T;
if (entity != null)
{
results.Add(entity);
}
}
done &= queryResult.done;
if (!done)
{
queryResult = this.service.queryMode(queryResult.queryLocator);
}
}
}
catch (Exception ex)
{
throw; // your exception handling
}
return results;
}
For me it was the first time with Salesforce today and I came up with this in Java:
/**
* #param o any class that extends {#link SObject}, f.ex. Opportunity.class
* #return a list of all the objects of this type
*/
#SuppressWarnings("unchecked")
public <O extends SObject> List<O> getAll(Class<O> o) throws Exception {
// get the objectName; for example "Opportunity"
String objectName= o.getSimpleName();
// this will give us all the possible fields of this type of object
DescribeSObjectResult describeSObject = connection.describeSObject(objectName);
// making the query
String query = "SELECT ";
for (Field field : describeSObject.getFields()) { // add all the fields in the SELECT
query += field.getName() + ',';
}
// trim last comma
query = query.substring(0, query.length() - 1);
query += " FROM " + objectName;
SObject[] records = connection.query(query).getRecords();
List<O> result = new ArrayList<O>();
for (SObject record : records) {
result.add((O) record);
}
return result;
}
I used following to get complete records-
query_all("Select Id, Name From User_Profile__c")
To get complete fields of record, we have to mention those fields as mentioned here-
https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_select.htm
Hope will help you !!!