$data['custInfo']['mrs']=config('constants.enqNamePrefix')[$data['custInfo']['mrs_type_id']-1]['prefix'];
if (in_array($data['custInfo']['mrs_type_id'], [2,3,4])) {
$data['custInfo']['mrsDear']='Madam';
} else if ($data['custInfo']['mrs_type_id']==1) {
$data['custInfo']['mrsDear']='Sir';
} else {
$data['custInfo']['mrsDear']='Sir / Madam';
}
THis line gives me error:
$data['custInfo']['mrs']=config('constants.enqNamePrefix')[$data['custInfo']['mrs_type_id']-1]['prefix'];
I tried isset.
Related
Not sure why i'm getting this.. any suggestions would be grateful!
I ran into issues with my original coding where I had Firebase pod and Firebase Package.. so I started from scratch since that wasnt fixing itself.. now I get this.. and I am at a loss for how to resolve it.
static func fetchUsers() -> AnyPublisher<[UserProfile], Error> {
Future< [UserProfile], Error > { promise in
self.db.collection("Users")
.getDocuments { (snapshot, error) in
if let error = error {
promise(.failure(error))
return
}
guard let snapshot = snapshot else {
promise(.failure(FirebaseError.badSnapshot))
return
}
var users = [UserProfile]()
snapshot.documents.forEach { document in
print(users.count)
if let user = try? document.data(as: UserProfile.self){
if users.contains(where: { $0.id == user.id}) {return}
users.append(user)
} else {
print("Not working")
}
}
promise(.success(users))
}
}
.eraseToAnyPublisher()
}
I believe this is the syntax you're after:
var users = [UserProfile]()
users = snapshot.documents.compactMap { (document) -> UserProfile? in
if users.contains(where: { $0.id == user.id}) {
return nil
} else {
return try? document.data(as: UserProfile.self)
}
}
Also be aware that when you iterate something in Swift and encounter a false condition on an iteration, return will return out of the greater scope, not just that iteration. Therefore, use continue.
for x in y {
guard x > 0 else {
continue // continues loop
}
// ...
}
Looking at the example here at Message Controller for Pizza Example, if I want to populate Size or Kind based on some user input and make a call to the database, how would I do that?
So far as I know, there is not an easy way to populate the Enum at runtime.
It looks like this hasn't been implemented yet. I took a look inside https://github.com/Microsoft/BotBuilder/blob/master/CSharp/Library/FormFlow/FormBuilder.cs and found this:
internal static void TypePaths(Type type, string path, List<string> paths)
{
if (type.IsClass)
{
if (type == typeof(string))
{
paths.Add(path);
}
else if (type.IsIEnumerable())
{
var elt = type.GetGenericElementType();
if (elt.IsEnum)
{
paths.Add(path);
}
else
{
// TODO: What to do about enumerations of things other than enums?
}
}
else
{
FieldPaths(type, path, paths);
}
}
else if (type.IsEnum)
{
paths.Add(path);
}
else if (type == typeof(bool))
{
paths.Add(path);
}
else if (type.IsIntegral())
{
paths.Add(path);
}
else if (type.IsDouble())
{
paths.Add(path);
}
else if (type.IsNullable() && type.IsValueType)
{
paths.Add(path);
}
else if (type == typeof(DateTime))
{
paths.Add(path);
}
}
Notice the TODO about enumerations other than enums.
Outside of the FormBuilder we can use PromptDialog.Choice which takes an IEnumerable<> of your options.
It is possible to chain dialogs together, so you may have to split your FormDialog into two with the PromptDialog in-between.
Alternatively take a fork of BotBuilder and implement the TODO!
I'm trying to do validation on my form struct in a method that returns a bool, but I keep getting false even when it should be returning true..
If you look towards the end of the Validate method, you'll see I write validated := len(this.Errors) == 0 which should be making "validated" either true or false based on whether the Errors map has items or not, and then I return validated.
When I fill out my form accurately, there should be no errors yet I still get false when I should be getting true.
Can someone explain? Is this not how Go works?
form.go:
package models
import (
"../config"
"../util"
)
type Form struct {
Name string
Email string
Phone string
Message string
Thanks string
ErrorHandler
}
func (this *Form) Validate() bool {
this.Errors = make(map[string]string)
matched := util.MatchRegexp(".+#.+\\..+", this.Email)
if !util.IsEmpty(this.Email) {
if matched == false {
this.Errors["Email"] = config.EMAIL_INVALID
}
} else {
this.Errors["Email"] = config.EMAIL_EMPTY
}
if util.IsEmpty(this.Name) {
this.Errors["Name"] = config.NAME_EMPTY
}
if util.IsEmpty(this.Phone) {
this.Errors["Phone"] = config.PHONE_EMPTY
}
if util.IsEmpty(this.Message) {
this.Errors["Message"] = config.MESSAGE_EMPTY
}
validated := len(this.Errors) == 0
if validated {
this.Thanks = config.THANK_YOU
}
return validated
}
errorhandler.go:
package models
type ErrorHandler struct {
Errors map[string]string
}
func (this *ErrorHandler) HandleErr(err string) {
this.Errors = make(map[string]string)
this.Errors["Error"] = err
}
And this is where I try to call the Validate method -- in a function in my controller:
form := &models.Form{
Name: r.FormValue("name"),
Email: r.FormValue("email"),
Phone: r.FormValue("phone"),
Message: r.FormValue("message")}
if form.Validate() {
// This never runs because 'form.Validate()' is always false
}
I don't think the util.IsEmpty() is the culprit here.. just checks if the string is empty:
func IsEmpty(str string) bool {
return strings.TrimSpace(str) == ""
}
Any help would be appreciated!
It's best to debug this kind of problem with a log statement like:
log.Printf("form: %v", form)
before calling validate, so it's clear what the input data looks like.
Greetings, Philip
How to test wether a function in Swift 2.0 throws or not? How to assert that the correct ErrorType is thrown?
EDIT: Updated the code for Swift 4.1 (still valid with Swift 5.2)
Here's the latest Swift version of Fyodor Volchyok's answer who used XCTAssertThrowsError:
enum MyError: Error {
case someExpectedError
case someUnexpectedError
}
func functionThatThrows() throws {
throw MyError.someExpectedError
}
func testFunctionThatThrows() {
XCTAssertThrowsError(try functionThatThrows()) { error in
XCTAssertEqual(error as! MyError, MyError.someExpectedError)
}
}
If your Error enum has associated values, you can either have your Error enum conform to Equatable, or use the if case statement:
enum MyError: Error, Equatable {
case someExpectedError
case someUnexpectedError
case associatedValueError(value: Int)
}
func functionThatThrows() throws {
throw MyError.associatedValueError(value: 10)
}
// Equatable pattern: simplest solution if you have a simple associated value that can be tested inside 1 XCTAssertEqual
func testFunctionThatThrows() {
XCTAssertThrowsError(try functionThatThrows()) { error in
XCTAssertEqual(error as! MyError, MyError.associatedValueError(value: 10))
}
}
// if case pattern: useful if you have one or more associated values more or less complex (struct, classes...)
func testFunctionThatThrows() {
XCTAssertThrowsError(try functionThatThrows()) { error in
guard case MyError.associatedValueError(let value) = error else {
return XCTFail()
}
XCTAssertEqual(value, 10)
// if you have several values or if they require more complex tests, you can do it here
}
}
At least of Xcode 7.3 (maybe earlier) you could use built-in XCTAssertThrowsError():
XCTAssertThrowsError(try methodThatThrows())
If nothing is thrown during test you'll see something like this:
If you want to check if thrown error is of some concrete type, you could use errorHandler parameter of XCTAssertThrowsError():
enum Error: ErrorType {
case SomeExpectedError
case SomeUnexpectedError
}
func functionThatThrows() throws {
throw Error.SomeExpectedError
}
XCTAssertThrowsError(try functionThatThrows(), "some message") { (error) in
XCTAssertEqual(error as? Error, Error.SomeExpectedError)
}
Given the following functions and declarations:
enum SomeError: ErrorType {
case FifthError
case FirstError
}
func throwingFunction(x: Int) throws {
switch x {
case 1:
throw SomeError.FirstError
case 5:
throw SomeError.FifthError
default:
return
}
}
This function will throw a FifthError if 5 is given to the function and FirstError if 1 is given.
To test, that a function successfully runs the unit test could look as follows:
func testNotError() {
guard let _ = try? throwingFunction(2) else {
XCTFail("Error thrown")
return
}
}
The let _ may also be replaced by any other name, so you can further test the output.
To assert that a function throws, no matter what ErrorType the unit test could look like this:
func testError() {
if let _ = try? throwingFunction(5) {
XCTFail("No error thrown")
return
}
}
If you want to test for a specific ErrorType it's done with a do-catch-statement. This is not the best way compared to other languages.
You have to make sure that you...
return in the catch for the correct ErrorType
XCTFail() and return for all other catch
XCTFail() if no catch is executed
Given this requirements a test case could look like this:
func testFifthError() {
do {
try throwingFunction(5)
} catch SomeError.FifthError {
return
} catch {
XCTFail("Wrong error thrown")
return
}
XCTFail("No error thrown")
}
Swift 4.1 Error throwing Test for associated values
enum ParseError: Error, Equatable {
case unexpectedArgument(String)
}
func testWithNoSchemaButWithOneArgument() {
XCTAssertThrowsError(try Args(withSchema: "", andArguments: ["-x"])) { error in
XCTAssertEqual(error as? ParseError, ParseError.unexpectedArgument("Argument(s) -x unexpected."))
}
}
You can use this function:
func XCTAssertThrowsError<T, E: Error & Equatable>(
_ expression: #autoclosure () throws -> T,
error: E,
in file: StaticString = #file,
line: UInt = #line
) {
var thrownError: Error?
XCTAssertThrowsError(
try expression(),
file: file,
line: line) {
thrownError = $0
}
XCTAssertTrue(
thrownError is E,
"Unexpected error type: \(type(of: thrownError))",
file: file,
line: line
)
XCTAssertEqual(
thrownError as? E,
error,
file: file,
line: line
)
}
Example:
XCTAssertThrowsError(try funcThatThrowsSpecificError(), error: SpecificErrorEnum.someError)
I am trying to print out the value "username" from my coredata entity.
var request = NSFetchRequest(entityName: "Users")
request.returnsObjectsAsFaults = false
var results = context.executeFetchRequest(request, error: nil)
if (results?.count > 0) {
for result: AnyObject in results! {
println(result.username)
}
}
The line println(result.username) is giving me a compile error of 'AnyObject' does not have a member named 'username'.
You have to cast the array of managed object to the correct type:
for result in results! as [Users] {
println(result.username)
}
This assumes that you have created a managed object subclass for the "Users" entity.
You should also distinguish whether executeFetchRequest() returned nil
(i.e. the fetch request failed), or 0 (i.e. no objects found),
and use the error parameter:
var error : NSError?
if let results = context.executeFetchRequest(request, error: &error) {
if (results.count > 0) {
for result in results as [Users] {
println(result.username)
}
} else {
println("No Users")
}
} else {
println("Fetch failed: \(error)")
// Handle error ...
}
Update for Swift 2/Xcode 7 with try/catch error handling:
do {
let results = try context.executeFetchRequest(request) as! [Users]
if (results.count > 0) {
for result in results {
print(result.username)
}
} else {
print("No Users")
}
} catch let error as NSError {
// failure
print("Fetch failed: \(error.localizedDescription)")
}
Note that the forced cast as! [Users] is acceptable here.
The returned objects are always instances of the corresponding class as configured in the Core Data model inspector, otherwise you have
a programming error which should be detected early.
Martin's answer definitely lets you access the properties of your object, but the cast is forced. Like it or not, Swift's strong type system is the future. When returning results from a fetch request, you might consider testing for the type.
func executeFetchRequestT<T:AnyObject>(request:NSFetchRequest, managedObjectContext:NSManagedObjectContext, error: NSErrorPointer = nil) -> [T]? {
var localError: NSError? = nil
if let results:[AnyObject] = managedObjectContext.executeFetchRequest(request, error: &localError) {
if results.count > 0 {
if results[0] is T {
let casted:[T] = results as [T]
return .Some(casted)
}
if error != nil {
error.memory = NSError(domain: "error_domain", code: 0, userInfo: [NSLocalizedDescriptionKey: "Object in fetched results is not the expected type."])
}
} else if 0 == results.count {
return [T]() // just return an empty array
}
}
if error != nil && localError != nil {
error.memory = localError!
}
return .None
}
Using this approach you can type your results and get an error if the type is incorrect.
var fetchError:NSError? = nil
if let results:[Users] = executeFetchRequestT(fetchRequest, managedObjectContext: managedObjectContext, error: &fetchError) {
for user in results {
// access the results with confidence of the correct type
}
} else {
// should have an error condition, handle it appropriately
assertFailure("something bad happened")
}
Change your for loop to this
for result: AnyObject in results! {
if let user: AnyObject = result.valueForKey("username") {
println(user)
}
}
The fix is using valueForKey("String")