Type of expression is ambiguous without more context

Question

kumar007 OP

Created Oct ’15

Replies 2

Boosts 0

Views 12k

Participants 3

var current_date = NSDate()

var dateFormatter = NSDateFormatter()

dateFormatter.dateFormat = "YYYY-MM-dd HH:mm:ss"

var strDate = dateFormatter.stringFromDate(current_date)

dateFormatter.dateFromString(strDate)

var fname = personalFname.text

var lname = personalLname.text

var email = personalEmail.text

var gender = ""

var date = convDate

if personalGenderSwitch.on {

gender = "Female"

} else {

gender = "Male"

}

var country_code = personalCountryCode.text

var phone = personalPhoneNo.text

if personal_id == nil {

if let err = SD.executeChange("INSERT INTO personal_info(user_id, fname, lname, gender, dob, country_code, phone, created_at) values (?,?,?,?,?,?,?,?)", withArgs: [email, fname, lname, gender, date, country_code, phone, strDate]) {

let alert = UIAlertView()

alert.title = "Table"

alert.message = "Error inserting"

alert.addButtonWithTitle("Ok")

alert.show()

} else{

let alert = UIAlertView()

alert.title = "Table"

alert.message = "successfully inserted"

alert.addButtonWithTitle("Ok")

alert.show()

}

} else {

if let err_update = SD.executeChange("UPDATE personal_info SET fname = ?, lname = ?, gender = ?, dob = ?, country_code = ?, phone = ?, updated_at = ? WHERE personal_info_id = ?", withArgs: [fname, lname, gender, date, country_code, phone, strDate, personal_id!]) {

let alert = UIAlertView()

alert.title = "Table"

alert.message = "Error updating"

alert.addButtonWithTitle("Ok")

alert.show()

} else {

let alert = UIAlertView()

alert.title = "Table"

alert.message = "Record updated"

alert.addButtonWithTitle("Ok")

alert.show()

}

why am i getting the error "Type of expression is ambiguous without more context" in the place of withArgs[ ] ?? i got this error when i recently updated the xcode to 7.0.1 from version 6.4

Boost

Answer 1

jsslai OP

Oct ’15

var fname = personalFname.text
var lname = personalLname.text
var email = personalEmail.text

If these are UITextField's, they return Optional Strings. So the fname, lname and email become

var fname: String? = personalFname.text
var lname: String? = personalLname.text
var email: String? = personalEmail.text

I guess withArgs expects array of Strings. So you have to for example use empty strings if UITextField's text property is nil.

var fname = personalFname.text ?? ""
var lname = personalLname.text ?? ""
var email = personalEmail.text ?? ""

0

Answer 2

DTS Engineer OP

Apple

Oct ’15

Regardless of everything else, your date formatter code has problems. QA1480 NSDateFormatter and Internet Dates explains the issue.

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Apple Developer Relations, Developer Technical Support, Core OS/Hardware

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