Error while trying to build a send button

I'm currently trying to build a chat feature, but I get some errors when trying to implement a send button. The errors I get are:
**

Binary operator '!=' cannot be applied to operands of type 'UITextField?' 'String'

and

Value of type 'DataService' has no member 'createNewMessage'

My code:

@IBAction func sendButton(_ sender: Any) {

    self.chatTextfield.resignFirstResponder()

    if chatTextfield != "" {

        if let user = Auth.auth().currentUser {

            DataService.dataService.createNewMessage(user.uid, roomId: roomId, textMessage: chatTextfield.text!)

        }

    }

}

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

asked Nov 21 '18 at 12:52

potatoonion

Is the DataService class a Firebase class?
– Rakesha Shastri
Nov 21 '18 at 13:00

@RakeshaShastri yes
– potatoonion
Nov 21 '18 at 13:01

Is there any documentation for that?
– Rakesha Shastri
Nov 21 '18 at 13:05

I tried writing DataService.dataservice. but only createNewRoom showed up and not createNewMessage
– potatoonion
Nov 21 '18 at 13:08

There is no class in the Firebase SDK that has createNewMessage and/or createNewRoom methods, so it seems that you created this class yourself or copied it from somewhere. I recommend opening a new question for this problem (since Rakesha already answered for your other question), and creating a minimal, complete, verifiable example (read the link please, it's quite useful when asking for help with code-related questions) in there.
– Frank van Puffelen
Nov 21 '18 at 14:32

add a comment |

I'm currently trying to build a chat feature, but I get some errors when trying to implement a send button. The errors I get are:
**

Binary operator '!=' cannot be applied to operands of type 'UITextField?' 'String'

and

Value of type 'DataService' has no member 'createNewMessage'

My code:

@IBAction func sendButton(_ sender: Any) {

    self.chatTextfield.resignFirstResponder()

    if chatTextfield != "" {

        if let user = Auth.auth().currentUser {

            DataService.dataService.createNewMessage(user.uid, roomId: roomId, textMessage: chatTextfield.text!)

        }

    }

}

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

asked Nov 21 '18 at 12:52

potatoonion

Is the DataService class a Firebase class?
– Rakesha Shastri
Nov 21 '18 at 13:00

@RakeshaShastri yes
– potatoonion
Nov 21 '18 at 13:01

Is there any documentation for that?
– Rakesha Shastri
Nov 21 '18 at 13:05

I tried writing DataService.dataservice. but only createNewRoom showed up and not createNewMessage
– potatoonion
Nov 21 '18 at 13:08

There is no class in the Firebase SDK that has createNewMessage and/or createNewRoom methods, so it seems that you created this class yourself or copied it from somewhere. I recommend opening a new question for this problem (since Rakesha already answered for your other question), and creating a minimal, complete, verifiable example (read the link please, it's quite useful when asking for help with code-related questions) in there.
– Frank van Puffelen
Nov 21 '18 at 14:32

add a comment |

I'm currently trying to build a chat feature, but I get some errors when trying to implement a send button. The errors I get are:
**

Binary operator '!=' cannot be applied to operands of type 'UITextField?' 'String'

and

Value of type 'DataService' has no member 'createNewMessage'

My code:

@IBAction func sendButton(_ sender: Any) {

    self.chatTextfield.resignFirstResponder()

    if chatTextfield != "" {

        if let user = Auth.auth().currentUser {

            DataService.dataService.createNewMessage(user.uid, roomId: roomId, textMessage: chatTextfield.text!)

        }

    }

}

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

asked Nov 21 '18 at 12:52

potatoonion

I'm currently trying to build a chat feature, but I get some errors when trying to implement a send button. The errors I get are:
**

Binary operator '!=' cannot be applied to operands of type 'UITextField?' 'String'

and

Value of type 'DataService' has no member 'createNewMessage'

My code:

@IBAction func sendButton(_ sender: Any) {

    self.chatTextfield.resignFirstResponder()

    if chatTextfield != "" {

        if let user = Auth.auth().currentUser {

            DataService.dataService.createNewMessage(user.uid, roomId: roomId, textMessage: chatTextfield.text!)

        }

    }

}

swift firebase

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

asked Nov 21 '18 at 12:52

potatoonion

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

asked Nov 21 '18 at 12:52

potatoonion

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

edited Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

asked Nov 21 '18 at 12:52

potatoonion

asked Nov 21 '18 at 12:52

potatoonion

asked Nov 21 '18 at 12:52

potatoonion

Is the DataService class a Firebase class?
– Rakesha Shastri
Nov 21 '18 at 13:00

@RakeshaShastri yes
– potatoonion
Nov 21 '18 at 13:01

Is there any documentation for that?
– Rakesha Shastri
Nov 21 '18 at 13:05

I tried writing DataService.dataservice. but only createNewRoom showed up and not createNewMessage
– potatoonion
Nov 21 '18 at 13:08

There is no class in the Firebase SDK that has createNewMessage and/or createNewRoom methods, so it seems that you created this class yourself or copied it from somewhere. I recommend opening a new question for this problem (since Rakesha already answered for your other question), and creating a minimal, complete, verifiable example (read the link please, it's quite useful when asking for help with code-related questions) in there.
– Frank van Puffelen
Nov 21 '18 at 14:32

add a comment |

Is the DataService class a Firebase class?
– Rakesha Shastri
Nov 21 '18 at 13:00

@RakeshaShastri yes
– potatoonion
Nov 21 '18 at 13:01

Is there any documentation for that?
– Rakesha Shastri
Nov 21 '18 at 13:05

I tried writing DataService.dataservice. but only createNewRoom showed up and not createNewMessage
– potatoonion
Nov 21 '18 at 13:08

There is no class in the Firebase SDK that has createNewMessage and/or createNewRoom methods, so it seems that you created this class yourself or copied it from somewhere. I recommend opening a new question for this problem (since Rakesha already answered for your other question), and creating a minimal, complete, verifiable example (read the link please, it's quite useful when asking for help with code-related questions) in there.
– Frank van Puffelen
Nov 21 '18 at 14:32

Is the DataService class a Firebase class?
– Rakesha Shastri
Nov 21 '18 at 13:00

@RakeshaShastri yes
– potatoonion
Nov 21 '18 at 13:01

Is there any documentation for that?
– Rakesha Shastri
Nov 21 '18 at 13:05

I tried writing DataService.dataservice. but only createNewRoom showed up and not createNewMessage
– potatoonion
Nov 21 '18 at 13:08

There is no class in the Firebase SDK that has createNewMessage and/or createNewRoom methods, so it seems that you created this class yourself or copied it from somewhere. I recommend opening a new question for this problem (since Rakesha already answered for your other question), and creating a minimal, complete, verifiable example (read the link please, it's quite useful when asking for help with code-related questions) in there.
– Frank van Puffelen
Nov 21 '18 at 14:32

add a comment |

1 Answer
1

active

oldest

votes

The first error is because you are comparing UITextField object with a String. You should be comparing the text in the text field instead.

if chatTextfield.text != "" {

    // do something

}

Or in a more Swifty way, like this,

if !chatTextfield.text!.isEmpty {

    // do something

}

My knowledge in Firebase is next to none. So, i can't help you much with the second one. From the error, it is pretty clear that there is no method by that name. So, if you just got the method signature wrong, you should write DataService.dataService. and let firebase show you suggestions and pick the appropriate one.

edited Nov 22 '18 at 7:17

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

thank you! the first problem got solved. I tried the DataService.dataService. but only createNewRoom showed up and not CreateNewMessage
– potatoonion
Nov 21 '18 at 13:07

@potatoonion where did you see this createNewMessage method?
– Rakesha Shastri
Nov 21 '18 at 13:08

I read somewhere yesterday night that's how to create a message guess it was wrong, is there another way to create a message?
– potatoonion
Nov 21 '18 at 13:10

I'm not familiar with firebase. You should look up their documentation.
– Rakesha Shastri
Nov 21 '18 at 13:15

yea same, I'm kinda new to firebase too. I don't seem to still understand their documentation about creating new message tho :(
– potatoonion
Nov 21 '18 at 13:28

add a comment |

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1 Answer
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active

oldest

votes

1 Answer
1

active

oldest

votes

The first error is because you are comparing UITextField object with a String. You should be comparing the text in the text field instead.

if chatTextfield.text != "" {

    // do something

}

Or in a more Swifty way, like this,

if !chatTextfield.text!.isEmpty {

    // do something

}

edited Nov 22 '18 at 7:17

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

thank you! the first problem got solved. I tried the DataService.dataService. but only createNewRoom showed up and not CreateNewMessage
– potatoonion
Nov 21 '18 at 13:07

@potatoonion where did you see this createNewMessage method?
– Rakesha Shastri
Nov 21 '18 at 13:08

I read somewhere yesterday night that's how to create a message guess it was wrong, is there another way to create a message?
– potatoonion
Nov 21 '18 at 13:10

I'm not familiar with firebase. You should look up their documentation.
– Rakesha Shastri
Nov 21 '18 at 13:15

yea same, I'm kinda new to firebase too. I don't seem to still understand their documentation about creating new message tho :(
– potatoonion
Nov 21 '18 at 13:28

add a comment |

The first error is because you are comparing UITextField object with a String. You should be comparing the text in the text field instead.

if chatTextfield.text != "" {

    // do something

}

Or in a more Swifty way, like this,

if !chatTextfield.text!.isEmpty {

    // do something

}

edited Nov 22 '18 at 7:17

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

thank you! the first problem got solved. I tried the DataService.dataService. but only createNewRoom showed up and not CreateNewMessage
– potatoonion
Nov 21 '18 at 13:07

@potatoonion where did you see this createNewMessage method?
– Rakesha Shastri
Nov 21 '18 at 13:08

I read somewhere yesterday night that's how to create a message guess it was wrong, is there another way to create a message?
– potatoonion
Nov 21 '18 at 13:10

I'm not familiar with firebase. You should look up their documentation.
– Rakesha Shastri
Nov 21 '18 at 13:15

yea same, I'm kinda new to firebase too. I don't seem to still understand their documentation about creating new message tho :(
– potatoonion
Nov 21 '18 at 13:28

add a comment |

The first error is because you are comparing UITextField object with a String. You should be comparing the text in the text field instead.

if chatTextfield.text != "" {

    // do something

}

Or in a more Swifty way, like this,

if !chatTextfield.text!.isEmpty {

    // do something

}

edited Nov 22 '18 at 7:17

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

The first error is because you are comparing UITextField object with a String. You should be comparing the text in the text field instead.

if chatTextfield.text != "" {

    // do something

}

Or in a more Swifty way, like this,

if !chatTextfield.text!.isEmpty {

    // do something

}

edited Nov 22 '18 at 7:17

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

edited Nov 22 '18 at 7:17

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

answered Nov 21 '18 at 13:02

Rakesha Shastri

6,85921232

thank you! the first problem got solved. I tried the DataService.dataService. but only createNewRoom showed up and not CreateNewMessage
– potatoonion
Nov 21 '18 at 13:07

@potatoonion where did you see this createNewMessage method?
– Rakesha Shastri
Nov 21 '18 at 13:08

I read somewhere yesterday night that's how to create a message guess it was wrong, is there another way to create a message?
– potatoonion
Nov 21 '18 at 13:10

I'm not familiar with firebase. You should look up their documentation.
– Rakesha Shastri
Nov 21 '18 at 13:15

yea same, I'm kinda new to firebase too. I don't seem to still understand their documentation about creating new message tho :(
– potatoonion
Nov 21 '18 at 13:28

add a comment |

thank you! the first problem got solved. I tried the DataService.dataService. but only createNewRoom showed up and not CreateNewMessage
– potatoonion
Nov 21 '18 at 13:07

@potatoonion where did you see this createNewMessage method?
– Rakesha Shastri
Nov 21 '18 at 13:08

I read somewhere yesterday night that's how to create a message guess it was wrong, is there another way to create a message?
– potatoonion
Nov 21 '18 at 13:10

I'm not familiar with firebase. You should look up their documentation.
– Rakesha Shastri
Nov 21 '18 at 13:15

yea same, I'm kinda new to firebase too. I don't seem to still understand their documentation about creating new message tho :(
– potatoonion
Nov 21 '18 at 13:28

thank you! the first problem got solved. I tried the DataService.dataService. but only createNewRoom showed up and not CreateNewMessage
– potatoonion
Nov 21 '18 at 13:07

@potatoonion where did you see this createNewMessage method?
– Rakesha Shastri
Nov 21 '18 at 13:08

I read somewhere yesterday night that's how to create a message guess it was wrong, is there another way to create a message?
– potatoonion
Nov 21 '18 at 13:10

I'm not familiar with firebase. You should look up their documentation.
– Rakesha Shastri
Nov 21 '18 at 13:15

yea same, I'm kinda new to firebase too. I don't seem to still understand their documentation about creating new message tho :(
– potatoonion
Nov 21 '18 at 13:28

add a comment |

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