Is this a valid call/syntax in ruby?

-3

ClassA.ClassB.methodOne(param)

edited Nov 26 '18 at 5:13

sawa

131k29202301

asked Nov 22 '18 at 13:19

Mr. Sinko

3

It is a valid syntax, but only on the condition ClassB is actually a method (and not contstant/class).

– Marek Lipka
Nov 22 '18 at 13:23

2

It depends how you have defined ClassA, ClassB, methodOne and param. Yes, that is valid syntax that could be made to work. But no, that's probably the wrong way to write whatever it is you're actually trying to do.

– Tom Lord
Nov 22 '18 at 13:27

I would strongly advise providing more context of your code (a Minimal, Complete, and Verifiable example), so we can explain what a "good way" of doing whatever-it-is could look like.

– Tom Lord
Nov 22 '18 at 13:28

2

BTW I guess it's much easier to answer this question pasteing this snippet into irb console. If it triggers SyntaxError, it's not a valid syntax. If it triggers other error or no error at all, it's a valid syntax.

– Marek Lipka
Nov 22 '18 at 13:40

Here's what I want to do. def shift_request @message = @shift_request.shift.message() end shift_request belongs to shift shift has many shift_requests but I get an error: undefined method for 'shift' though its a class and not a method of the shift_request

– Mr. Sinko
Nov 22 '18 at 13:55

add a comment |

-3

Is this a valid call/syntax in ruby?

ClassA.ClassB.methodOne(param)

edited Nov 26 '18 at 5:13

sawa

131k29202301

asked Nov 22 '18 at 13:19

Mr. Sinko

3

It is a valid syntax, but only on the condition ClassB is actually a method (and not contstant/class).

– Marek Lipka
Nov 22 '18 at 13:23

2

It depends how you have defined ClassA, ClassB, methodOne and param. Yes, that is valid syntax that could be made to work. But no, that's probably the wrong way to write whatever it is you're actually trying to do.

– Tom Lord
Nov 22 '18 at 13:27

I would strongly advise providing more context of your code (a Minimal, Complete, and Verifiable example), so we can explain what a "good way" of doing whatever-it-is could look like.

– Tom Lord
Nov 22 '18 at 13:28

2

BTW I guess it's much easier to answer this question pasteing this snippet into irb console. If it triggers SyntaxError, it's not a valid syntax. If it triggers other error or no error at all, it's a valid syntax.

– Marek Lipka
Nov 22 '18 at 13:40

Here's what I want to do. def shift_request @message = @shift_request.shift.message() end shift_request belongs to shift shift has many shift_requests but I get an error: undefined method for 'shift' though its a class and not a method of the shift_request

– Mr. Sinko
Nov 22 '18 at 13:55

add a comment |

-3

Is this a valid call/syntax in ruby?

ClassA.ClassB.methodOne(param)

edited Nov 26 '18 at 5:13

sawa

131k29202301

asked Nov 22 '18 at 13:19

Mr. Sinko

Is this a valid call/syntax in ruby?

ClassA.ClassB.methodOne(param)

ruby

edited Nov 26 '18 at 5:13

sawa

131k29202301

asked Nov 22 '18 at 13:19

Mr. Sinko

edited Nov 26 '18 at 5:13

sawa

131k29202301

asked Nov 22 '18 at 13:19

Mr. Sinko

edited Nov 26 '18 at 5:13

sawa

131k29202301

edited Nov 26 '18 at 5:13

sawa

131k29202301

edited Nov 26 '18 at 5:13

sawa

131k29202301

asked Nov 22 '18 at 13:19

Mr. Sinko

asked Nov 22 '18 at 13:19

Mr. Sinko

asked Nov 22 '18 at 13:19

Mr. Sinko

3

It is a valid syntax, but only on the condition ClassB is actually a method (and not contstant/class).

– Marek Lipka
Nov 22 '18 at 13:23

2

It depends how you have defined ClassA, ClassB, methodOne and param. Yes, that is valid syntax that could be made to work. But no, that's probably the wrong way to write whatever it is you're actually trying to do.

– Tom Lord
Nov 22 '18 at 13:27

I would strongly advise providing more context of your code (a Minimal, Complete, and Verifiable example), so we can explain what a "good way" of doing whatever-it-is could look like.

– Tom Lord
Nov 22 '18 at 13:28

2

BTW I guess it's much easier to answer this question pasteing this snippet into irb console. If it triggers SyntaxError, it's not a valid syntax. If it triggers other error or no error at all, it's a valid syntax.

– Marek Lipka
Nov 22 '18 at 13:40

Here's what I want to do. def shift_request @message = @shift_request.shift.message() end shift_request belongs to shift shift has many shift_requests but I get an error: undefined method for 'shift' though its a class and not a method of the shift_request

– Mr. Sinko
Nov 22 '18 at 13:55

add a comment |

3

It is a valid syntax, but only on the condition ClassB is actually a method (and not contstant/class).

– Marek Lipka
Nov 22 '18 at 13:23

2

It depends how you have defined ClassA, ClassB, methodOne and param. Yes, that is valid syntax that could be made to work. But no, that's probably the wrong way to write whatever it is you're actually trying to do.

– Tom Lord
Nov 22 '18 at 13:27

I would strongly advise providing more context of your code (a Minimal, Complete, and Verifiable example), so we can explain what a "good way" of doing whatever-it-is could look like.

– Tom Lord
Nov 22 '18 at 13:28

2

BTW I guess it's much easier to answer this question pasteing this snippet into irb console. If it triggers SyntaxError, it's not a valid syntax. If it triggers other error or no error at all, it's a valid syntax.

– Marek Lipka
Nov 22 '18 at 13:40

Here's what I want to do. def shift_request @message = @shift_request.shift.message() end shift_request belongs to shift shift has many shift_requests but I get an error: undefined method for 'shift' though its a class and not a method of the shift_request

– Mr. Sinko
Nov 22 '18 at 13:55

It is a valid syntax, but only on the condition ClassB is actually a method (and not contstant/class).

– Marek Lipka
Nov 22 '18 at 13:23

It depends how you have defined ClassA, ClassB, methodOne and param. Yes, that is valid syntax that could be made to work. But no, that's probably the wrong way to write whatever it is you're actually trying to do.

– Tom Lord
Nov 22 '18 at 13:27

I would strongly advise providing more context of your code (a Minimal, Complete, and Verifiable example), so we can explain what a "good way" of doing whatever-it-is could look like.

– Tom Lord
Nov 22 '18 at 13:28

BTW I guess it's much easier to answer this question pasteing this snippet into irb console. If it triggers SyntaxError, it's not a valid syntax. If it triggers other error or no error at all, it's a valid syntax.

– Marek Lipka
Nov 22 '18 at 13:40

Here's what I want to do. def shift_request @message = @shift_request.shift.message() end shift_request belongs to shift shift has many shift_requests but I get an error: undefined method for 'shift' though its a class and not a method of the shift_request

– Mr. Sinko
Nov 22 '18 at 13:55

add a comment |

2 Answers
2

active

oldest

votes

You can write like this, NameSpace::ClassName.method_name(param)

Methods should be snakecased.

If you have a model called course/examination (folder/file) and in there method called grade_examination. You would do it like this:

# models/course/examination.rb

class Course::Examination < ApplicationRecord



  def self.grade_examination(answers)

    #grading code

  end

end

When you then call this method you write:

Course::Examination.grade_examination(answers)

answered Nov 22 '18 at 13:31

kallelundgren93

1189

add a comment |

As Marek Lipka and Tom Lord said, it depends if ClassA, ClassB, methodOne, and param are methods or a class. However, in ruby everything is an object. For example:

5 <= This is an object (Normally it would be an Integer and could not call a method)

time <= This is a method

puts <= Print command in ruby

All 3 combined could look like this:

5.time { puts "Hello you there."}

It will print 5 times Hello.

If you want to read more about ruby check out the documentation.
http://ruby-doc.org/

Hope this helps a bit.

answered Nov 22 '18 at 13:40

Kektuto

715

1

"it depends if ClassA, ClassB, methodOne, and param are methods or a class" – No, it doesn't. Those are all semantic distinctions, they have no bearing on whether something is valid syntax or not.

– Jörg W Mittag
Nov 22 '18 at 18:44

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

You can write like this, NameSpace::ClassName.method_name(param)

Methods should be snakecased.

If you have a model called course/examination (folder/file) and in there method called grade_examination. You would do it like this:

# models/course/examination.rb

class Course::Examination < ApplicationRecord



  def self.grade_examination(answers)

    #grading code

  end

end

When you then call this method you write:

Course::Examination.grade_examination(answers)

answered Nov 22 '18 at 13:31

kallelundgren93

1189

add a comment |

You can write like this, NameSpace::ClassName.method_name(param)

Methods should be snakecased.

If you have a model called course/examination (folder/file) and in there method called grade_examination. You would do it like this:

# models/course/examination.rb

class Course::Examination < ApplicationRecord



  def self.grade_examination(answers)

    #grading code

  end

end

When you then call this method you write:

Course::Examination.grade_examination(answers)

answered Nov 22 '18 at 13:31

kallelundgren93

1189

add a comment |

You can write like this, NameSpace::ClassName.method_name(param)

Methods should be snakecased.

If you have a model called course/examination (folder/file) and in there method called grade_examination. You would do it like this:

# models/course/examination.rb

class Course::Examination < ApplicationRecord



  def self.grade_examination(answers)

    #grading code

  end

end

When you then call this method you write:

Course::Examination.grade_examination(answers)

answered Nov 22 '18 at 13:31

kallelundgren93

1189

You can write like this, NameSpace::ClassName.method_name(param)

Methods should be snakecased.

If you have a model called course/examination (folder/file) and in there method called grade_examination. You would do it like this:

# models/course/examination.rb

class Course::Examination < ApplicationRecord



  def self.grade_examination(answers)

    #grading code

  end

end

When you then call this method you write:

Course::Examination.grade_examination(answers)

answered Nov 22 '18 at 13:31

kallelundgren93

1189

answered Nov 22 '18 at 13:31

kallelundgren93

1189

answered Nov 22 '18 at 13:31

kallelundgren93

1189

answered Nov 22 '18 at 13:31

kallelundgren93

1189

add a comment |

As Marek Lipka and Tom Lord said, it depends if ClassA, ClassB, methodOne, and param are methods or a class. However, in ruby everything is an object. For example:

5 <= This is an object (Normally it would be an Integer and could not call a method)

time <= This is a method

puts <= Print command in ruby

All 3 combined could look like this:

5.time { puts "Hello you there."}

It will print 5 times Hello.

If you want to read more about ruby check out the documentation.
http://ruby-doc.org/

Hope this helps a bit.

answered Nov 22 '18 at 13:40

Kektuto

715

1

"it depends if ClassA, ClassB, methodOne, and param are methods or a class" – No, it doesn't. Those are all semantic distinctions, they have no bearing on whether something is valid syntax or not.

– Jörg W Mittag
Nov 22 '18 at 18:44

add a comment |

As Marek Lipka and Tom Lord said, it depends if ClassA, ClassB, methodOne, and param are methods or a class. However, in ruby everything is an object. For example:

5 <= This is an object (Normally it would be an Integer and could not call a method)

time <= This is a method

puts <= Print command in ruby

All 3 combined could look like this:

5.time { puts "Hello you there."}

It will print 5 times Hello.

If you want to read more about ruby check out the documentation.
http://ruby-doc.org/

Hope this helps a bit.

answered Nov 22 '18 at 13:40

Kektuto

715

1

"it depends if ClassA, ClassB, methodOne, and param are methods or a class" – No, it doesn't. Those are all semantic distinctions, they have no bearing on whether something is valid syntax or not.

– Jörg W Mittag
Nov 22 '18 at 18:44

add a comment |

As Marek Lipka and Tom Lord said, it depends if ClassA, ClassB, methodOne, and param are methods or a class. However, in ruby everything is an object. For example:

5 <= This is an object (Normally it would be an Integer and could not call a method)

time <= This is a method

puts <= Print command in ruby

All 3 combined could look like this:

5.time { puts "Hello you there."}

It will print 5 times Hello.

If you want to read more about ruby check out the documentation.
http://ruby-doc.org/

Hope this helps a bit.

answered Nov 22 '18 at 13:40

Kektuto

715

As Marek Lipka and Tom Lord said, it depends if ClassA, ClassB, methodOne, and param are methods or a class. However, in ruby everything is an object. For example:

5 <= This is an object (Normally it would be an Integer and could not call a method)

time <= This is a method

puts <= Print command in ruby

All 3 combined could look like this:

5.time { puts "Hello you there."}

It will print 5 times Hello.

If you want to read more about ruby check out the documentation.
http://ruby-doc.org/

Hope this helps a bit.

answered Nov 22 '18 at 13:40

Kektuto

715

answered Nov 22 '18 at 13:40

Kektuto

715

answered Nov 22 '18 at 13:40

Kektuto

715

answered Nov 22 '18 at 13:40

Kektuto

715

1

"it depends if ClassA, ClassB, methodOne, and param are methods or a class" – No, it doesn't. Those are all semantic distinctions, they have no bearing on whether something is valid syntax or not.

– Jörg W Mittag
Nov 22 '18 at 18:44

add a comment |

1

"it depends if ClassA, ClassB, methodOne, and param are methods or a class" – No, it doesn't. Those are all semantic distinctions, they have no bearing on whether something is valid syntax or not.

– Jörg W Mittag
Nov 22 '18 at 18:44

"it depends if ClassA, ClassB, methodOne, and param are methods or a class" – No, it doesn't. Those are all semantic distinctions, they have no bearing on whether something is valid syntax or not.

– Jörg W Mittag
Nov 22 '18 at 18:44

add a comment |

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