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How do you create a new DateTime since Ecto.DateTime was deprecated?

How can I get the current operating system name in Elixir?How do I infer the current timezone in Elixir or Erlang?validate request input phoenix elixirExUnit - Running DB setup code once, before all testsWorking with datetime in ElixirConverting between Ecto.DateTime and DateTimePhoenix/Ecto - converting ISO string into utc_datetime primitive typeQuery has_many associations - Ecto, PhoenixFormat date with ElixirIs it possible to merge two separate ecto queries?

1

I currently have a Date and a Time that I would really like to combine into a DateTime struct.

Prior to Ecto 3 you could do this with Ecto.DateTime.from_date_and_time but in the new documentation since the Ecto Types were deprecated I can't find an equivalent function.

The function currently looks like:

def add_datetime(date_as_string) do
 (_, date = Date.from_iso8601(date)
 end_time = #T[23:59:59]

 datetime = datetime_add(Ecto.DateTime.from_date_and_time(date, end_time), -3, "day")
end

One of the constraints of this particular project is that I would like to avoid adding a third party library like Timex if at all possible but I am lost after looking at the current Elixir documentation.

elixir phoenix

share|improve this question

asked Mar 7 at 12:56

SorvahSorvah

1428

add a comment | 

1

I currently have a Date and a Time that I would really like to combine into a DateTime struct.

Prior to Ecto 3 you could do this with Ecto.DateTime.from_date_and_time but in the new documentation since the Ecto Types were deprecated I can't find an equivalent function.

The function currently looks like:

def add_datetime(date_as_string) do
 (_, date = Date.from_iso8601(date)
 end_time = #T[23:59:59]

 datetime = datetime_add(Ecto.DateTime.from_date_and_time(date, end_time), -3, "day")
end

One of the constraints of this particular project is that I would like to avoid adding a third party library like Timex if at all possible but I am lost after looking at the current Elixir documentation.

elixir phoenix

share|improve this question

asked Mar 7 at 12:56

SorvahSorvah

1428

add a comment | 

I currently have a Date and a Time that I would really like to combine into a DateTime struct.

Prior to Ecto 3 you could do this with Ecto.DateTime.from_date_and_time but in the new documentation since the Ecto Types were deprecated I can't find an equivalent function.

The function currently looks like:

def add_datetime(date_as_string) do
 (_, date = Date.from_iso8601(date)
 end_time = #T[23:59:59]

 datetime = datetime_add(Ecto.DateTime.from_date_and_time(date, end_time), -3, "day")
end

One of the constraints of this particular project is that I would like to avoid adding a third party library like Timex if at all possible but I am lost after looking at the current Elixir documentation.

elixir phoenix

share|improve this question

asked Mar 7 at 12:56

SorvahSorvah

1428

def add_datetime(date_as_string) do
 (_, date = Date.from_iso8601(date)
 end_time = #T[23:59:59]

 datetime = datetime_add(Ecto.DateTime.from_date_and_time(date, end_time), -3, "day")
end

share|improve this question

asked Mar 7 at 12:56

SorvahSorvah

1428

share|improve this question

asked Mar 7 at 12:56

SorvahSorvah

1428

asked Mar 7 at 12:56

SorvahSorvah

1428

asked Mar 7 at 12:56

SorvahSorvah

1428

2 Answers
2

active

oldest

votes

2

You can use DateTime.from_iso8601/2.

datetime_iso8601 = "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30"
:ok, datetime, offset_from_utc = DateTime.from_iso8601(datetime_iso8601)

Instead of +3:30 use your desired offset, or Z for UTC.

share|improve this answer

edited Mar 7 at 14:41

answered Mar 7 at 14:19

fhdhsnifhdhsni

790716

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  That worked superbly.Would you mind editing the answer to add the 'T' needed to make it a legal DateTime? so "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30" then I can accept it.
  
  – Sorvah
  Mar 7 at 14:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sorvah done :)
  
  – fhdhsni
  Mar 7 at 14:42
  
  

  
  
  
  

add a comment | 

0

For anyone finding this on Google you can also use a NaiveDateTime if you don't care about the timezone information:

datetime= NaiveDateTime.new(date_struct, time_struct)
|> DateTime.from_naive("Etc/UTC")

share|improve this answer

answered Mar 7 at 15:26

SorvahSorvah

1428

add a comment | 

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2

You can use DateTime.from_iso8601/2.

datetime_iso8601 = "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30"
:ok, datetime, offset_from_utc = DateTime.from_iso8601(datetime_iso8601)

Instead of +3:30 use your desired offset, or Z for UTC.

share|improve this answer

edited Mar 7 at 14:41

answered Mar 7 at 14:19

fhdhsnifhdhsni

790716

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  That worked superbly.Would you mind editing the answer to add the 'T' needed to make it a legal DateTime? so "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30" then I can accept it.
  
  – Sorvah
  Mar 7 at 14:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sorvah done :)
  
  – fhdhsni
  Mar 7 at 14:42
  
  

  
  
  
  

add a comment | 

2

You can use DateTime.from_iso8601/2.

datetime_iso8601 = "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30"
:ok, datetime, offset_from_utc = DateTime.from_iso8601(datetime_iso8601)

Instead of +3:30 use your desired offset, or Z for UTC.

share|improve this answer

edited Mar 7 at 14:41

answered Mar 7 at 14:19

fhdhsnifhdhsni

790716

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  That worked superbly.Would you mind editing the answer to add the 'T' needed to make it a legal DateTime? so "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30" then I can accept it.
  
  – Sorvah
  Mar 7 at 14:39
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sorvah done :)
  
  – fhdhsni
  Mar 7 at 14:42
  
  

  
  
  
  

add a comment | 

You can use DateTime.from_iso8601/2.

datetime_iso8601 = "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30"
:ok, datetime, offset_from_utc = DateTime.from_iso8601(datetime_iso8601)

Instead of +3:30 use your desired offset, or Z for UTC.

share|improve this answer

edited Mar 7 at 14:41

answered Mar 7 at 14:19

fhdhsnifhdhsni

790716

datetime_iso8601 = "#Date.to_iso8601(date)T#Time.to_iso8601(time)+03:30"
:ok, datetime, offset_from_utc = DateTime.from_iso8601(datetime_iso8601)

share|improve this answer

edited Mar 7 at 14:41

answered Mar 7 at 14:19

fhdhsnifhdhsni

790716

answered Mar 7 at 14:19

fhdhsnifhdhsni

790716

answered Mar 7 at 14:19

fhdhsnifhdhsni

790716

0

For anyone finding this on Google you can also use a NaiveDateTime if you don't care about the timezone information:

datetime= NaiveDateTime.new(date_struct, time_struct)
|> DateTime.from_naive("Etc/UTC")

share|improve this answer

answered Mar 7 at 15:26

SorvahSorvah

1428

add a comment | 

0

For anyone finding this on Google you can also use a NaiveDateTime if you don't care about the timezone information:

datetime= NaiveDateTime.new(date_struct, time_struct)
|> DateTime.from_naive("Etc/UTC")

share|improve this answer

answered Mar 7 at 15:26

SorvahSorvah

1428

add a comment | 

For anyone finding this on Google you can also use a NaiveDateTime if you don't care about the timezone information:

datetime= NaiveDateTime.new(date_struct, time_struct)
|> DateTime.from_naive("Etc/UTC")

share|improve this answer

answered Mar 7 at 15:26

SorvahSorvah

1428

datetime= NaiveDateTime.new(date_struct, time_struct)
|> DateTime.from_naive("Etc/UTC")

share|improve this answer

answered Mar 7 at 15:26

SorvahSorvah

1428

answered Mar 7 at 15:26

SorvahSorvah

1428

answered Mar 7 at 15:26

SorvahSorvah

1428