elixir

how to make a genserver to run with a frequency value Elixir

由 妖精的绣舞 提交于 2020-12-14 06:58:02
问题 I have seen many GenServer implementations, I am trying to create one with such specifications, But I am not sure its GenServer's use case. I have a state such as %{url: "abc.com/jpeg", name: "Camera1", id: :camera_one, frequency: 10} I have such 100 states, with different values, my use case contains on 5 steps. Start Each state as a Gen{ ? }. Send an HTTP request to that URL. Get results. Send another HTTP request with the data came from the first request. Put the Process to sleep. if the

how to make a genserver to run with a frequency value Elixir

由 丶灬走出姿态 提交于 2020-12-14 06:56:57
问题 I have seen many GenServer implementations, I am trying to create one with such specifications, But I am not sure its GenServer's use case. I have a state such as %{url: "abc.com/jpeg", name: "Camera1", id: :camera_one, frequency: 10} I have such 100 states, with different values, my use case contains on 5 steps. Start Each state as a Gen{ ? }. Send an HTTP request to that URL. Get results. Send another HTTP request with the data came from the first request. Put the Process to sleep. if the

TIOBE 12 月编程语言：Python 有望第四次成为年度语言！

由 送分小仙女□ 提交于 2020-12-10 05:46:41
须臾间，2020 年已经不足一个月。近日，编程语言社区 TIOBE 最新发布了 12 月编程语言排行榜。下个月月初，TIOBE 社区也即将揭晓 2020 年年度编程语言，谁又能摘得桂冠？ 毋庸置疑，能够获得年度编程语言称号的编程语言必然是 2020 年中最受关注以及流行度、涨幅最高的编程语言。对此，TIOBE 官方进行了相应的统计，在过去一年中，涨幅最大的为 Python，增幅 1.9%；其次为 C++ 0.71 %；R 语言增幅 0.6%、Groovy 增幅 0.69%。 综合来看，其他任何语言超过 Python 的机率都比较低。这意味着 Python 很有可能将于今年也是有史以来第四次获得年度编程语言称号的编程语言。 除了以上，值得关注的是，近几个月期间，TIOBE 榜单已然成为了 Python 与 Java 的追逐战战场。本月中，Java 虽然整体热度与趋势有所下滑，但还是再次超越了 Python 重回第二宝座。 其他编程语言排名 另外，本月编程语言榜单还有一些变化： Rust 从第 25 位上升到了 21 位； Julia 从 30 名上升到了第 26 名； Dart 从第 27 位下降到第 31 名； Kotlin 从第 36 位下降到第 40 位； TypeScript 从第 43 名上升一位，至第 42 名。 下面列出了完整的21-50名，因为是非官方发布的

Compare two lists to find date and time overlaps in Elixir

由 本秂侑毒 提交于 2020-12-02 00:20:42
问题 As part of some code that runs a booking system, we have a list of time_slots , which are tuples containing {start_time, end_time} . These are the available time slots that can be booked: time_slots = [ {~T[09:00:00], ~T[13:00:00]}, {~T[09:00:00], ~T[17:00:00]}, {~T[09:00:00], ~T[21:00:00]}, {~T[13:00:00], ~T[17:00:00]}, {~T[13:00:00], ~T[21:00:00]}, {~T[17:00:00], ~T[21:00:00]} ] Then we also have a list of bookings, which contains lists of tuples containing each {booking_start, booking_end}

Compare two lists to find date and time overlaps in Elixir

由 ╄→гoц情女王★ 提交于 2020-12-02 00:18:37
问题 As part of some code that runs a booking system, we have a list of time_slots , which are tuples containing {start_time, end_time} . These are the available time slots that can be booked: time_slots = [ {~T[09:00:00], ~T[13:00:00]}, {~T[09:00:00], ~T[17:00:00]}, {~T[09:00:00], ~T[21:00:00]}, {~T[13:00:00], ~T[17:00:00]}, {~T[13:00:00], ~T[21:00:00]}, {~T[17:00:00], ~T[21:00:00]} ] Then we also have a list of bookings, which contains lists of tuples containing each {booking_start, booking_end}

Compare two lists to find date and time overlaps in Elixir

由 假如想象 提交于 2020-12-02 00:12:45
问题 As part of some code that runs a booking system, we have a list of time_slots , which are tuples containing {start_time, end_time} . These are the available time slots that can be booked: time_slots = [ {~T[09:00:00], ~T[13:00:00]}, {~T[09:00:00], ~T[17:00:00]}, {~T[09:00:00], ~T[21:00:00]}, {~T[13:00:00], ~T[17:00:00]}, {~T[13:00:00], ~T[21:00:00]}, {~T[17:00:00], ~T[21:00:00]} ] Then we also have a list of bookings, which contains lists of tuples containing each {booking_start, booking_end}

Compare two lists to find date and time overlaps in Elixir

由 会有一股神秘感。 提交于 2020-12-02 00:12:36
问题 As part of some code that runs a booking system, we have a list of time_slots , which are tuples containing {start_time, end_time} . These are the available time slots that can be booked: time_slots = [ {~T[09:00:00], ~T[13:00:00]}, {~T[09:00:00], ~T[17:00:00]}, {~T[09:00:00], ~T[21:00:00]}, {~T[13:00:00], ~T[17:00:00]}, {~T[13:00:00], ~T[21:00:00]}, {~T[17:00:00], ~T[21:00:00]} ] Then we also have a list of bookings, which contains lists of tuples containing each {booking_start, booking_end}

Compare two lists to find date and time overlaps in Elixir

由 帅比萌擦擦* 提交于 2020-12-02 00:07:54
问题 As part of some code that runs a booking system, we have a list of time_slots , which are tuples containing {start_time, end_time} . These are the available time slots that can be booked: time_slots = [ {~T[09:00:00], ~T[13:00:00]}, {~T[09:00:00], ~T[17:00:00]}, {~T[09:00:00], ~T[21:00:00]}, {~T[13:00:00], ~T[17:00:00]}, {~T[13:00:00], ~T[21:00:00]}, {~T[17:00:00], ~T[21:00:00]} ] Then we also have a list of bookings, which contains lists of tuples containing each {booking_start, booking_end}

How to retrieve id from previous inserted table key by Ecto Multi

由 扶醉桌前 提交于 2020-11-29 19:21:27
问题 I would like to retrieve id from previous inserted table primary key by Ecto Multi. At first, I insert to A main table. then B details table needs A.id. I tried following code. Multi.new() |> Multi.insert(:insert, main) |> Multi.insert_all(:insert_all, B, details) |> Repo.transaction() However I have no idea how to retrieve A.id for insert table B. What I should do for it? 回答1: You can do something like the following example which creates a new User record and a new Email record (where the

How to retrieve id from previous inserted table key by Ecto Multi

由 走远了吗. 提交于 2020-11-29 19:20:16
问题 I would like to retrieve id from previous inserted table primary key by Ecto Multi. At first, I insert to A main table. then B details table needs A.id. I tried following code. Multi.new() |> Multi.insert(:insert, main) |> Multi.insert_all(:insert_all, B, details) |> Repo.transaction() However I have no idea how to retrieve A.id for insert table B. What I should do for it? 回答1: You can do something like the following example which creates a new User record and a new Email record (where the
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