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Dapper

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  • R realJSOP

    I looked in NuGet, and there's a crapload of dapper-related stuff in there. What's worth getting?

    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
    -----
    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
    -----
    When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

    Richard DeemingR Offline
    Richard DeemingR Offline
    Richard Deeming
    wrote on last edited by
    #23

    I've only used the core package[^] so far. Dapper.Contrib[^] looks interesting, and is maintained by the same team: Dapper.Contrib - more extensions for dapper[^]


    "These people looked deep within my soul and assigned me a number based on the order in which I joined." - Homer

    "These people looked deep within my soul and assigned me a number based on the order in which I joined" - Homer

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    • S Slacker007

      Fair enough, John.

      N Offline
      N Offline
      Nish Nishant
      wrote on last edited by
      #24

      BTW, a few folks claim that Dapper's faster than EF6 - so I guess there's that.

      Regards, Nish


      Website: www.voidnish.com Blog: voidnish.wordpress.com

      S S J 3 Replies Last reply
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      • N Nish Nishant

        BTW, a few folks claim that Dapper's faster than EF6 - so I guess there's that.

        Regards, Nish


        Website: www.voidnish.com Blog: voidnish.wordpress.com

        S Offline
        S Offline
        Sascha Lefevre
        wrote on last edited by
        #25

        It most certainly is - but that's apples and oranges.

        If the brain were so simple we could understand it, we would be so simple we couldn't. — Lyall Watson

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        • N Nish Nishant

          BTW, a few folks claim that Dapper's faster than EF6 - so I guess there's that.

          Regards, Nish


          Website: www.voidnish.com Blog: voidnish.wordpress.com

          S Offline
          S Offline
          Slacker007
          wrote on last edited by
          #26

          I have heard of Dapper, and that is about all. I have the most experience with EF but I am not going on the record to say that it is the best. I'm sure there are applications best suited for Dapper. I found this to be interesting. The conclusion at the end is the most important. Dapper looks to be faster in a lot of respects. Interesting. Don't Panic Labs – Speed Comparison: Dapper vs Entity Framework[^] Looks like Stackoverflow uses Dapper.

          A 1 Reply Last reply
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          • N Nish Nishant

            BTW, a few folks claim that Dapper's faster than EF6 - so I guess there's that.

            Regards, Nish


            Website: www.voidnish.com Blog: voidnish.wordpress.com

            J Offline
            J Offline
            Jorgen Andersson
            wrote on last edited by
            #27

            The difference is big! If you want faster you have to run your own, like I did.

            Wrong is evil and must be defeated. - Jeff Ello

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            • R realJSOP

              Slacker007 wrote:

              EF 6 has ... Any reason why you can't use that?

              It's from Microsoft.

              ".45 ACP - because shooting twice is just silly" - JSOP, 2010
              -----
              You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
              -----
              When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

              D Offline
              D Offline
              David Crow
              wrote on last edited by
              #28

              Aren't .NET and Mono both from Microsoft, or are you targeting some other platform?

              "One man's wage rise is another man's price increase." - Harold Wilson

              "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

              "You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

              R 1 Reply Last reply
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              • R realJSOP

                Does anyone here use the Dapper ORM?

                ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                -----
                You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                -----
                When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                S Offline
                S Offline
                stoneyowl2
                wrote on last edited by
                #29

                Not that one, but I have used something called 'PetaPoco', which is kinda based on Dapper. The nice thing, to me, is it is a single .cs file that can be included right in you solution. He also has a later version that is a normal assembly. You will probably need to google 'PetaPoco' to find it.

                C 1 Reply Last reply
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                • K Kent Sharkey

                  I haven't used it, but I understand that there is an article in next month's MSDN Magazine about it (should be on the site on Monday). Julie Lerman (she of much EF writing) liked it.

                  TTFN - Kent

                  N Offline
                  N Offline
                  Nagy Vilmos
                  wrote on last edited by
                  #30

                  If Julie is s fan then that is a pretty big endorsement.

                  veni bibi saltavi

                  1 Reply Last reply
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                  • R realJSOP

                    Does anyone here use the Dapper ORM?

                    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                    -----
                    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                    -----
                    When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                    P Offline
                    P Offline
                    pt1401
                    wrote on last edited by
                    #31

                    I've used it a lot. It's excellent, but in large projects its best used with some form of POCO-generator such as Codesmith to auto-generate your DAL classes on your build server. Dapper is very fast and, even more importantly IMO, it doesn't get in your way.

                    1 Reply Last reply
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                    • R realJSOP

                      Does anyone here use the Dapper ORM?

                      ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                      -----
                      You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                      -----
                      When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                      S Offline
                      S Offline
                      Ste S
                      wrote on last edited by
                      #32

                      I've used Dapper a few times. I really like it and as others have said it generally gets out of the way and works well at mapping your sql to an object or collection of objects. I use it with Dapper extensions which makes simple selecting/updating etc pretty simple. I invested a lot of time in learning EF and it was hard to make the move but honestly I've never found a need to go back to using EF. EF seems overly complex, at least for my needs and I fail to see a good reason for using EF over a micro orm like Dapper or PetaPoco (which i also like).

                      1 Reply Last reply
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                      • R realJSOP

                        C# is simply a copy of java, but without the cross-platform capabilities.

                        ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                        -----
                        You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                        -----
                        When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                        L Offline
                        L Offline
                        Lost User
                        wrote on last edited by
                        #33

                        I just finished a small project running ASP.NET 5 on a Docker container running Ubunutu hosted in Azure :rose: Exciting times ahead I think :)

                        The whole thing's rigged to blow, touch those tanks and "boooom"!

                        1 Reply Last reply
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                        • R realJSOP

                          Slacker007 wrote:

                          Well, that is not really a good reason.

                          It's always been a good reason in the past. And I like living in the past.

                          ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                          -----
                          You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                          -----
                          When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                          L Offline
                          L Offline
                          Lost User
                          wrote on last edited by
                          #34

                          What do you use instead of Visual Studio?

                          The whole thing's rigged to blow, touch those tanks and "boooom"!

                          R 1 Reply Last reply
                          0
                          • L Lost User

                            What do you use instead of Visual Studio?

                            The whole thing's rigged to blow, touch those tanks and "boooom"!

                            R Offline
                            R Offline
                            realJSOP
                            wrote on last edited by
                            #35

                            I use edlin to edit my code, and manually compile everything (yeah it takes a lot longer, but it's hella efficient code).

                            ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                            -----
                            You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                            -----
                            When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                            L 1 Reply Last reply
                            0
                            • R realJSOP

                              I use edlin to edit my code, and manually compile everything (yeah it takes a lot longer, but it's hella efficient code).

                              ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                              -----
                              You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                              -----
                              When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                              L Offline
                              L Offline
                              Lost User
                              wrote on last edited by
                              #36

                              Wow, that looks like the hard way of doing things[^] :laugh: I guess you're paid by the hour? :laugh:

                              The whole thing's rigged to blow, touch those tanks and "boooom"!

                              R 1 Reply Last reply
                              0
                              • L Lost User

                                Wow, that looks like the hard way of doing things[^] :laugh: I guess you're paid by the hour? :laugh:

                                The whole thing's rigged to blow, touch those tanks and "boooom"!

                                R Offline
                                R Offline
                                realJSOP
                                wrote on last edited by
                                #37

                                Most things that are worth doing start out hard. And that's true for so many things in life. :)

                                ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                -----
                                You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                -----
                                When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                1 Reply Last reply
                                0
                                • D David Crow

                                  Aren't .NET and Mono both from Microsoft, or are you targeting some other platform?

                                  "One man's wage rise is another man's price increase." - Harold Wilson

                                  "Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

                                  "You can easily judge the character of a man by how he treats those who can do nothing for him." - James D. Miles

                                  R Offline
                                  R Offline
                                  realJSOP
                                  wrote on last edited by
                                  #38

                                  I was just making a comment. I'm not targeting anything.

                                  ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                  -----
                                  You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                  -----
                                  When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                  1 Reply Last reply
                                  0
                                  • R realJSOP

                                    Does anyone here use the Dapper ORM?

                                    ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                    -----
                                    You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                    -----
                                    When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                    M Offline
                                    M Offline
                                    Mark Jerzykowski
                                    wrote on last edited by
                                    #39

                                    I use it. We wrote a slightly bigger ORM thing to go on top of it: Dashing[^] And yes, much time was spent on the name.

                                    1 Reply Last reply
                                    0
                                    • S Slacker007

                                      I have heard of Dapper, and that is about all. I have the most experience with EF but I am not going on the record to say that it is the best. I'm sure there are applications best suited for Dapper. I found this to be interesting. The conclusion at the end is the most important. Dapper looks to be faster in a lot of respects. Interesting. Don't Panic Labs – Speed Comparison: Dapper vs Entity Framework[^] Looks like Stackoverflow uses Dapper.

                                      A Offline
                                      A Offline
                                      andegre
                                      wrote on last edited by
                                      #40

                                      Dapper is considerably faster than EF. And I also believe that it was written BY Stackoverflow. GitHub - StackExchange/dapper-dot-net: Dapper - a simple object mapper for .Net[^]

                                      S 1 Reply Last reply
                                      0
                                      • N Nish Nishant

                                        Dapper is written in C# which is from Microsoft too :-)

                                        Regards, Nish


                                        Website: www.voidnish.com Blog: voidnish.wordpress.com

                                        S Offline
                                        S Offline
                                        Snorri Kristjansson
                                        wrote on last edited by
                                        #41

                                        He he - there is no escaping - is there?

                                        1 Reply Last reply
                                        0
                                        • R realJSOP

                                          Does anyone here use the Dapper ORM?

                                          ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                                          -----
                                          You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                                          -----
                                          When you pry the gun from my cold dead hands, be careful - the barrel will be very hot. - JSOP, 2013

                                          C Offline
                                          C Offline
                                          Caspian Canuck
                                          wrote on last edited by
                                          #42

                                          I've been using Dapper's spinoff NPoco for a couple of years in a large work project and it's worked out mostly great. The good: 1. Lightning fast, just a fraction slower than bare-bones ADO.NET. 2. No surprise SQL, you know exactly what SQL is sent to the server because you wrote it yourself (unless it's a simple single-table CRUD operation that NPoco generates itself). 3. Latest versions come with Linq expressions support. Back when our project got started there was no Linq support in NPoco and I ended up writing my own Linq-like repository wrapper. (I've made several other customizations to NPoco not all of which have made it into the official codebase, so I can't upgrade.) The bad: 1. No support for the JOIN syntax in NPoco's Linq implementation. Depending on how you look at it, this can be either a deficiency or a blessing (given how ugly SQL can get with auto-generated joins in EF and other full-feature ORMs). 2. The API can be a little confusing with too many overloaded methods and methods with different names but similar functionality.

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