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  3. Code First, do you like it?

Code First, do you like it?

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  • S Slacker007

    Learn ASP.NET Online – Microsoft Virtual Academy[^] Under "Creating and configuring models" --> Creating models --> around 23:40 but start at around 22:00 to get some intro context. I heard that the SNAFU they had during the demo happens a lot to people, especially those who are trying to get up to speed with "code first".

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    Sascha Lefevre
    wrote on last edited by
    #44

    Thank you! Will take a look..

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

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    • S Slacker007

      Light roast (mild flavor), has more caffeine than manly, dark roast. Just saying. :-D Although, I prefer the flavor of a medium roast to a Sumatra, etc..

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      Frank Alviani
      wrote on last edited by
      #45

      Definitely prefer a Sumatra or French Roast.:suss:

      My long term goal is to live forever. So far, so good...

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      • F Frank Alviani

        Definitely prefer a Sumatra or French Roast.:suss:

        My long term goal is to live forever. So far, so good...

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        jeron1
        wrote on last edited by
        #46

        Whilst I prefer the one's that on sale. :)

        "the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

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        • S Slacker007

          Link to comment with link to video [^]

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          Lost User
          wrote on last edited by
          #47

          Tx :)

          Bastard Programmer from Hell :suss: If you can't read my code, try converting it here[^][](X-Clacks-Overhead: GNU Terry Pratchett)

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          • S Slacker007

            Avijnata wrote:

            In more than 50 percent of the cases.

            You have done statistical analysis on this? :laugh: I have never worked for a software shop that did not require specs. I'm sure they are out there...50% of the time, at least. :) -- just teasing you.

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            Amarnath S
            wrote on last edited by
            #48

            :thumbsup:

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            • J Jacquers

              I still prefer to design the database the traditional way, but the migrations that code first uses are pretty cool.

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              Nish Nishant
              wrote on last edited by
              #49

              Can you elaborate on that please?

              Regards, Nish


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

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              • S Slacker007

                We are thinking about moving from database first, to code first, with our new projects.

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                PIEBALDconsult
                wrote on last edited by
                #50

                Frack no. It's the epitome of taking a very bad idea and following it ad absurdum.

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                • G GuyThiebaut

                  I like to roll my own too - if you know what you are doing then it works well.

                  “That which can be asserted without evidence, can be dismissed without evidence.”

                  ― Christopher Hitchens

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                  PIEBALDconsult
                  wrote on last edited by
                  #51

                  GuyThiebaut wrote:

                  if you know what you are doing

                  Exactly; from what I see, the "latest and greatest shiniest new" tools are designed for a different demographic. :suss: If you don't know what you're doing, better have someone else do it for you.

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                  • N Nish Nishant

                    Can you elaborate on that please?

                    Regards, Nish


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

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                    Jacquers
                    wrote on last edited by
                    #52

                    Here is an example click[^] It can generate scripts and apply them to the database based on changes made to the POCO classes used.

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                    • S Slacker007

                      We are thinking about moving from database first, to code first, with our new projects.

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                      dazfuller
                      wrote on last edited by
                      #53

                      I do indeed. You need to spend some time ensuring that your entity changes will produce the database design you're expecting (e.g. table-per-class, table-per-hierarchy etc...) and you may want to write some helpers to make adding things like indexes a bit easier but otherwise I've found it to be a very neat way of doing things. One thing to consider though is your initial database creation, for this I'd suggest either having a script to create the database and manage the configuration of it (not my preferred) or create a Database Project and output a DACPAC (much better and has better deployment options if you're using MS SQL Server). The reason for this is that if you use something like EF migrations then you'll get default database settings and sizings when it's created which you may not want, using a DACPAC means you get control over things like collation and recovery modes.

                      Eagles may soar, but weasels don't get sucked into jet engines

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                      • L Lost User

                        If you ever meet me: You won't like me before I had three mugs of strong coffee that day. Just see my signature.. :)

                        Get me coffee and no one gets hurt!

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                        RUs123
                        wrote on last edited by
                        #54

                        Hm, how does your heart manage with all that caffeine? I'm genuinely curious as I've tried drinking more coffee but it only made my heart beat faster, my mind was still very interested in sleeping. :) Or maybe I haven't developed a tolerance yet - haven't been drinking coffee regularly for too long.

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                        • S Slacker007

                          We are thinking about moving from database first, to code first, with our new projects.

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                          Flo Lee
                          wrote on last edited by
                          #55

                          I was raised with manual DB creation and then creating code that accesses the DB. This worked well with the waterfall model, where (theoretically) no changes would appear after planning and design (on paper) were over. But in recent years, as things became more "agile" (read: people do not want to make decisions, people want to change their mind very often, people just lack knowing the full story) I started to change my mind. We had lots of problems in our application when we were adding fields to an already existing complex DB and then implementing the handling code. Sometimes datatypes were wrong. Sometimes fieldnames were misspelled etc especially when the change was not implemented by just only one person. Another strong point for code-first entities design was the thing with SVN: While we had good practice already with versioning our code, the DB was hard to track in SVN. Ultimately people started to checkin binary backups from SQL Server, but you could not diff them etc. With code-first we now have a singular, unique description of the Db in Plaintext, with matching datatypes and compile-time error checks. Our test cycles are much easier now. BR Florian

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                          • J jeron1

                            Whilst I prefer the one's that on sale. :)

                            "the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

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                            SPoss
                            wrote on last edited by
                            #56

                            what about different flavours of coffee? does it help? Its normal coffee first (medium don't want to shock the heart to early, got work to do), then mid-morning, may be a orange flavoured coffee or cameral. Just received some Chocolate Mint, but not sure I like this one.

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                            • S Slacker007

                              We are thinking about moving from database first, to code first, with our new projects.

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                              dietmar paul schoder
                              wrote on last edited by
                              #57

                              I would not think about it. I would do it. We did it, it is a paradise.

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                              • S Slacker007

                                We are thinking about moving from database first, to code first, with our new projects.

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                                Quirkafleeg
                                wrote on last edited by
                                #58

                                You mean diving into the code isn't a good idea? Youtube analogy[^]

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                                • S Slacker007

                                  Vark111 wrote:

                                  Too many times someone makes a "minor" tweak to one or the other and then forgets to regenerate, then you're hosed.

                                  I have read, and heard, many stories about this. It is one of our concerns.

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                                  Layinka
                                  wrote on last edited by
                                  #59

                                  I am not sure how this can happen. If you were using Entity framework, i know this can't happen. EF will inform you that the database and the POCO are out of sync. Also, EF7 is strictly going to be Code first, though you have the option of generating the classes form an already existing db, but after that code first. I think i prefer code first a lot, its very RAD, and migrations allow me to tweak almost anything nowadays.

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                                  • S SPoss

                                    what about different flavours of coffee? does it help? Its normal coffee first (medium don't want to shock the heart to early, got work to do), then mid-morning, may be a orange flavoured coffee or cameral. Just received some Chocolate Mint, but not sure I like this one.

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                                    xiecsuk
                                    wrote on last edited by
                                    #60

                                    SPoss wrote: Just received some Chocolate Mint Ooooh, I just love After Eight Chocolate Mints. That thin layer of dark chocolate hiding the peppermint cream filling. Gorgeous!!!

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                                    • W WiganLatics

                                      BaconSandwichFirst

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                                      xiecsuk
                                      wrote on last edited by
                                      #61

                                      But then you would being from the right side of the Pennines!! That's if I read your signature right. And like me, I suppose it's tea during the day with a single cup of coffee after one's evening meal.

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                                      • R RUs123

                                        I'm more of a coffee first developer.

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                                        Anna Jayne Metcalfe
                                        wrote on last edited by
                                        #62

                                        Think of it as #caffeinedrivendevelopment in action.

                                        Anna (@annajayne) Tech Blog | Visual Lint "Why would anyone prefer to wield a weapon that takes both hands at once, when they could use a lighter (and obviously superior) weapon that allows you to wield multiple ones at a time, and thus supports multi-paradigm carnage?"

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                                        • L Layinka

                                          I am not sure how this can happen. If you were using Entity framework, i know this can't happen. EF will inform you that the database and the POCO are out of sync. Also, EF7 is strictly going to be Code first, though you have the option of generating the classes form an already existing db, but after that code first. I think i prefer code first a lot, its very RAD, and migrations allow me to tweak almost anything nowadays.

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                                          Slacker007
                                          wrote on last edited by
                                          #63

                                          Layinka wrote:

                                          EF7 is strictly going to be Code first

                                          Good to know.

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