Re: Implementation for Deleting Entities from an Aggregate
"Jorge Branco [email protected] [domaindrivendesign]" <[email protected]> Tue, 6 Sep 2016 18:29:44 +0200
| Newsgroups | gmane.comp.programming.domain-driven-design |
|---|---|
| Message-ID | <CAMfCbE800gJ5zW4iGNqrBuHkG4hbfrjmR2QaD5G_xniag8mqQg@mail.gmail.com> |
--001a11c3bc622596f6053bd94fc2 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Moving the Comments to their own aggregates has nothing to do with a sense of belonging. The question at hand is: are you protecting some kind of invariant encompassing both the current aggregate's root (Post) and Comments? If not, there's no reason to have them in the same aggregate. And that surely would help you in this situation. Jorge On Tue, Sep 6, 2016 at 4:13 PM, [email protected] [domaindrivendesign] <[email protected]> wrote: > > > I have toyed with the idea of doing that, when refining my aggregates. > The one thing that keeps steering me away from this is that the concept o= f > comments really doesn't make any sense outside of the posts that they > annotate. As I expect the requirements to continue to change over time, > though, I have not ruled it out. > > Thank you! > >=20 > --001a11c3bc622596f6053bd94fc2 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <head> <style type=3D"text/css"> <!-- /* start of attachment style */ .ygrp-photo-title{ clear: both; font-size: smaller; height: 15px; overflow: hidden; text-align: center; width: 75px; } div.ygrp-photo{ background-position: center; background-repeat: no-repeat; background-color: white; border: 1px solid black; height: 62px; width: 62px; } div.photo-title=20 a, div.photo-title a:active, div.photo-title a:hover, div.photo-title a:visited { text-decoration: none;=20 } div.attach-table div.attach-row { clear: both; } div.attach-table div.attach-row div { float: left; /* margin: 2px;*/ } p { clear: both; padding: 15px 0 3px 0; overflow: hidden; } div.ygrp-file { width: 30px; valign: middle; } div.attach-table div.attach-row div div a { text-decoration: none; } div.attach-table div.attach-row div div span { font-weight: normal; } div.ygrp-file-title { font-weight: bold; } /* end of attachment style */ --> </style> </head> <html> <head> <style type=3D"text/css"> <!-- #ygrp-mkp { border: 1px solid #d8d8d8; font-family: Arial; margin: 10px 0; padding: 0 10px; } #ygrp-mkp hr { border: 1px solid #d8d8d8; } #ygrp-mkp #hd { color: #628c2a; font-size: 85%; font-weight: 700; line-height: 122%; margin: 10px 0; } #ygrp-mkp #ads { margin-bottom: 10px; } #ygrp-mkp .ad { padding: 0 0; } #ygrp-mkp .ad p { margin: 0; } #ygrp-mkp .ad a { color: #0000ff; text-decoration: none; } --> </style> </head> <body> <!-- |**|begin egp html banner|**| --> <br><br> <!-- |**|end egp html banner|**| --> <div dir=3D"ltr">Moving the Comments to their own aggregates has nothing to= do with a sense of belonging. The question at hand is: are you protecting = some kind of invariant encompassing both the current aggregate's root (= Post) and Comments? If not, there's no reason to have them in the same = aggregate. And that surely would help you in this situation.<div><br></div>= <div>Jorge<br><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On = Tue, Sep 6, 2016 at 4:13 PM, <a href=3D"mailto:[email protected]">jos= [email protected]</a> [domaindrivendesign] <span dir=3D"ltr"><<a href= =3D"mailto:[email protected]" target=3D"_blank">domaindriv= [email protected]</a>></span> wrote:<br><blockquote class=3D"gmai= l_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left= :1ex"> <u></u> =20 <div style=3D"background-color:#fff"> <span style=3D"display:none">=C2=A0</span> <div> <div> <div> =20=20=20=20=20=20 =20=20=20=20=20=20 <p>I have toyed with the idea of doing that, when refining my aggrega= tes.=C2=A0 The one thing that keeps steering me away from this is that the = concept of comments really doesn't make any sense outside of the posts = that they annotate.=C2=A0 As I expect the requirements to continue to chang= e over time, though, I have not ruled it out.</p><div><br></div><div>Thank = you!</div><p></p> </div> =20=20=20=20=20 =20=20=20=20 <div style=3D"color:#fff;min-height:0"></div> </div> =20=20 </blockquote></div><br></div></div></div> <!-- |**|begin egp html banner|**| --> <br> <br> <!-- |**|end egp html banner|**| --> <div width=3D"1" style=3D"color: white; clear: both;"/>__._,_.___</div> =20=20=20=20=20=20 =20=20 =20=20=20=20 <div id=3D"fromDMARC" style=3D"clear:both; margin-top: 10px;"> <hr style=3D"height:2px ; border-width:0; color:#E3E3E3; backgroun= d-color:#E3E3E3;"> Posted by: Jorge Branco <[email protected]> = <hr style=3D"height:2px ; border-width:0; color:#E3E3E3; background-color:= #E3E3E3;"> </div> <!-- Start Recommendations --> <!-- End Recommendations --> <!-- |**|begin egp html banner|**| --> <img src=3D"http://geo.yahoo.com/serv?s=3D97476590/grpId=3D8116923/grpspI= d=3D1705007181/msgId=3D24810/stime=3D1473179409" width=3D"1" height=3D"1"> = <br> <!-- |**|end egp html banner|**| --> =20=20 <!-- |**|begin egp html banner|**| --> <br> =20=20=20 =20=20=20=20=20 =20 <!-- |**|begin egp html banner|**| --> <div id=3D"ygrp-vital" style=3D"background-color: #f2f2f2; font-fam= ily: Verdana; font-size: 10px; margin-bottom: 10px; padding: 10px;"> <span id=3D"vithd" style=3D"font-weight: bold; color: #333; text-tr= ansform: uppercase; "><a href=3D"https://groups.yahoo.com/neo/groups/domain= drivendesign/info;_ylc=3DX3oDMTJlOXFoc2dkBF9TAzk3MzU5NzE0BGdycElkAzgxMTY5Mj= MEZ3Jwc3BJZAMxNzA1MDA3MTgxBHNlYwN2dGwEc2xrA3ZnaHAEc3RpbWUDMTQ3MzE3OTQwOQ--"= style=3D"text-decoration: none;">Visit Your Group</a></span> <ul style=3D"list-style-type: none; margin: 0; padding: 0; display: in= line;"> <li style=3D"border-right: 1px solid #000; font-weight: 700; di= splay: inline; padding: 0 5px; margin-left: 0;"> <span class=3D"cat"><a href=3D"https://groups.yahoo.com/neo/groups/do= maindrivendesign/members/all;_ylc=3DX3oDMTJmMmNndGtvBF9TAzk3MzU5NzE0BGdycEl= kAzgxMTY5MjMEZ3Jwc3BJZAMxNzA1MDA3MTgxBHNlYwN2dGwEc2xrA3ZtYnJzBHN0aW1lAzE0Nz= MxNzk0MDk-" style=3D"text-decoration: none;">New Members</a></span> <span class=3D"ct" style=3D"color: #ff7900;">4</span> </li> </ul> </div> <div id=3D"ft" style=3D"font-family: Arial; font-size: 11px; margin-top: 5p= x; padding: 0 2px 0 0; clear: both;"> <a href=3D"https://groups.yahoo.com/neo;_ylc=3DX3oDMTJkbnE0amxvBF9TAzk3ND= c2NTkwBGdycElkAzgxMTY5MjMEZ3Jwc3BJZAMxNzA1MDA3MTgxBHNlYwNmdHIEc2xrA2dmcARzd= GltZQMxNDczMTc5NDA5" style=3D"float: left;"><img src=3D"http://l.yimg.com/r= u/static/images/yg/img/email/new_logo/logo-groups-137x15.png" height=3D"15"= width=3D"137" alt=3D"Yahoo! 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