Re: [testdrivendevelopment] "Find or Create" functions: a discussion

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I think there's an issue of naming and grouping here too.

What we are calling findOrCreate sits in a soup of possible API actions for
this sort of task. Some other common options include:

   - strict get - fail if not present, get if present
   - lazy get - default if not present, get if present
   - strict create - create if not present, fail if present,
   -
   - strict update - fail if not present, update if present
   - replace/put - create if not present, update if present,
   - ensure - create if not present, ignore if present
   - strict delete - fail if not present, remove if present
   - lazy delete - ignore if not present, remove if present

Some of the confusion in this area comes from looking at he needs of the
system though different "lenses". The CRUD view prioritises strict get,
strict create, strict update, and strict delete. The REST view prioritises
pure or lazy get, replace/put, and lazy delete.

One of the many things I find myself explaining much too often is that REST
is not CRUD. Conflating the two worldviews leads to all sorts of confusion.

Frank.

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<div dir=3D"ltr">I think there&#39;s an issue of naming and grouping here t=
oo.<div><br></div><div>What we are calling findOrCreate sits in a soup of p=
ossible API actions for this sort of task. Some other common options includ=
e:</div><div><ul><li>strict get - fail if not present, get if present</li><=
li>lazy get - default if not present, get if present</li><li>strict create =
-=20

create if not present, fail if present, </li><li></li><li>strict update - =
fail if not present, update if present</li><li>replace/put -=20

create if not present, update if present,<br></li><li>ensure - create if n=
ot present, ignore if present</li><li>strict delete - fail if not present, =
remove if present</li><li>lazy delete - ignore if not present, remove if pr=
esent</li></ul><div>Some of the confusion in this area comes from looking a=
t he needs of the system=C2=A0though different &quot;lenses&quot;. The CRUD=
 view prioritises strict get, strict create, strict update, and strict dele=
te. The REST view prioritises pure or lazy get, replace/put, and lazy delet=
e.</div></div><div><br></div><div>One of the many things I find myself expl=
aining much too often is that REST is not CRUD. Conflating the two worldvie=
ws leads to all sorts of confusion.</div><div><br></div><div>Frank.</div><d=
iv><br></div><div><br></div></div>

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