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| 17:16.51 | jdb_ | hello, I am curious on how storm internals, I would like to know which code formats the SQL string and writes and handle it to the correct driver. |
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| 17:17.35 | jdb_ | I am a bit lost in the object model, I was thinking about using a profile on a short code, to see the call stack. |
| 17:17.48 | jdb_ | a profiler, sorry |
| 17:20.22 | jdb_ | also, I was thinking about the best way to implement a tree on top of storm. Depending on the configuration and on the database, the tree would use "nested sets" or "a closure table" or use the Postgresql "with recurse" feature. |
| 17:20.42 | jkakar | jdb_: Storm queries are represented by expressions, defined in the storm.expr module. There's a compiler in that module that takes those expressions and generates the SQL that gets sent to the backend database. |
| 17:21.32 | jdb_ | jkakar: ok, I think I read that ... I will read it again :) thanks |
| 17:22.30 | jkakar | jdb_: Cool. :) |
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| 19:26.34 | jcsackett | hello, i'm curious about some odd storm query behavior i'm seeing. https://pastebin.canonical.com/39408/ |
| 19:27.17 | jcsackett | it looks as though one clause is being replaced by just "FALSE"...anyone have any thoughts? i'm at a complete loss. |
| 19:38.01 | jkakar | jcsackett: Hi! |
| 19:38.33 | jkakar | jcsackett: Is it possible that 'Product.translations_usage == ServiceUsage.LAUNCHPAD.value' is being evaluated and returning a bool? |
| 19:39.27 | jkakar | jcsackett: ie: being evaluated to a bool before it gets passed to store.find. |
| 19:43.35 | *** join/#storm magmatt (~matt@74-92-245-181-Utah.hfc.comcastbusiness.net) |
| 19:44.58 | magmatt | Is there a good way to dynamically add a Reference/ReferenceSet to a single instance without adding it to the entire class? |
| 19:46.34 | jcsackett | jkakar: in this case, if that were happening it should be True. which would actually work fine. |
| 19:49.20 | jcsackett | jkakar: is that sort of evaluation normal for storm? i would've thought the clause Product.active == True would be subbed out for a bool too if that were the case. |
| 19:49.26 | jcsackett | storm is very cool, but confuses me. :-P |
| 19:59.45 | magmatt | like this: http://paste.pocoo.org/show/291730/ |
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| 22:21.57 | magmatt | no ideas on dynamically adding references? http://paste.pocoo.org/show/291730/ |
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| 23:06.29 | hamush | hi, i've gotten into the habit of subclassing storm properties and replacing __get__() and __set__() for various db value translation purposes. this worked well for me until i decided to subclass storm.properties.Float... now StormObj.any_property is of type storm.properties.PropertyColumn, but StormObj.my_subclassed_float_property is of type float, which causes major problems. is there a better way to do what i'm trying to do? any ideas why this doesn't wo |
| 23:06.29 | hamush | rk? |
| 23:09.07 | hamush | in this particular instance, i have a float column which will never receive negative values, but does need to store +inf and -inf. my subclassed storm.properties.Float is intended to translate null and negative values to +/- inf since not all sql databases support +/-inf float values. this has worked great with other storm properties, just not Float for some reason |
| 23:13.26 | hamush | so, i guess i could rephrase my question as: what is the "right" way to create my own storm properties that use existing storm properties for actual storage? |
| 23:50.35 | hamush | i found my problem... my __get__() needs to check to make sure that the db value in question is actually a float before translating and returning... i didn't allow for the fact that __get__() operates for both Class.column and instance.column |