I know metaclasses, and i know that the django models uses some "meta class magic" to register the models on the model cache. I gess i need to test the implication of refreshing the model cache on the fly, since it doesn't have a "natural" way to refresh itself.
2017-01-05 14:05 GMT-02:00 Avraham Serour <[email protected]>: > you should read about metaclasses, basically it enables you to build class > definitions in runtime. > > http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python > > > On Thu, Jan 5, 2017 at 6:02 PM, Guilherme Leal <[email protected]> > wrote: > >> The "migrations on the fly" thing dont get to be a problem (since I gess >> we could call the migrations api to generate the migration). >> My concenrs would be contructing and refreshing the model cache (I say >> the "model cache" like the list accessed through django.apps.get_models() >> ), and the OBVIOUS performance issues that could be generated. >> >> Anyway, EVEN if it turns out to be impratical to production, i want to >> build it as a proof of concept, and see where it can go, so any help or >> ideias would be apreciated! >> >> 2017-01-05 13:52 GMT-02:00 Beautifulloop <[email protected]>: >> >>> I think you just need to define a generic model. I dont see how what you >>> are asking is feasible since it would require that (on the fly that >>> migrations are made). You can write a generic model where the types can be >>> represented by a field name. >>> >>> >>> On Thursday, 5 January 2017 17:33:07 UTC+2, Guilherme Leal wrote: >>>> >>>> My idea was to build an user interface for the model definition, so the >>>> developer (or in this case, the user) could define the model using a >>>> register form. >>>> >>>> Like a user interface to define the model layer, I gess. >>>> >>>> 2017-01-05 12:34 GMT-02:00 Avraham Serour <[email protected]>: >>>> >>>>> I guess you could play with metaclasses and generate the class >>>>> definition on runtime using information from the database >>>>> >>>>> But why? You can save the model definition on files, why saving them >>>>> to database and complicate your life? >>>>> >>>>> On Wed, Jan 4, 2017 at 10:38 PM, Guilherme Leal <[email protected]> >>>>> wrote: >>>>> >>>>>> Is there a way to populate Django model cache on the fly? >>>>>> I was thinking about saving the model definition on some backend >>>>>> (database for instance) and loading as needed. This way we can basically >>>>>> build a custom admin interface for the model definitions, and load the >>>>>> models (through "type()" or something similar) into the cache "on the >>>>>> fly". >>>>>> >>>>>> Guilherme Leal >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Django users" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to [email protected]. >>>>>> To post to this group, send email to [email protected]. >>>>>> Visit this group at https://groups.google.com/group/django-users. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/django-users/CAOs3Lp7_R4RK >>>>>> %3DVconoQ1W6rzK8xYaiVJX-FHtyZ3Cxg4MmbOow%40mail.gmail.com >>>>>> <https://groups.google.com/d/msgid/django-users/CAOs3Lp7_R4RK%3DVconoQ1W6rzK8xYaiVJX-FHtyZ3Cxg4MmbOow%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Django users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to [email protected]. >>>>> To post to this group, send email to [email protected]. >>>>> Visit this group at https://groups.google.com/group/django-users. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/django-users/CAFWa6t%2B5DO >>>>> 5u8p5fRrGAGkW1KYR2DZxc_wtkNQG7bX3u6v7JuA%40mail.gmail.com >>>>> <https://groups.google.com/d/msgid/django-users/CAFWa6t%2B5DO5u8p5fRrGAGkW1KYR2DZxc_wtkNQG7bX3u6v7JuA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Django users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/django-users. >>> To view this discussion on the web visit https://groups.google.com/d/ms >>> gid/django-users/e00f8c04-8c97-4827-9555-e155c4afd20a%40googlegroups.com >>> <https://groups.google.com/d/msgid/django-users/e00f8c04-8c97-4827-9555-e155c4afd20a%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Django users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at https://groups.google.com/group/django-users. >> To view this discussion on the web visit https://groups.google.com/d/ms >> gid/django-users/CAOs3Lp5V2Le%3DJWbSSp_%2B%2BsXK4KaN_3rB7-BV >> Hk6OSE8SgKoYFw%40mail.gmail.com >> <https://groups.google.com/d/msgid/django-users/CAOs3Lp5V2Le%3DJWbSSp_%2B%2BsXK4KaN_3rB7-BVHk6OSE8SgKoYFw%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/django-users/CAFWa6tKZcZLQ1BL7YhEqJpmmkv- > KLoxcRiMyMaTHsu7s3%2BA5%3DA%40mail.gmail.com > <https://groups.google.com/d/msgid/django-users/CAFWa6tKZcZLQ1BL7YhEqJpmmkv-KLoxcRiMyMaTHsu7s3%2BA5%3DA%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Django users" group. 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