Dear Roberto, dear Gary,
I thought I posted a reply earlier today but it seems it did not get
through. If it did, my apologies for double-posting.
Due to my lack of in-depth experience with Django, I beg for some more
detailed information how to get Python functions working with automatic
metadata.
Here is a use case:
I plan to have time-constrained documentation sitting inside Mayan EDMS,
such as warranty certificates, or performance verification certificates,
which are valid for only N days.
Ideally, the "Valid through" metadata should automagically calculate a
default expiry date from different metadata, e.g. purchase date, or
revision date.
Also, it would of course be great to then automatically change flags from
green to yellow, or whatever.
This needs a wee bit of Python magic (which I am OK with on the Python
side) with the default metadata as a function. But how can I, as Django
dummy, implement this (step by step) inside Mayan EDMS.
Thanks a million!
Chris
On Wednesday, 10 September 2014 16:26:09 UTC+3, Gary D Walborn wrote:
>
> Roberto,
>
> Thanks. I should have mentioned that I figured that out the other day
> by looking at the source code. Be aware that the current code does not
> override "__builtins__", so it is possible to enter code in the LOOKUP area
> to do anything that you want. For example,
>
> __import__('my_custom_module').my_function()
>
> I think that is probably not intended, but it works.
>
> Gary W.
>
> On Tuesday, September 9, 2014 2:22:12 PM UTC-4, Roberto Rosario wrote:
>>
>> Create you own custom settings.py file in mayan/settings directory:
>>
>> # my_settings.py file
>> from my_custom_module import my_function
>>
>> METADATA_AVAILABLE_MODELS = {'my_function': my_function}
>>
>> and launch Mayan with --settings=mayan.settings.my_settings.py
>>
>> now my_function should be available in the namespace of your metadata
>> lookup snippets.
>>
>>
>> On Tuesday, September 9, 2014 8:59:02 AM UTC-4, Gary D Walborn wrote:
>>>
>>> I found a work-around for this, but I think it is also a huge security
>>> hole in Mayan-EDMS. I think I'll use it, but it will probably go away when
>>> (if) the security hole is fixed. :-(
>>>
>>> On Thursday, September 4, 2014 3:48:38 PM UTC-4, Gary D Walborn wrote:
>>>>
>>>> I have written a python function (lets call it 'options') that returns
>>>> a list of strings. I would like to use this function to populate the
>>>> drop-down lists in a metadata type. I have tried all sorts of ways to do
>>>> this, and none of them seem to work. The documentation is very scant on
>>>> this subject. Can anyone provide any information on how this is supposed
>>>> to work?
>>>>
>>>> Thanks,
>>>>
>>>> Gary Walborn
>>>>
>>>>
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