python - How do we define @list_route that accept arguments -

-

in application have modelviewset 1 @list_route() defined function getting list different serializer.

class animalviewset(viewsets.modelviewset):     """     viewset automatically provides `list`, `create`, `retrieve`,     `update` , `destroy` actions.     """     queryset = animal.objects.all()     serializer_class = animalserializer // default modelviewset serializer      lookup_field = 'this_id'      @list_route()     def listview(self, request):         query_set = animal.objects.all()         serializer = animallistingserializer(query_set, many=true) // serializer different field included.          return response(serializer.data)

the default animalviewset /api/animal/ end point yield serialized data result based on animalserializer definition.

{     "this_id": "1001",     "name": "animal testing 1",     "species_type": "cow",     "breed": "brahman",     ...     "herd": 1 }, {     "this_id": "1004",     "name": "animal testing 2",     "species_type": "cow",     "breed": "holstien",     ....     "herd": 1 }, {     "this_id": "1020",     "name": "animal testing 20",     "species_type": "cow",     "breed": "brahman",     ....     "herd": 4 },

and other 1 @list_route() defined function named listview may have end point /api/animal/listview/ yields result defined in animallistingserializer structure.

{     "this_id": "1001",     "name": "animal testing 1",     "species_type": "cow",     "breed": "brahman",     ....     "herd": {         "id": 1,         "name": "high production",         "description": null     } }, {     "this_id": "1004",     "name": "animal testing 2",     "species_type": "cow",     "breed": "holstien",     ....     "herd": {         "id": 1,         "name": "high production",         "description": null     } }, {     "this_id": "1020",     "name": "animal testing 20",     "species_type": "cow",     "breed": "brahman",     ....     "herd": {         "id": 4,         "name": "bad production",         "description": "bad production"     } }

now trying want define @list_route() function takes argument , uses animallistingserializer in order filter query_set result of model object. work around beginner us.

@list_route() def customlist(self, request, args1, args2):         query_set = animal.objects.filter(species_type=args1, breed=args2)         serializer = animallistingserializer(query_set, many=true)          return response(serializer.data)

let assumed args1 = "cow" , args2 = "brahman". , expecting result.

{     "this_id": "1001",     "name": "animal testing 1",     "species_type": "cow",     "breed": "brahman",     ....     "herd": {         "id": 1,         "name": "high production",         "description": null     } }, {     "this_id": "1020",     "name": "animal testing 20",     "species_type": "cow",     "breed": "brahman",     ....     "herd": {         "id": 4,         "name": "bad production",         "description": "bad production"     } },

but know syntax wrong, talking about. please help.

parameters in view function reserved url references. ie route animals/5 passed view function has pk argument. 

def get(self, request, pk):     # animal pk     return animal pk

by decorating @list_route on ride option provide additional params via url. in case resource can request via url listview; /animals/listview. have other options though if want continue down path. can pass parameters url via url, query param /animals/listview/?speceis_type=cow&breed=braham access in view via request.query_params['speceis_type'] , request.query_params['braham'] or can use django rest filter middleware documented here


Comments

Post a Comment

Popular posts from this blog

c - zlib and gdi32 with OpenSSL? -

-
this follow question undefined reference rsa_generate_key in openssl? have openssl program generate rsa key, follows : #include <stdio.h> #include <openssl/rsa.h> #include <openssl/pem.h> int main(int argc, char* argv[]) { rsa *r = null; int ret; r = rsa_new(); bignum *bne = null; ret = rsa_generate_key_ex(r, 2048, bne, null); return 0; } when compile gcc -i../include rsatest.c -lcrypto -l. i undefined reference errors functions in libraries gdi32 , zlib. so correct this, have add -lz , -lgdi32, as gcc -i../include/ rsatest.c -lcrypto -lz -lgdi32 -l. my question is, aren't static libcrypto , libssl self sufficient? in why having add libraries make work? there option should have added while compiling library prevent this? i'm using 64 bit windows mingw compiler. made openssl library of msys , make.
Read more

java - inputmismatch exception -

-
Image
this question has answer here: scanner skipping nextline() after using next(), nextint() or other nextfoo()? 14 answers import java.util.*; public class ngg { static scanner numberentered; static scanner userinput = new scanner(system.in); static int guessednumber; static int randomnumber = (int) (math.random()* 11); static scanner reply; static string answer; public static void main(string[] args) { guesschecker(guessednumber); } public static void guesschecker(int userguess) { while (userguess != randomnumber) { intro(); userguess = intchecker(); if (userguess == randomnumber) { system.out.println("congradulations!"); system.exit(0); } else { system.out.println("that incorrect!");...
Read more

ios - Align baselines with characters in large line heights with Text Kit -

-
Image
when draw attributed string fixed line height text kit, characters aligned bottom of line fragment. while make sense on 1 line characters varying in size, breaks flow of text multiple lines. baselines appear decided largest descender each line. i've found article people behind sketch explaining exact problem in bit more detail , showing solution does, not explaining how achieved this. this want basically: when showing 2 lines large line height, result far ideal: the code i'm using: let smallfont = uifont.systemfont(ofsize: 15) let bigfont = uifont.systemfont(ofsize: 25) let paragraphstyle = nsmutableparagraphstyle() paragraphstyle.minimumlineheight = 22 paragraphstyle.maximumlineheight = 22 var attributes = [ nsfontattributename: smallfont, nsparagraphstyleattributename: paragraphstyle ] let textstorage = nstextstorage() let textcontainer = nstextcontainer(size: cgsize(width: 250, height: 500)) let layoutmanager = nslayoutmanager() textstorage.append(n...
Read more