解码json并迭代django模板中的项目

Hi I am using simplejson to import some json and then decode for use within a django template,

嗨，我使用simplejson导入一些json然后解码以在django模板中使用，

this is the decoded json:

这是解码的json：

{u'ServerID': 1, u'Cache': {u'CacheBusted': False, u'FromCache': True}, u'Result': [{u'Url': u'http://listen.grooveshark.com/playlist/Soul_Power/399134', u'Cache': {u'FromCache': True}, u'PlaylistID': u'399134', u'Name': u'Soul Power', u'ModifiedTime': u'1229427645'}, {u'Url': u'http://listen.grooveshark.com/playlist/4RK_(v.3)/491934', u'Cache': {u'FromCache': True}, u'PlaylistID': u'491934', u'Name': u'4RK (v.3)', u'ModifiedTime': u'1231028348'}, {u'Url': u'http://listen.grooveshark.com/playlist/My_Bands/3735842', u'Cache': {u'FromCache': True}, u'PlaylistID': u'3735842', u'Name': u'My Bands', u'ModifiedTime': u'1234384383'}, {u'Url': u'http://listen.grooveshark.com/playlist/Go_Move_Cruise/19255842', u'Cache': {u'FromCache': True}, u'PlaylistID': u'19255842', u'Name': u'Go Move Cruise', u'ModifiedTime': u'1259081222'}, {u'Url': u'http://listen.grooveshark.com/playlist/Goodnight/19854340', u'Cache': {u'FromCache': True}, u'PlaylistID': u'19854340', u'Name': u'Goodnight', u'ModifiedTime': u'1259457504'}, {u'Url': u"http://listen.grooveshark.com/playlist/Bottle_Poppin'_with_Friends_&_Scarfs/22398199", u'Cache': {u'FromCache': True}, u'PlaylistID': u'22398199', u'Name': u"Bottle Poppin' with Friends & Scarfs", u'ModifiedTime': u'1262525701'}, {u'Url': u'http://listen.grooveshark.com/playlist/Primer/23525296', u'Cache': {u'FromCache': True}, u'PlaylistID': u'23525296', u'Name': u'Primer', u'ModifiedTime': u'1264372296'}, {u'Url': u'http://listen.grooveshark.com/playlist/The_Snake_The_Cross_The_Crown/23863213', u'Cache': {u'FromCache': True}, u'PlaylistID': u'23863213', u'Name': u'The Snake The Cross The Crown', u'ModifiedTime': u'1264884692'}, {u'Url': u'http://listen.grooveshark.com/playlist/Ward/24957740', u'Cache': {u'FromCache': True}, u'PlaylistID': u'24957740', u'Name': u'Ward', u'ModifiedTime': u'1265843831'}, {u'Url': u'http://listen.grooveshark.com/playlist/NeuroLinguistic_Programming/26526478', u'Cache': {u'FromCache': True}, u'PlaylistID': u'26526478', u'Name': u'Neuro-Linguistic Programming', u'ModifiedTime': u'1268957617'}, {u'Url': u'http://listen.grooveshark.com/playlist/ISO50_Playlist_#8/27319532', u'Cache': {u'FromCache': True}, u'PlaylistID': u'27319532', u'Name': u'ISO50 Playlist #8', u'ModifiedTime': u'1270560957'}, {u'Url': u'http://listen.grooveshark.com/playlist/Caribou_Swim/27959307', u'Cache': {u'FromCache': True}, u'PlaylistID': u'27959307', u'Name': u'Caribou - Swim', u'ModifiedTime': u'1271811201'}, {u'Url': u'http://listen.grooveshark.com/playlist/Del/28944659', u'Cache': {u'FromCache': True}, u'PlaylistID': u'28944659', u'Name': u'Del', u'ModifiedTime': u'1273576988'}, {u'Url': u'http://listen.grooveshark.com/playlist/ISO50_Playlist_#7/29740328', u'Cache': {u'FromCache': True}, u'PlaylistID': u'29740328', u'Name': u'ISO50 Playlist #7', u'ModifiedTime': u'1274878455'}, {u'Url': u'http://listen.grooveshark.com/playlist/Axe_Atac/29827929', u'Cache': {u'FromCache': True}, u'PlaylistID': u'29827929', u'Name': u'Axe A-tac', u'ModifiedTime': u'1274999610'}, {u'Url': u'http://listen.grooveshark.com/playlist/Finding_Candy/31280614', u'Cache': {u'FromCache': True}, u'PlaylistID': u'31280614', u'Name': u'Finding Candy', u'ModifiedTime': u'1277587721'}, {u'Url': u'http://listen.grooveshark.com/playlist/Tobacco_Fingerlicked_Up_Friends/32410276', u'Cache': {u'FromCache': True}, u'PlaylistID': u'32410276', u'Name': u'Tobacco - Fingerlicked Up Friends', u'ModifiedTime': u'1279650743'}, {u'Url': u'http://listen.grooveshark.com/playlist/Broken_Social_Scene_Forgiveness_Rock_Band/32410310', u'Cache': {u'FromCache': True}, u'PlaylistID': u'32410310', u'Name': u'Broken Social Scene - Forgiveness Rock Band', u'ModifiedTime': u'1279650795'}, {u'Url': u'http://listen.grooveshark.com/playlist/Yeasayer_All_Hour_Cymbals/32410328', u'Cache': {u'FromCache': True}, u'PlaylistID': u'32410328', u'Name': u'Yeasayer - All Hour Cymbals', u'ModifiedTime': u'1279650820'}, {u'Url': u'http://listen.grooveshark.com/playlist/Yeasayer_Odd_Blood/32410341', u'Cache': {u'FromCache': True}, u'PlaylistID': u'32410341', u'Name': u'Yeasayer - Odd Blood', u'ModifiedTime': u'1279650839'}, {u'Url': u'http://listen.grooveshark.com/playlist/The_Chemical_Brothers_Further/32410395', u'Cache': {u'FromCache': True}, u'PlaylistID': u'32410395', u'Name': u'The Chemical Brothers - Further', u'ModifiedTime': u'1279650906'}, {u'Url': u'http://listen.grooveshark.com/playlist/Why?_Alopecia/32694517', u'Cache': {u'FromCache': True}, u'PlaylistID': u'32694517', u'Name': u'Why? - Alopecia', u'ModifiedTime': u'1280139036'}, {u'Url': u'http://listen.grooveshark.com/playlist/Ben_Frost_By_The_Throat/34275177', u'Cache': {u'FromCache': True}, u'PlaylistID': u'34275177', u'Name': u'Ben Frost - By The Throat', u'ModifiedTime': u'1282579712'}, {u'Url': u'http://listen.grooveshark.com/playlist/Digitalism_Idealism/34422107', u'Cache': {u'FromCache': True}, u'PlaylistID': u'34422107', u'Name': u'Digitalism - Idealism', u'ModifiedTime': u'1282771579'}, {u'Url': u'http://listen.grooveshark.com/playlist/Bun_B_Trill_O.G._[Deluxe_Edition]/34914808', u'Cache': {u'FromCache': True}, u'PlaylistID': u'34914808', u'Name': u'Bun B - Trill O.G. [Deluxe Edition]', u'ModifiedTime': u'1283438827'}, {u'Url': u'http://listen.grooveshark.com/playlist/Simian_Mobile_Disco_Attack_Decay_Sustain_Release/35054649', u'Cache': {u'FromCache': False}, u'PlaylistID': u'35054649', u'Name': u'Simian Mobile Disco - Attack Decay Sustain Release', u'ModifiedTime': u'1283640118'}, {u'Url': u'http://listen.grooveshark.com/playlist/Salem_King_Knight/35268471', u'Cache': {u'FromCache': True}, u'PlaylistID': u'35268471', u'Name': u'Salem - King Knight', u'ModifiedTime': u'1283972703'}, {u'Url': u'http://listen.grooveshark.com/playlist/Maxence_Cyrin_Novo_Piano/36527813', u'Cache': {u'FromCache': True}, u'PlaylistID': u'36527813', u'Name': u'Maxence Cyrin - Novo Piano', u'ModifiedTime': u'1285872470'}, {u'Url': u'http://listen.grooveshark.com/playlist/Fingerlick_Buttons_Tarot_Sport/33635471', u'Cache': {u'FromCache': True}, u'PlaylistID': u'33635471', u'Name': u'Fingerlick Buttons - Tarot Sport', u'ModifiedTime': u'1281633330'}, {u'Url': u'http://listen.grooveshark.com/playlist/Scrappy/37988906', u'Cache': {u'FromCache': True}, u'PlaylistID': u'37988906', u'Name': u'Scrappy', u'ModifiedTime': u'1287967005'}, {u'Url': u'http://listen.grooveshark.com/playlist/The_Green_Album_Omer_Saar/40654922', u'Cache': {u'FromCache': True}, u'PlaylistID': u'40654922', u'Name': u'The Green Album - Omer Saar', u'ModifiedTime': u'1291818391'}, {u'Url': u'http://listen.grooveshark.com/playlist/Murdered_Out/7479852', u'Cache': {u'FromCache': True}, u'PlaylistID': u'7479852', u'Name': u'Murdered Out', u'ModifiedTime': u'1236897259'}, {u'Url': u'http://listen.grooveshark.com/playlist/Hot_and_Tired/27931954', u'Cache': {u'FromCache': True}, u'PlaylistID': u'27931954', u'Name': u'Hot and Tired', u'ModifiedTime': u'1271772133'}, {u'Url': u'http://listen.grooveshark.com/playlist/SawTooth_Bass/18284890', u'Cache': {u'FromCache': False}, u'PlaylistID': u'18284890', u'Name': u'Saw-Tooth Bass', u'ModifiedTime': u'1256910446'}, {u'Url': u'http://listen.grooveshark.com/playlist//\\/\\/\\/\\/\\/\\//27216709', u'Cache': {u'FromCache': False}, u'PlaylistID': u'27216709', u'Name': u'/\\/\\/\\/\\/\\/\\/', u'ModifiedTime': u'1270332371'}, {u'Url': u'http://listen.grooveshark.com/playlist/ISO50_Playlist_#10/38892561', u'Cache': {u'FromCache': True}, u'PlaylistID': u'38892561', u'Name': u'ISO50 Playlist #10', u'ModifiedTime': u'1289155227'}, {u'Url': u'http://listen.grooveshark.com/playlist/Chill_Rap/4516', u'Cache': {u'FromCache': True}, u'PlaylistID': u'4516', u'Name': u'Chill Rap', u'ModifiedTime': u'1201712529'}, {u'Url': u'http://listen.grooveshark.com/playlist/The_Basement/29007410', u'Cache': {u'FromCache': True}, u'PlaylistID': u'29007410', u'Name': u'The Basement', u'ModifiedTime': u'1273668603'}, {u'Url': u'http://listen.grooveshark.com/playlist/Fingerlicking_Awesome_Mashups/36954458', u'Cache': {u'FromCache': True}, u'PlaylistID': u'36954458', u'Name': u'Fingerlicking Awesome Mashups', u'ModifiedTime': u'1286489257'}, {u'Url': u'http://listen.grooveshark.com/playlist/The_Augustine/29939116', u'Cache': {u'FromCache': True}, u'PlaylistID': u'29939116', u'Name': u'The Augustine', u'ModifiedTime': u'1275215560'}, {u'Url': u'http://listen.grooveshark.com/playlist/Best_Of_Wu/15335431', u'Cache': {u'FromCache': True}, u'PlaylistID': u'15335431', u'Name': u'Best Of Wu', u'ModifiedTime': u'1250298301'}, {u'Url': u'http://listen.grooveshark.com/playlist/ISO50_Presents:_Dry_Waves/40210604', u'Cache': {u'FromCache': True}, u'PlaylistID': u'40210604', u'Name': u'ISO50 Presents: Dry Waves', u'ModifiedTime': u'1291138412'}, {u'Url': u'http://listen.grooveshark.com/playlist/ReUp_Gang_We_Got_It_4_Cheap_Volume_3/43589616', u'Cache': {u'FromCache': True}, u'PlaylistID': u'43589616', u'Name': u'Re-Up Gang - We Got It 4 Cheap Volume 3', u'ModifiedTime': u'1297612447'}, {u'Url': u'http://listen.grooveshark.com/playlist/ISO50_Playlist_#9/35248549', u'Cache': {u'FromCache': True}, u'PlaylistID': u'35248549', u'Name': u'ISO50 Playlist #9', u'ModifiedTime': u'1283952285'}, {u'Url': u'http://listen.grooveshark.com/playlist/PostRock_Playboy/6183030', u'Cache': {u'FromCache': True}, u'PlaylistID': u'6183030', u'Name': u'Post-Rock Playboy', u'ModifiedTime': u'1236008915'}, {u'Url': u'http://listen.grooveshark.com/playlist/Ambient_Electronic/376180', u'Cache': {u'FromCache': True}, u'PlaylistID': u'376180', u'Name': u'Ambient Electronic', u'ModifiedTime': u'1229023391'}, {u'Url': u'http://listen.grooveshark.com/playlist/Man_On_The_Moon_II:_The_Legend_Of_Mr._Rager/38994029', u'Cache': {u'FromCache': True}, u'PlaylistID': u'38994029', u'Name': u'Man On The Moon II: The Legend Of Mr. Rager', u'ModifiedTime': u'1289301711'}, {u'Url': u'http://listen.grooveshark.com/playlist/Ghostface_Killah_Apollo_Kids/43155947', u'Cache': {u'FromCache': True}, u'PlaylistID': u'43155947', u'Name': u'Ghostface Killah - Apollo Kids', u'ModifiedTime': u'1296741352'}, {u'Url': u'http://listen.grooveshark.com/playlist/All_Funk/2528', u'Cache': {u'FromCache': True}, u'PlaylistID': u'2528', u'Name': u'All Funk', u'ModifiedTime': u'1195084800'}, {u'Url': u'http://listen.grooveshark.com/playlist/Bearbot_Evocation/39236538', u'Cache': {u'FromCache': True}, u'PlaylistID': u'39236538', u'Name': u'Bearbot - Evocation', u'ModifiedTime': u'1289595559'}], u'Success': True, u'RateLimit': {u'CacheBusts': 0, u'ResetTime': 1300238204, u'CallsRemaining': 151, u'CallsMade': 48, u'RemainingSecs': 1256}}

I need the following for each item in result:

结果中的每个项目都需要以下内容：

• Url • PlaylistID • Name

•网址•播放列表ID•名称

from the dictionary, but I was wondering if I need to tidy/sort this data in my views.py before I pass the data to the django template? and then how do I loop through this so I get

从字典中，但我想知道在将数据传递给django模板之前是否需要在views.py中整理/排序这些数据？然后我如何循环这个，所以我得到

Result1: URL, PlaylistID, Name
Result1：URL，PlaylistID，Name
Result2: URL, PlaylistID, Name
结果2：URL，播放列表ID，名称
Result3: URL, PlaylistID, Name
结果3：URL，播放列表ID，名称
Result4: URL, PlaylistID, Name ...etc
结果4：URL，播放列表ID，名称等

I am just learning python so any help or suggestions are appreciated.

我只是学习python所以任何帮助或建议都表示赞赏。

thanks Jon

谢谢乔恩

2 个解决方案

#1

Once you've used Python's json or simplejson module to load the JSON data into Python objects, everything should just work in your template.

一旦你使用Python的json或simplejson模块将JSON数据加载到Python对象中，一切都应该只在你的模板中工作。

Before sending things to your template I would pull out the results like so...

在将内容发送到您的模板之前，我会将结果拉出来......

def foo_view(request):
    ....
    decoded_json = json.loads(json_string)
    return render_to_response('foo.html',{'results':decoded_json['Result']})

That way in your template you'll be able to work on each result like so...

在您的模板中，您将能够像这样处理每个结果......

<ul id="results">
     {% for result in results %}
     <li>Result{{ forloop.counter }}: {{ result.URL }}, {{ result.PlaylistID }}, {{ result.Name }} ...</li>
     {% endfor %}
</ul>

The data in the output will appear in the same order as it did in the JSON array at Results. If you need to sort the data then you will need to do that in your view, NOT in your template.

输出中的数据将与结果中的JSON数组中的数据顺序相同。如果您需要对数据进行排序，则需要在视图中进行排序，而不是在模板中。

#2

You don't need to do any further pre-processing in Python before sending the dictionary to Django (beyond what you have already done; using simplejson to parse the JSON string into a dictionary). Django's templating system is very good at dealing with dictionaries and lists.

在将字典发送到Django之前，您不需要在Python中进行任何进一步的预处理（超出您已经完成的工作;使用simplejson将JSON字符串解析为字典）。 Django的模板系统非常善于处理字典和列表。

I will assume you have passed the dictionary to Django in a variable called obj.

我假设你已经在一个名为obj的变量中将字典传递给了Django。

You should be able to access each item in the Result part of the dictionary using a for loop:

您应该能够使用for循环访问字典的Result部分中的每个项目：

<ul>
{% for result in obj.Result %}
    <li>{{ result.Url }}, {{ result.PlaylistID }}, {{ result.Name }}</li>
{% endfor %}
</ul>

For example, will place the results in a bulleted list, with the Url, Playlist and Name in a comma-separated list.

例如，将结果放在项目符号列表中，将Url，播放列表和名称放在以逗号分隔的列表中。

#1