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POBetter way to write a JSON file to a DB?
 

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  1. POBetter way to write a JSON file to a DB?
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    <p>Here's the scenario: -I'm using embed.ly's oembed service to pull metadata about user submitted links (more info about that service: <a href="http://api.embed.ly/docs/oembed" rel="nofollow">http://api.embed.ly/docs/oembed</a>) -I use this content to generate previews of content on my site -When I submit a URL to embed.ly the service gives me back a JSON file containing the metadata -I want to write this to a database since users will be accessing this information repeatedly on my website -I'm using Django</p> <p>I have the scritp working. Below is my code. What I don't like about it is that it hard codes the keys that are found in the JSON file. If the keys change, or are not provided on a given query, then things break. I can fix the later issue, but was curious if anyone had a different approach that would tolerate missing data or changing keys. </p> <p>Here is the Python code that generates the JSON file (got this from embed.ly):</p> <pre><code>def submit_content(request): import urllib import urllib2 try: import json except ImportError: try: import simplejson as json except ImportError: raise ImportError("Need a json decoder") ACCEPTED_ARGS = ['maxwidth', 'maxheight', 'format'] def get_oembed(url, **kwargs): """ Example Embedly oEmbed Function """ api_url = 'http://api.embed.ly/1/oembed?' params = {'url':url } for key, value in kwargs.items(): if key not in ACCEPTED_ARGS: raise ValueError("Invalid Argument %s" % key) params[key] = value oembed_call = "%s%s" % (api_url, urllib.urlencode(params)) return json.loads(urllib2.urlopen(oembed_call).read()) </code></pre> <p>And here is my code that writes this to the DB:</p> <pre><code>if request.method == 'POST': form = SubmitContent(request.POST) if form.is_valid(): user = request.user content_url = form.cleaned_data['content_url'] url_return = get_oembed(content_url) recordSave = ContentQueue(submitted_url=content_url) for key in url_return: if key == 'provider_url': recordSave.provider_url = url_return[key] if key == 'description': recordSave.description = url_return[key] if key == 'title': recordSave.title = url_return[key] if key == 'url': recordSave.content_url = url_return[key] if key == 'author_name': recordSave.author_name = url_return[key] if key == 'height': recordSave.height_px = url_return[key] if key == 'width': recordSave.width_px = url_return[key] if key == 'thumbnail_url': recordSave.thumbnail_url = url_return[key] if key == 'thumbnail_width': recordSave.thumbnail_width = url_return[key] if key == 'version': recordSave.version = 1 if key == 'provider_name': recordSave.provider_name = url_return[key] if key == 'cache_age': recordSave.cache_age = url_return[key] if key == 'type': recordSave.url_type = url_return[key] if key == 'thumbnail_height': recordSave.thumbnail_height = url_return[key] if key == 'author_url': recordSave.author_url = url_return[key] recordSave.user = user </code></pre>
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