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Create Django model or update if exists

...large collection it won't scale well. update_or_create always first runs a SELECT and thereafter an UPDATE. for the_bar in bars: updated_rows = SomeModel.objects.filter(bar=the_bar).update(foo=100) if not updated_rows: # if not exists, create new SomeModel.object...
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How to serialize SqlAlchemy result to JSON?

...oded before, it will encode it as 'None'. A recursive, possibly-circular, selective implementation Another alternative, probably better, is to be able to specify the fields you want to expand: def new_alchemy_encoder(revisit_self = False, fields_to_expand = []): _visited_objs = [] class ...
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Push existing project into Github

...s for your existing project. "Add New Local Repository" in repositories. Select your existing folder. It'll ask if you want to do that, say yes. Once done, you'll see a list of all your files, etc. Commit them. Go to Repositories and Publish (this will create the new repo on GitHub for you, if yo...
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Bootstrap 3 modal vertical position center

...ft:0; right:0; } Here is a fiddle. http://codepen.io/anon/pen/Hiskj ..selecting this as the correct answer since there's no extra heavy javascript that brings the browser to its knees in case of more than one modals. sh...
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Client to send SOAP request and receive response

...lope>"; string parms = string.Join(string.Empty, parameters.Select(kv => String.Format("<{0}>{1}</{0}>", kv.Key, kv.Value)).ToArray()); var s = String.Format(xmlStr, action, new Uri(url).GetLeftPart(UriPartial.Authority) + "/", parms); soapEnvelo...
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Button Click event fires when pressing Enter key in different input (no forms)

... must override IE's default behavior with preventDefault(). In your jQuery selector, put in the div that contains the text boxes you want to ignore the enter key -- in your case, the "page" div. Instead of selecting the whole div, you could also specify the text boxes you want to ignore specifically...
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What's the Hi/Lo algorithm?

...keys (which are then held as a range in the server & used as needed): select NEXT from KEY_ALLOC where SEQ=?; update KEY_ALLOC set NEXT=(old value+200) where SEQ=? and NEXT=(old value); Providing you can commit this transaction (use retries to handle contention), you have allocated 200 keys &...
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Center a map in d3 given a geoJSON object

...ction In code: var width = 300; var height = 400; var vis = d3.select("#vis").append("svg") .attr("width", width).attr("height", height) d3.json("nld.json", function(json) { // create a first guess for the projection var center = d3.geo.centroid(json) var scale...
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How to add/update an attribute to an HTML element using JavaScript?

...ry jQuery solution. Finds and sets the title attribute to foo. Note this selects a single element since I'm doing it by id, but you could easily set the same attribute on a collection by changing the selector. $('#element').attr( 'title', 'foo' ); ...
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How can you find the unused NuGet packages in a solution?

...n also project > Optimize Used References . . . A window will pop up. Select all references and remove them all. Then go back and re-add the ones that give you a compiler error. share | improve...