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First pass of API endpoint for heatmap #39

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First pass of API endpoint for heatmap #39

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7b42606
First pass, convert relativediff to +/- int for heatmap colors
DanLaRoche Mar 8, 2019
bd806c7
Merge remote-tracking branch 'upstream/master'
DanLaRoche Mar 8, 2019
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23 changes: 17 additions & 6 deletions cerp/views.py
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Original file line number Diff line number Diff line change
Expand Up @@ -113,6 +113,10 @@ def topic_diff(topic, precinctNum):

@app.route('/api/<topic>/<precinctNum>/relativeDiff')
def topic_relativeDiff(topic, precinctNum):
step, diff_data = prepare_heatmap(topic, precinctNum, request)
return jsonify(result=True, step=step, data=diff_data)

def prepare_heatmap(topic, precinctNum, request):
comp1 = request.args.get('comp1', 'YES/FOR')
comp2 = request.args.get('comp2', 'NO/AGAINST')

Expand All @@ -127,8 +131,19 @@ def topic_relativeDiff(topic, precinctNum):
lambda row: ((-1 * row[comp1]) + row[comp2])/(row[comp1] + row[comp2]),
axis=1
)
diff_data = diff_data[['diff']].copy()
return jsonify(result=True, data=json.loads(diff_data.to_json())['diff'])
diff_data = diff_data[['diff']].copy()['diff'].to_dict()
step = abs(max(max(diff_data.values()), min(diff_data.values()), key=abs))
step = step/10
return step, diff_data

@app.route('/api/<topic>/<precinctNum>/heatmap')
def topic_heatmap(topic, precinctNum):
step, diff_data = prepare_heatmap(topic, precinctNum, request)

for key, value in diff_data.items():
diff_data[key] = round(value/step)

return jsonify(result=True, step=step, data=diff_data)

@app.route('/api/<topic>/<precinctNum>/meta')
def topic_meta(topic, precinctNum):
Expand All @@ -152,7 +167,3 @@ def topic_meta(topic, precinctNum):
result=True,
data=data.ELECTION_DATA[topic]['meta']
)

@app.route('/api/<topic>/<precinctNum>/heatmap')
def topic_heatmap(topic, precinctNum):
pass