def v4_regression_detail()

in lnt/server/ui/regression_views.py [0:0]

• 89 lines of code
• 11 McCabe index (conditional complexity)

def v4_regression_detail(id):
    ts = request.get_testsuite()
    form = EditRegressionForm(request.form)

    try:
        regression_info = ts.query(ts.Regression) \
            .filter(ts.Regression.id == id) \
            .one()
    except NoResultFound as e:
        abort(404)
    if request.method == 'POST' and request.form['save_btn'] == "Save Changes":
        regression_info.title = form.title.data
        regression_info.bug = form.bug.data
        regression_info.state = form.state.data
        ts.commit()
        flash("Updated " + regression_info.title, FLASH_SUCCESS)
        return redirect(v4_url_for("v4_regression_list",
                        highlight=regression_info.id,
                        state=int(form.edit_state.data)))
    if request.method == 'POST' and request.form['save_btn'] == "Split Regression":
        # For each of the regression indicators, grab their field ids.
        res_inds = ts.query(ts.RegressionIndicator) \
            .filter(ts.RegressionIndicator.field_change_id.in_(form.field_changes.data)) \
            .all()
        fc_ids = [x.field_change_id for x in res_inds]
        second_regression = new_regression(ts, fc_ids)
        second_regression.state = regression_info.state

        # Now remove our links to this regression.
        for res_ind in res_inds:
            ts.delete(res_ind)
        lnt.server.db.fieldchange.rebuild_title(ts, regression_info)
        ts.commit()
        flash("Split " + second_regression.title, FLASH_SUCCESS)
        return redirect(v4_url_for("v4_regression_list",
                        highlight=second_regression.id,
                        state=int(form.edit_state.data)))
    if request.method == 'POST' and request.form['save_btn'] == "Delete":
        # For each of the regression indicators, grab their field ids.
        title = regression_info.title
        res_inds = ts.query(ts.RegressionIndicator) \
            .filter(ts.RegressionIndicator.regression_id == regression_info.id) \
            .all()
        # Now remove our links to this regression.
        for res_ind in res_inds:
            ts.delete(res_ind)
        ts.delete(regression_info)
        ts.commit()
        flash("Deleted " + title, FLASH_SUCCESS)
        return redirect(v4_url_for("v4_regression_list",
                        state=int(form.edit_state.data)))
    form.field_changes.choices = list()
    form.state.default = regression_info.state
    form.process()
    form.edit_state.data = regression_info.state
    form.title.data = regression_info.title
    form.bug.data = regression_info.bug
    regression_indicators = ts.query(ts.RegressionIndicator) \
        .filter(ts.RegressionIndicator.regression_id == id) \
        .all()

    crs = []

    test_suite_versions = set()
    form.field_changes.choices = list()
    # If we have more than 10 regressions, don't graph any by default.
    checkbox_state = 1
    if len(regression_indicators) >= 10:
        checkbox_state = 0

    for regression in regression_indicators:
        fc = regression.field_change
        if fc is None:
            continue
        if fc.old_value is None:
            cr, key_run, all_runs = get_cr_for_field_change(ts, fc)
        else:
            cr = PrecomputedCR(fc.old_value, fc.new_value, fc.field.bigger_is_better)
            key_run = get_first_runs_of_fieldchange(ts, fc)
        current_cr, _, all_runs = get_cr_for_field_change(ts, fc, current=True)
        crs.append(ChangeData(fc, cr, key_run, current_cr))
        form.field_changes.choices.append((fc.id, checkbox_state,))
        for run in all_runs:
            ts_rev = key_run.parameters.get('test_suite_revision')
            if ts_rev and ts_rev != u'None':
                test_suite_versions.add(ts_rev)
    
    if len(test_suite_versions) > 1:
        revs = ', '.join(list(test_suite_versions))
        flash("More than one test-suite version: " + revs,
              FLASH_DANGER)

    if request.args.get('json'):
        return json.dumps({u'Regression': regression_info,
                           u'Changes': crs},
                          cls=LNTEncoder)

    return render_template("v4_regression_detail.html",
                           testsuite_name=g.testsuite_name,
                           regression=regression_info, changes=crs,
                           form=form, analysis=lnt.server.reporting.analysis,
                           check_all=checkbox_state)