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<?php |
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/** |
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* Party Cohort Class |
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* |
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* @package TheyWorkForYou |
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*/ |
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namespace MySociety\TheyWorkForYou; |
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/** |
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* Policy Distribution |
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* This contains all the calculated information about the |
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* number of votes and agreements relevant to the policy |
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* distribution of a person (or their comparable MPs). |
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* $is_target is 1 if the person is the target of the comparison, |
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* 0 if they are the comparison. |
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*/ |
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class PolicyDistribution { |
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public int $id; |
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public int $policy_id; |
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public int $person_id; |
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public int $period_id; |
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public int $chamber_id; |
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public ?int $party_id; |
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public int $is_target; |
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public float $num_votes_same; |
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public float $num_strong_votes_same; |
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public float $num_votes_different; |
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public float $num_strong_votes_different; |
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public float $num_votes_absent; |
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public float $num_strong_votes_absent; |
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public float $num_votes_abstain; |
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public float $num_strong_votes_abstain; |
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public float $num_agreements_same; |
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public float $num_strong_agreements_same; |
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public float $num_agreements_different; |
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public float $num_strong_agreements_different; |
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public int $start_year; |
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public int $end_year; |
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public float $distance_score; |
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public string $party_slug; |
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public string $period_slug; |
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public string $party_name; |
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public string $period_description; |
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public function totalVotes(): float { |
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return $this->num_votes_same + $this->num_votes_different + $this->num_strong_votes_same + $this->num_strong_votes_different; |
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} |
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public function getVerboseScoreLower(): string { |
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$verbose_score = $this->getVerboseScore(); |
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return strtolower($verbose_score); |
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} |
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public function noDataAvailable(): bool { |
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return $this->distance_score == -1; |
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} |
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public function getVerboseScore(): string { |
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if ($this->distance_score >= 0 && $this->distance_score <= 0.05) { |
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return "Consistently voted for"; |
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} elseif ($this->distance_score > 0.05 && $this->distance_score <= 0.15) { |
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return "Almost always voted for"; |
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} elseif ($this->distance_score > 0.15 && $this->distance_score <= 0.4) { |
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return "Generally voted for"; |
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} elseif ($this->distance_score > 0.4 && $this->distance_score <= 0.6) { |
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return "Voted a mixture of for and against"; |
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} elseif ($this->distance_score > 0.6 && $this->distance_score <= 0.85) { |
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return "Generally voted against"; |
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} elseif ($this->distance_score > 0.85 && $this->distance_score <= 0.95) { |
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return "Almost always voted against"; |
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} elseif ($this->distance_score > 0.95 && $this->distance_score <= 1) { |
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return "Consistently voted against"; |
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} elseif ($this->distance_score == -1) { |
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return "No data available"; |
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} else { |
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throw new \InvalidArgumentException("Score must be between 0 and 1"); |
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} |
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} |
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/** |
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* Retrieves the policy distributions for a specific person, party, period, and chamber. |
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* |
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* @param int $person_id The ID of the person. |
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* @param string $party_slug The slug of the party. |
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* @param string $period_slug The slug of the period. |
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* @param int $house The ID of the house (default is HOUSE_TYPE_COMMONS). |
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* @return PolicyDistribution[] An array of PolicyDistribution objects. |
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*/ |
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public static function getPersonDistributions(int $person_id, string $party_slug, string $period_slug, int $house = HOUSE_TYPE_COMMONS): array { |
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$db = new \ParlDB(); |
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// need to join to policyorganisationsto get the party_id |
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// need to join to policycomparisonperiod to get slug to id |
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// need to special case the query for independent mps because the results for this are in a null party_id |
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if ($party_slug == "independent") { |
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$sql = "SELECT |
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pd.*, |
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\"independent\" as party_slug, |
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\"Independent\" as party_name, |
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pp.slug as period_slug, |
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pp.description as period_description |
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FROM policyvotedistribution pd |
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JOIN policycomparisonperiod pp ON pd.period_id = pp.id |
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WHERE pd.person_id = :person_id |
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AND pd.party_id IS NULL |
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AND pp.slug = :period_slug |
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AND pd.chamber_id = :house |
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AND pp.chamber_id = :house |
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"; |
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$params = ['person_id' => $person_id, |
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'period_slug' => $period_slug, |
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'house' => $house]; |
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} else { |
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$sql = "SELECT |
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pd.*, |
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po.slug as party_slug, |
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po.name as party_name, |
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pp.slug as period_slug, |
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pp.description as period_description |
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FROM policyvotedistribution pd |
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JOIN policycomparisonperiod pp ON pd.period_id = pp.id |
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JOIN policyorganization po ON pd.party_id = po.id |
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WHERE pd.person_id = :person_id |
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AND po.slug = :party_slug |
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AND pp.slug = :period_slug |
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AND pd.chamber_id = :house |
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AND pp.chamber_id = :house |
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"; |
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$params = ['person_id' => $person_id, |
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'party_slug' => $party_slug, |
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'period_slug' => $period_slug, |
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'house' => $house]; |
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} |
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$rows = $db->query($sql, $params); |
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$distributions = []; |
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foreach ($rows as $row) { |
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$distributions[] = self::fromRow($row); |
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} |
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return $distributions; |
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} |
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public static function fromRow(array $row): PolicyDistribution { |
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$pd = new PolicyDistribution(); |
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$pd->id = (int) $row['id']; |
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$pd->policy_id = (int) $row['policy_id']; |
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$pd->person_id = (int) $row['person_id']; |
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$pd->period_id = (int) $row['period_id']; |
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$pd->chamber_id = (int) $row['chamber_id']; |
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$pd->party_id = (int) $row['party_id']; |
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$pd->is_target = (int) $row['is_target']; |
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$pd->num_votes_same = (float) $row['num_votes_same']; |
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$pd->num_strong_votes_same = (float) $row['num_strong_votes_same']; |
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$pd->num_votes_different = (float) $row['num_votes_different']; |
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$pd->num_strong_votes_different = (float) $row['num_strong_votes_different']; |
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$pd->num_votes_absent = (float) $row['num_votes_absent']; |
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$pd->num_strong_votes_absent = (float) $row['num_strong_votes_absent']; |
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$pd->num_votes_abstain = (float) $row['num_votes_abstain']; |
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$pd->num_strong_votes_abstain = (float) $row['num_strong_votes_abstain']; |
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$pd->num_agreements_same = (float) $row['num_agreements_same']; |
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$pd->num_strong_agreements_same = (float) $row['num_strong_agreements_same']; |
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$pd->num_agreements_different = (float) $row['num_agreements_different']; |
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$pd->num_strong_agreements_different = (float) $row['num_strong_agreements_different']; |
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$pd->start_year = (int) $row['start_year']; |
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$pd->end_year = (int) $row['end_year']; |
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$pd->distance_score = (float) $row['distance_score']; |
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$pd->party_slug = $row['party_slug']; |
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$pd->period_slug = $row['period_slug']; |
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$pd->party_name = $row['party_name']; |
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$pd->period_description = $row['period_description']; |
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return $pd; |
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} |
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} |
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mysociety /
theyworkforyou
