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Simplified tag cloud.

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This commit is contained in:
James Cole
2018-07-25 06:18:20 +02:00
parent e504ee82e5
commit dbf019135a
1 changed files with 107 additions and 65 deletions
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172
app/Repositories/Tag/TagRepository.php
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@@ -286,82 +286,41 @@ class TagRepository implements TagRepositoryInterface
public function tagCloud(?int $year): array
{
// Some vars
$min = null;
$max = '0';
$return = [];
// get all tags in the year (if present):
$tagQuery = $this->user->tags()
->leftJoin('tag_transaction_journal', 'tag_transaction_journal.tag_id', '=', 'tags.id')
->leftJoin('transaction_journals', 'tag_transaction_journal.transaction_journal_id', '=', 'transaction_journals.id')
->leftJoin('transactions', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
->where(
function (Builder $query) {
$query->where('transactions.amount', '>', 0);
$query->orWhereNull('transactions.amount');
}
)
->groupBy(['tags.id', 'tags.tag']);
$tags = $this->getTagsInYear($year);
$max = $this->getMaxAmount($tags);
$min = $this->getMinAmount($tags);
$diff = bcsub($max, $min);
$return = [];
Log::debug(sprintf('Minimum is %s, maximum is %s, difference is %s', $min, $max, $diff));
// add date range (or not):
if (null === $year) {
Log::debug('Get tags without a date.');
$tagQuery->whereNull('tags.date');
}
if (null !== $year) {
Log::debug(sprintf('Get tags with year %s.', $year));
$tagQuery->where('tags.date', '>=', $year . '-01-01 00:00:00')->where('tags.date', '<=', $year . '-12-31 23:59:59');
// default scale is from 12 to 24, so 12 points.
$minimumFont = '12';
$maxPoints = '12';
$pointsPerCoin = '0';
// for each full coin in tag, add so many points:
if (0 !== bccomp($diff, '0')) {
$pointsPerCoin = bcdiv($maxPoints, $diff);
}
$result = $tagQuery->get(['tags.id', 'tags.tag', DB::raw('SUM(transactions.amount) as amount_sum')]);
Log::debug(sprintf('Each coin in a tag earns it %s points', $pointsPerCoin));
/** @var Tag $tag */
foreach ($result as $tag) {
$tagsWithAmounts[$tag->id] = (string)$tag->amount_sum;
$amount = '' !== $tagsWithAmounts[$tag->id] ? $tagsWithAmounts[$tag->id] : '0';
if (null === $min) {
$min = $amount;
}
$max = 1 === bccomp($amount, $max) ? $amount : $max;
$min = -1 === bccomp($amount, $min) ? $amount : $min;
$temporary[] = [
'amount' => $amount,
'tag' => [
'id' => $tag->id,
'tag' => $tag->tag,
],
];
Log::debug(sprintf('After tag "%s", max is %s and min is %s.', $tag->tag, $max, $min));
}
$min = $min ?? '0';
Log::debug(sprintf('FINAL max is %s, FINAL min is %s', $max, $min));
// the difference between max and min:
$range = bcsub($max, $min);
Log::debug(sprintf('The range is: %s', $range));
// each euro difference is this step in the scale:
$step = 0.0 !== (float)$range ? 8 / (float)$range : 0;
Log::debug(sprintf('The step is: %f', $step));
$size = 12;
foreach ($result as $tag) {
if (0 === $step) {
// easy: size is 12:
$size = 12;
}
if (0 !== $step) {
$amount = bcsub((string)$tag->amount_sum, $min);
Log::debug(sprintf('Work with amount %s for tag %s', $amount, $tag->tag));
$size = ((int)(float)$amount * $step) + 12;
}
foreach ($tags as $tag) {
$amount = (string)$tag->amount_sum;
$amount = '' === $amount ? '0' : $amount;
$pointsForTag = bcmul($amount, $pointsPerCoin);
$fontSize = bcadd($minimumFont, $pointsForTag);
Log::debug(sprintf('Tag "%s": Amount is %s, so points is %s', $tag->tag, $amount, $fontSize));
// return value for tag cloud:
$return[$tag->id] = [
'size' => $size,
'size' => $fontSize,
'tag' => $tag->tag,
'id' => $tag->id,
];
Log::debug(sprintf('Size is %d', $size));
}
return $return;
@@ -385,4 +344,87 @@ class TagRepository implements TagRepositoryInterface
return $tag;
}
/**
* @param Collection $tags
*
* @return string
*/
private function getMaxAmount(Collection $tags): string
{
$max = '0';
/** @var Tag $tag */
foreach ($tags as $tag) {
$amount = (string)$tag->amount_sum;
$amount = '' === $amount ? '0' : $amount;
$max = 1 === bccomp($amount, $max) ? $amount : $max;
}
Log::debug(sprintf('Maximum is %s.', $max));
return $max;
}
/**
* @param Collection $tags
*
* @return string
*/
private function getMinAmount(Collection $tags): string
{
$min = null;
/** @var Tag $tag */
foreach ($tags as $tag) {
$amount = (string)$tag->amount_sum;
$amount = '' === $amount ? '0' : $amount;
if (null === $min) {
$min = $amount;
}
$min = -1 === bccomp($amount, $min) ? $amount : $min;
}
if (null === $min) {
$min = '0';
}
Log::debug(sprintf('Minimum is %s.', $min));
return $min;
}
/**
* @param int|null $year
*
* @return Collection
*/
private function getTagsInYear(?int $year): Collection
{
// get all tags in the year (if present):
$tagQuery = $this->user->tags()
->leftJoin('tag_transaction_journal', 'tag_transaction_journal.tag_id', '=', 'tags.id')
->leftJoin('transaction_journals', 'tag_transaction_journal.transaction_journal_id', '=', 'transaction_journals.id')
->leftJoin('transactions', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
->where(
function (Builder $query) {
$query->where('transactions.amount', '>', 0);
$query->orWhereNull('transactions.amount');
}
)
->groupBy(['tags.id', 'tags.tag']);
// add date range (or not):
if (null === $year) {
Log::debug('Get tags without a date.');
$tagQuery->whereNull('tags.date');
}
if (null !== $year) {
Log::debug(sprintf('Get tags with year %s.', $year));
$tagQuery->where('tags.date', '>=', $year . '-01-01 00:00:00')->where('tags.date', '<=', $year . '-12-31 23:59:59');
}
return $tagQuery->get(['tags.id', 'tags.tag', DB::raw('SUM(transactions.amount) as amount_sum')]);
}
}