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<?php namespace Arcanedev\LaravelMetrics\Expressions\TrendDateFormat; |
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use Arcanedev\LaravelMetrics\Exceptions\InvalidTrendUnitException; |
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use Arcanedev\LaravelMetrics\Expressions\TrendDateFormat\Expression; |
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use Arcanedev\LaravelMetrics\Metrics\Trend; |
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/** |
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* Class SqliteExpression |
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* |
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* @package Arcanedev\LaravelMetrics\Expressions\TrendDateFormat |
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* @author ARCANEDEV <[email protected]> |
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*/ |
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class SqliteExpression extends Expression |
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{ |
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/* ----------------------------------------------------------------- |
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| Main Methods |
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| ----------------------------------------------------------------- |
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*/ |
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/** |
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* Get the value of the expression. |
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* |
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* @return mixed |
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*/ |
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public function getValue() |
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{ |
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$interval = $this->interval(); |
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switch ($this->unit) { |
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case Trend::BY_MONTHS: |
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return "strftime('%Y-%m', datetime({$this->wrap($this->value)}, {$interval}))"; |
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case Trend::BY_WEEKS: |
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return "strftime('%Y-%W', datetime({$this->wrap($this->value)}, {$interval}))"; |
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case Trend::BY_DAYS: |
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return "strftime('%Y-%m-%d', datetime({$this->wrap($this->value)}, {$interval}))"; |
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case Trend::BY_HOURS: |
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return "strftime('%Y-%m-%d %H:00', datetime({$this->wrap($this->value)}, {$interval}))"; |
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case Trend::BY_MINUTES: |
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return "strftime('%Y-%m-%d %H:%M:00', datetime({$this->wrap($this->value)}, {$interval}))"; |
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default: |
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throw InvalidTrendUnitException::make($this->unit); |
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} |
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} |
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/** |
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* Get the interval. |
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* |
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* @return string |
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*/ |
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private function interval(): string |
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{ |
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$offset = $this->offset(); |
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if ($offset > 0) |
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return '\'+'.$offset.' hour\''; |
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elseif ($offset === 0) |
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return '\'+0 hour\''; |
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else |
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return '\'-'.($offset * -1).' hour\''; |
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} |
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} |
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ARCANEDEV /
LaravelMetrics
