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Prototype for nesting query filters

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J. King 2022-04-29 16:37:16 -04:00
parent 630536d789
commit a44fe103d8
2 changed files with 75 additions and 32 deletions
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36
lib/Misc/Query.php
View file

@ -6,16 +6,10 @@
declare(strict_types=1); declare(strict_types=1);
namespace JKingWeb\Arsse\Misc; namespace JKingWeb\Arsse\Misc;
class Query { class Query extends QueryFilter {
protected $qBody = ""; // main query body protected $qBody = ""; // main query body
protected $tBody = []; // main query parameter types protected $tBody = []; // main query parameter types
protected $vBody = []; // main query parameter values protected $vBody = []; // main query parameter values
protected $qWhere = []; // WHERE clause components
protected $tWhere = []; // WHERE clause type bindings
protected $vWhere = []; // WHERE clause binding values
protected $qWhereNot = []; // WHERE NOT clause components
protected $tWhereNot = []; // WHERE NOT clause type bindings
protected $vWhereNot = []; // WHERE NOT clause binding values
protected $group = []; // GROUP BY clause components protected $group = []; // GROUP BY clause components
protected $order = []; // ORDER BY clause components protected $order = []; // ORDER BY clause components
protected $limit = 0; protected $limit = 0;
@ -34,24 +28,6 @@ class Query {
return $this; return $this;
} }
public function setWhere(string $where, $types = null, $values = null): self {
$this->qWhere[] = $where;
if (!is_null($types)) {
$this->tWhere[] = $types;
$this->vWhere[] = $values;
}
return $this;
}
public function setWhereNot(string $where, $types = null, $values = null): self {
$this->qWhereNot[] = $where;
if (!is_null($types)) {
$this->tWhereNot[] = $types;
$this->vWhereNot[] = $values;
}
return $this;
}
public function setGroup(string ...$column): self { public function setGroup(string ...$column): self {
foreach ($column as $col) { foreach ($column as $col) {
$this->group[] = $col; $this->group[] = $col;
@ -81,11 +57,11 @@ class Query {
} }
public function getTypes(): array { public function getTypes(): array {
return ValueInfo::flatten([$this->tBody, $this->tWhere, $this->tWhereNot]); return ValueInfo::flatten([$this->tBody, $this->getWhereTypes()]);
} }
public function getValues(): array { public function getValues(): array {
return ValueInfo::flatten([$this->vBody, $this->vWhere, $this->vWhereNot]); return ValueInfo::flatten([$this->vBody, $this->getWhereValues()]);
} }
protected function buildQueryBody(): string { protected function buildQueryBody(): string {
@ -94,11 +70,7 @@ class Query {
$out .= $this->qBody; $out .= $this->qBody;
// add any WHERE terms // add any WHERE terms
if (sizeof($this->qWhere) || sizeof($this->qWhereNot)) { if (sizeof($this->qWhere) || sizeof($this->qWhereNot)) {
$where = implode(" AND ", $this->qWhere); $out .= " WHERE ".$this->buildWhereBody();
$whereNot = implode(" OR ", $this->qWhereNot);
$whereNot = strlen($whereNot) ? "NOT ($whereNot)" : "";
$where = implode(" AND ", array_filter([$where, $whereNot]));
$out .= " WHERE $where";
} }
// add any GROUP BY terms // add any GROUP BY terms
if (sizeof($this->group)) { if (sizeof($this->group)) {

71
lib/Misc/QueryFilter.php Normal file
View file

@ -0,0 +1,71 @@
<?php
/** @license MIT
* Copyright 2017 J. King, Dustin Wilson et al.
* See LICENSE and AUTHORS files for details */
declare(strict_types=1);
namespace JKingWeb\Arsse\Misc;
class QueryFilter {
protected $qWhere = []; // WHERE clause components
protected $tWhere = []; // WHERE clause type bindings
protected $vWhere = []; // WHERE clause binding values
protected $qWhereNot = []; // WHERE NOT clause components
protected $tWhereNot = []; // WHERE NOT clause type bindings
protected $vWhereNot = []; // WHERE NOT clause binding values
public $filterRestrictive = true;
public function setWhere(string $where, $types = null, $values = null): self {
$this->qWhere[] = $where;
if (!is_null($types)) {
$this->tWhere[] = $types ?? [];
$this->vWhere[] = $values;
}
return $this;
}
public function setWhereNot(string $where, $types = null, $values = null): self {
$this->qWhereNot[] = $where;
if (!is_null($types)) {
$this->tWhereNot[] = $types;
$this->vWhereNot[] = $values;
}
return $this;
}
public function setFilter(self $filter): self {
$this->qWhere[] = "(".$filter->buildWhereBody().")";
$this->tWhere[] = $filter->getWhereTypes();
$this->vWhere[] = $filter->getWhereValues();
return $this;
}
protected function getWhereTypes(): array {
return ValueInfo::flatten([$this->tWhere, $this->tWhereNot]);
}
protected function getWhereValues(): array {
return ValueInfo::flatten([$this->vWhere, $this->vWhereNot]);
}
public function getTypes(): array {
return $this->getWhereTypes();
}
public function getValues(): array {
return $this->getWhereValues();
}
protected function buildWhereBody(): string {
$glue = $this->filterRestrictive ? " AND " : " OR ";
$where = implode($glue, $this->qWhere);
$whereNot = implode(" OR ", $this->qWhereNot);
$whereNot = strlen($whereNot) ? "NOT ($whereNot)" : "";
return implode($glue, array_filter([$where, $whereNot]));
}
public function __toString() {
return $this->buildWhereBody();
}
}