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Remove most unused features of the query builder

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Experience has proved programmatically setting joins is not useful, and
getting the types and values of query parts was not being maintained.

The programmatic setting of GROUP BY may be useful in future, however.
This commit is contained in:
J. King 2019-06-21 12:00:23 -04:00
parent 62fe3a7298
commit 92b1626dba
1 changed files with 6 additions and 65 deletions
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71
lib/Misc/Query.php
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@ -13,10 +13,6 @@ class Query {
protected $qCTE = []; // Common table expression query components
protected $tCTE = []; // Common table expression type bindings
protected $vCTE = []; // Common table expression binding values
protected $jCTE = []; // Common Table Expression joins
protected $qJoin = []; // JOIN clause components
protected $tJoin = []; // JOIN clause type bindings
protected $vJoin = []; // JOIN clause binding values
protected $qWhere = []; // WHERE clause components
protected $tWhere = []; // WHERE clause type bindings
protected $vWhere = []; // WHERE clause binding values
@ -42,24 +38,12 @@ class Query {
return true;
}
public function setCTE(string $tableSpec, string $body, $types = null, $values = null, string $join = ''): bool {
public function setCTE(string $tableSpec, string $body, $types = null, $values = null): bool {
$this->qCTE[] = "$tableSpec as ($body)";
if (!is_null($types)) {
$this->tCTE[] = $types;
$this->vCTE[] = $values;
}
if (strlen($join)) { // the CTE might only participate in subqueries rather than a join on the main query
$this->jCTE[] = $join;
}
return true;
}
public function setJoin(string $join, $types = null, $values = null): bool {
$this->qJoin[] = $join;
if (!is_null($types)) {
$this->tJoin[] = $types;
$this->vJoin[] = $values;
}
return true;
}
@ -88,12 +72,8 @@ class Query {
return true;
}
public function setOrder(string $order, bool $prepend = false): bool {
if ($prepend) {
array_unshift($this->order, $order);
} else {
$this->order[] = $order;
}
public function setOrder(string $order): bool {
$this->order[] = $order;
return true;
}
@ -103,11 +83,10 @@ class Query {
return true;
}
public function pushCTE(string $tableSpec, string $join = ''): bool {
public function pushCTE(string $tableSpec): bool {
// this function takes the query body and converts it to a common table expression, putting it at the bottom of the existing CTE stack
// all WHERE, ORDER BY, and LIMIT parts belong to the new CTE and are removed from the main query
$this->setCTE($tableSpec, $this->buildQueryBody(), [$this->tBody, $this->tWhere, $this->tWhereNot], [$this->vBody, $this->vWhere, $this->vWhereNot]);
$this->jCTE = [];
$this->tBody = [];
$this->vBody = [];
$this->qWhere = [];
@ -116,15 +95,9 @@ class Query {
$this->qWhereNot = [];
$this->tWhereNot = [];
$this->vWhereNot = [];
$this->qJoin = [];
$this->tJoin = [];
$this->vJoin = [];
$this->order = [];
$this->group = [];
$this->setLimit(0, 0);
if (strlen($join)) {
$this->jCTE[] = $join;
}
return true;
}
@ -144,49 +117,17 @@ class Query {
}
public function getTypes(): array {
return [$this->tCTE, $this->tBody, $this->tJoin, $this->tWhere, $this->tWhereNot];
return [$this->tCTE, $this->tBody, $this->tWhere, $this->tWhereNot];
}
public function getValues(): array {
return [$this->vCTE, $this->vBody, $this->vJoin, $this->vWhere, $this->vWhereNot];
}
public function getJoinTypes(): array {
return $this->tJoin;
}
public function getJoinValues(): array {
return $this->vJoin;
}
public function getWhereTypes(): array {
return $this->tWhere;
}
public function getWhereValues(): array {
return $this->vWhere;
}
public function getCTETypes(): array {
return $this->tCTE;
}
public function getCTEValues(): array {
return $this->vCTE;
return [$this->vCTE, $this->vBody, $this->vWhere, $this->vWhereNot];
}
protected function buildQueryBody(): string {
$out = "";
// add the body
$out .= $this->qBody;
if (sizeof($this->qCTE)) {
// add any joins against CTEs
$out .= " ".implode(" ", $this->jCTE);
}
// add any JOINs
if (sizeof($this->qJoin)) {
$out .= " ".implode(" ", $this->qJoin);
}
// add any WHERE terms
if (sizeof($this->qWhere) || sizeof($this->qWhereNot)) {
$where = implode(" AND ", $this->qWhere);