v.0.1

vendor/illuminate/database/Query/Grammars/MySqlGrammar.php

@@ -0,0 +1,284 @@
+<?php
+
+namespace Illuminate\Database\Query\Grammars;
+
+use Illuminate\Database\Query\Builder;
+use Illuminate\Support\Str;
+
+class MySqlGrammar extends Grammar
+{
+    /**
+     * The grammar specific operators.
+     *
+     * @var array
+     */
+    protected $operators = ['sounds like'];
+
+    /**
+     * Add a "where null" clause to the query.
+     *
+     * @param  string|array  $columns
+     * @param  string  $boolean
+     * @param  bool  $not
+     * @return $this
+     */
+    protected function whereNull(Builder $query, $where)
+    {
+        if ($this->isJsonSelector($where['column'])) {
+            [$field, $path] = $this->wrapJsonFieldAndPath($where['column']);
+
+            return '(json_extract('.$field.$path.') is null OR json_type(json_extract('.$field.$path.')) = \'NULL\')';
+        }
+
+        return parent::whereNull($query, $where);
+    }
+
+    /**
+     * Add a "where not null" clause to the query.
+     *
+     * @param  string|array  $columns
+     * @param  string  $boolean
+     * @return $this
+     */
+    protected function whereNotNull(Builder $query, $where)
+    {
+        if ($this->isJsonSelector($where['column'])) {
+            [$field, $path] = $this->wrapJsonFieldAndPath($where['column']);
+
+            return '(json_extract('.$field.$path.') is not null AND json_type(json_extract('.$field.$path.')) != \'NULL\')';
+        }
+
+        return parent::whereNotNull($query, $where);
+    }
+
+    /**
+     * Compile an insert ignore statement into SQL.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @param  array  $values
+     * @return string
+     */
+    public function compileInsertOrIgnore(Builder $query, array $values)
+    {
+        return Str::replaceFirst('insert', 'insert ignore', $this->compileInsert($query, $values));
+    }
+
+    /**
+     * Compile a "JSON contains" statement into SQL.
+     *
+     * @param  string  $column
+     * @param  string  $value
+     * @return string
+     */
+    protected function compileJsonContains($column, $value)
+    {
+        [$field, $path] = $this->wrapJsonFieldAndPath($column);
+
+        return 'json_contains('.$field.', '.$value.$path.')';
+    }
+
+    /**
+     * Compile a "JSON length" statement into SQL.
+     *
+     * @param  string  $column
+     * @param  string  $operator
+     * @param  string  $value
+     * @return string
+     */
+    protected function compileJsonLength($column, $operator, $value)
+    {
+        [$field, $path] = $this->wrapJsonFieldAndPath($column);
+
+        return 'json_length('.$field.$path.') '.$operator.' '.$value;
+    }
+
+    /**
+     * Compile the random statement into SQL.
+     *
+     * @param  string  $seed
+     * @return string
+     */
+    public function compileRandom($seed)
+    {
+        return 'RAND('.$seed.')';
+    }
+
+    /**
+     * Compile the lock into SQL.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @param  bool|string  $value
+     * @return string
+     */
+    protected function compileLock(Builder $query, $value)
+    {
+        if (! is_string($value)) {
+            return $value ? 'for update' : 'lock in share mode';
+        }
+
+        return $value;
+    }
+
+    /**
+     * Compile an insert statement into SQL.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @param  array  $values
+     * @return string
+     */
+    public function compileInsert(Builder $query, array $values)
+    {
+        if (empty($values)) {
+            $values = [[]];
+        }
+
+        return parent::compileInsert($query, $values);
+    }
+
+    /**
+     * Compile the columns for an update statement.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @param  array  $values
+     * @return string
+     */
+    protected function compileUpdateColumns(Builder $query, array $values)
+    {
+        return collect($values)->map(function ($value, $key) {
+            if ($this->isJsonSelector($key)) {
+                return $this->compileJsonUpdateColumn($key, $value);
+            }
+
+            return $this->wrap($key).' = '.$this->parameter($value);
+        })->implode(', ');
+    }
+
+    /**
+     * Prepare a JSON column being updated using the JSON_SET function.
+     *
+     * @param  string  $key
+     * @param  mixed  $value
+     * @return string
+     */
+    protected function compileJsonUpdateColumn($key, $value)
+    {
+        if (is_bool($value)) {
+            $value = $value ? 'true' : 'false';
+        } elseif (is_array($value)) {
+            $value = 'cast(? as json)';
+        } else {
+            $value = $this->parameter($value);
+        }
+
+        [$field, $path] = $this->wrapJsonFieldAndPath($key);
+
+        return "{$field} = json_set({$field}{$path}, {$value})";
+    }
+
+    /**
+     * Compile an update statement without joins into SQL.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @param  string  $table
+     * @param  string  $columns
+     * @param  string  $where
+     * @return string
+     */
+    protected function compileUpdateWithoutJoins(Builder $query, $table, $columns, $where)
+    {
+        $sql = parent::compileUpdateWithoutJoins($query, $table, $columns, $where);
+
+        if (! empty($query->orders)) {
+            $sql .= ' '.$this->compileOrders($query, $query->orders);
+        }
+
+        if (isset($query->limit)) {
+            $sql .= ' '.$this->compileLimit($query, $query->limit);
+        }
+
+        return $sql;
+    }
+
+    /**
+     * Prepare the bindings for an update statement.
+     *
+     * Booleans, integers, and doubles are inserted into JSON updates as raw values.
+     *
+     * @param  array  $bindings
+     * @param  array  $values
+     * @return array
+     */
+    public function prepareBindingsForUpdate(array $bindings, array $values)
+    {
+        $values = collect($values)->reject(function ($value, $column) {
+            return $this->isJsonSelector($column) && is_bool($value);
+        })->map(function ($value) {
+            return is_array($value) ? json_encode($value) : $value;
+        })->all();
+
+        return parent::prepareBindingsForUpdate($bindings, $values);
+    }
+
+    /**
+     * Compile a delete query that does not use joins.
+     *
+     * @param  \Illuminate\Database\Query\Builder  $query
+     * @param  string  $table
+     * @param  string  $where
+     * @return string
+     */
+    protected function compileDeleteWithoutJoins(Builder $query, $table, $where)
+    {
+        $sql = parent::compileDeleteWithoutJoins($query, $table, $where);
+
+        // When using MySQL, delete statements may contain order by statements and limits
+        // so we will compile both of those here. Once we have finished compiling this
+        // we will return the completed SQL statement so it will be executed for us.
+        if (! empty($query->orders)) {
+            $sql .= ' '.$this->compileOrders($query, $query->orders);
+        }
+
+        if (isset($query->limit)) {
+            $sql .= ' '.$this->compileLimit($query, $query->limit);
+        }
+
+        return $sql;
+    }
+
+    /**
+     * Wrap a single string in keyword identifiers.
+     *
+     * @param  string  $value
+     * @return string
+     */
+    protected function wrapValue($value)
+    {
+        return $value === '*' ? $value : '`'.str_replace('`', '``', $value).'`';
+    }
+
+    /**
+     * Wrap the given JSON selector.
+     *
+     * @param  string  $value
+     * @return string
+     */
+    protected function wrapJsonSelector($value)
+    {
+        [$field, $path] = $this->wrapJsonFieldAndPath($value);
+
+        return 'json_unquote(json_extract('.$field.$path.'))';
+    }
+
+    /**
+     * Wrap the given JSON selector for boolean values.
+     *
+     * @param  string  $value
+     * @return string
+     */
+    protected function wrapJsonBooleanSelector($value)
+    {
+        [$field, $path] = $this->wrapJsonFieldAndPath($value);
+
+        return 'json_extract('.$field.$path.')';
+    }
+}