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    <h3>Editing: MySqlGrammar.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace Illuminate\Database\Query\Grammars;

use Illuminate\Database\Query\Builder;
use Illuminate\Support\Str;

class MySqlGrammar extends Grammar
{
    /**
     * The grammar specific operators.
     *
     * @var string[]
     */
    protected $operators = ['sounds like'];

    /**
     * Add a &quot;where null&quot; clause to the query.
     *
     * @param  \Illuminate\Database\Query\Builder  $query
     * @param  array  $where
     * @return string
     */
    protected function whereNull(Builder $query, $where)
    {
        if ($this-&gt;isJsonSelector($where['column'])) {
            [$field, $path] = $this-&gt;wrapJsonFieldAndPath($where['column']);

            return '(json_extract('.$field.$path.') is null OR json_type(json_extract('.$field.$path.')) = \'NULL\')';
        }

        return parent::whereNull($query, $where);
    }

    /**
     * Add a &quot;where not null&quot; clause to the query.
     *
     * @param  \Illuminate\Database\Query\Builder  $query
     * @param  array  $where
     * @return string
     */
    protected function whereNotNull(Builder $query, $where)
    {
        if ($this-&gt;isJsonSelector($where['column'])) {
            [$field, $path] = $this-&gt;wrapJsonFieldAndPath($where['column']);

            return '(json_extract('.$field.$path.') is not null AND json_type(json_extract('.$field.$path.')) != \'NULL\')';
        }

        return parent::whereNotNull($query, $where);
    }

    /**
     * Compile a &quot;where fulltext&quot; clause.
     *
     * @param  \Illuminate\Database\Query\Builder  $query
     * @param  array  $where
     * @return string
     */
    public function whereFullText(Builder $query, $where)
    {
        $columns = $this-&gt;columnize($where['columns']);

        $value = $this-&gt;parameter($where['value']);

        $mode = ($where['options']['mode'] ?? []) === 'boolean'
            ? ' in boolean mode'
            : ' in natural language mode';

        $expanded = ($where['options']['expanded'] ?? []) &amp;&amp; ($where['options']['mode'] ?? []) !== 'boolean'
            ? ' with query expansion'
            : '';

        return &quot;match ({$columns}) against (&quot;.$value.&quot;{$mode}{$expanded})&quot;;
    }

    /**
     * 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', $this-&gt;compileInsert($query, $values));
    }

    /**
     * Compile a &quot;JSON contains&quot; statement into SQL.
     *
     * @param  string  $column
     * @param  string  $value
     * @return string
     */
    protected function compileJsonContains($column, $value)
    {
        [$field, $path] = $this-&gt;wrapJsonFieldAndPath($column);

        return 'json_contains('.$field.', '.$value.$path.')';
    }

    /**
     * Compile a &quot;JSON length&quot; statement into SQL.
     *
     * @param  string  $column
     * @param  string  $operator
     * @param  string  $value
     * @return string
     */
    protected function compileJsonLength($column, $operator, $value)
    {
        [$field, $path] = $this-&gt;wrapJsonFieldAndPath($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)-&gt;map(function ($value, $key) {
            if ($this-&gt;isJsonSelector($key)) {
                return $this-&gt;compileJsonUpdateColumn($key, $value);
            }

            return $this-&gt;wrap($key).' = '.$this-&gt;parameter($value);
        })-&gt;implode(', ');
    }

    /**
     * Compile an &quot;upsert&quot; statement into SQL.
     *
     * @param  \Illuminate\Database\Query\Builder  $query
     * @param  array  $values
     * @param  array  $uniqueBy
     * @param  array  $update
     * @return string
     */
    public function compileUpsert(Builder $query, array $values, array $uniqueBy, array $update)
    {
        $sql = $this-&gt;compileInsert($query, $values).' on duplicate key update ';

        $columns = collect($update)-&gt;map(function ($value, $key) {
            return is_numeric($key)
                ? $this-&gt;wrap($value).' = values('.$this-&gt;wrap($value).')'
                : $this-&gt;wrap($key).' = '.$this-&gt;parameter($value);
        })-&gt;implode(', ');

        return $sql.$columns;
    }

    /**
     * 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 = $this-&gt;parameter($value);
        }

        [$field, $path] = $this-&gt;wrapJsonFieldAndPath($key);

        return &quot;{$field} = json_set({$field}{$path}, {$value})&quot;;
    }

    /**
     * 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-&gt;orders)) {
            $sql .= ' '.$this-&gt;compileOrders($query, $query-&gt;orders);
        }

        if (isset($query-&gt;limit)) {
            $sql .= ' '.$this-&gt;compileLimit($query, $query-&gt;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)-&gt;reject(function ($value, $column) {
            return $this-&gt;isJsonSelector($column) &amp;&amp; is_bool($value);
        })-&gt;map(function ($value) {
            return is_array($value) ? json_encode($value) : $value;
        })-&gt;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-&gt;orders)) {
            $sql .= ' '.$this-&gt;compileOrders($query, $query-&gt;orders);
        }

        if (isset($query-&gt;limit)) {
            $sql .= ' '.$this-&gt;compileLimit($query, $query-&gt;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] = $this-&gt;wrapJsonFieldAndPath($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] = $this-&gt;wrapJsonFieldAndPath($value);

        return 'json_extract('.$field.$path.')';
    }
}
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