get date in a controller in cakephp - date

Question

I have a date form with datapicker and I want to send these dates to a controller to place these dates in a query, my problem is that I do not know how to capture them to insert them in the query, in the view I have:
<?php $this->end(); ?>
<?=$this->Form->create(false, array('type' => 'get', 'controller' => 'informes', 'action' => 'crm')); ?>
<div class="row">
<div class="col-sm-2">Fecha del Informe</div>
<div class="col-sm-4">
<div class="input-daterange input-group" id="datepicker">
<span class="input-group-addon">Desde</span>
<input type="text" class="input-sm form-control" name="start" id="start"/>
<span class="input-group-addon">hasta</span>
<input type="text" class="input-sm form-control" name="end" id="end"/>
</div>
</div>
<div class="col-sm-2">
</div>
<div class="col-sm-2"><button class="btn btn-xs btn-primary" type="submit">Generar Informe</button></div>
</div>
<?=$this->Form->end(); ?>
and in the controller :
// Loading different models
$this->loadModel('Centro');
$this->loadModel('Items');
$this->loadModel('Sesion');
$this->loadModel('Zona');
$this->loadModel('TratamientosZona');
$this->loadModel('tratamiento');
$this->loadModel('Paciente');
// My query with CakePHP ORM
$sesion_pagada = $this->Centro->find('all', array(
array('fields' => 'Centro.nombre', SUM(IF('Paciente.sexo' = 'F', 'Zona.valor_mujer', 'Zona.valor_hombre')) AS suma
'joins' => array(
array('alias' => 'Sesion', 'table' => 'sesions', 'type' => 'INNER',
'conditions' => 'Centro.id = Sesion.centro_id'),
array('alias' => 'Items', 'table' => 'items', 'type' => 'LEFT',
'conditions' => 'Sesion.id = Item.sesion_id'),
array('alias'), => 'Zona', 'table' => 'zonas', 'type' => 'INNER',
'conditions' => 'Item.zona_id = Zona.id',
array('alias' => 'TratamientosZona', 'table' => 'tratamientos_zonas', 'type' => 'INNER',
'conditions' => 'Zona.id = TratamientosZona.zona_id'),
array('alias' => 'Tratamiento', 'table' => 'tratamientos', 'type' => 'INNER',
'conditions' => 'Tratamiento_zona.tratamiento_id = Tratamiento.id'),
array('alias' => 'Paciente', 'table' => 'pacientes', 'type' => 'INNER',
'conditions' => 'Tratamiento.paciente_id = Paciente.id')
),
'conditions' => array(
'Sesion.estado_id =' => 5,
'Sesion.fecha BETWEEN ? and ?'=> array( $query['start'], date('Y-m-d'))
)
)));

Answer 1

You can use this code to get data from GET request:
// For cakePHP 2.x
$start = $this->request->query['start'];
$end = $this->request->query['end'];
// For cakePHP 3.x >= 3.4.0
$start = $this->request->getQuery('start');
$end = $this->request->getQuery('end');
// cakePHP 3.x <= 3.4.0
$start = $this->request->query('start');
$end = $this->request->query('end');