unable to validate table in controller of laravel 5.4 - php

Question

i have function in controller that repeatedly generates a table via ajax request
i want to validate table every time ajax makes request to this function
how can i validate the start date and law reg no of the table when ajax fetches it with click of button.
my code for function:
public function postlawsdata()
{
$lawdata = Input::get('law_type_id');
$sublawdata = Input::get('law_sub_type_id');
$start_date = Input::get('start_date');
$res_div = '';
$sub_law_count = count($sublawdata);
$validate_laws = '';
if (count($sublawdata) > 0) {
for ($i = 0; $i < count($lawdata); $i++) {
$law_details = DB::table('tbl_law_master')->where('id', $lawdata[$i])->select('tbl_law_master.id as law_id', 'tbl_law_master.lm_id', 'tbl_law_master.law_name')->first();
$sublaw_details = DB::table('tbl_law_sub_master')
->where('tbl_law_sub_master.lm_id', $lawdata[$i])
->whereNull('tbl_law_sub_master.deleted_at')
->select('tbl_law_sub_master.id as sublaw_id', 'tbl_law_sub_master.sub_law_name', 'tbl_law_sub_master.lms_id')->get();
if (count($sublaw_details) > 0) {
$res_div .= '<table width="100%" border="0" class="table table-striped table-bordered table-hover">';
$res_div .= '<tr>
<td colspan="2" rowspan="2">
<strong>' . $law_details->lm_id . ' (' . $law_details->law_name . ')</strong>
</td>
<td >
<span class="required" aria-required="true">* </span><input type="text" value="' . $start_date . '" placeholder="DD-MM-YYYY (Start Date)" name="law_start_date[]" id="law_start_date" att_law_id="' . $lawdata[$i] . '" class="date-picker required locationformstyle locationparentsd dynamiclocationparentsd' . $lawdata[$i] . '">
</td></tr><tr><td>
<span class="required" aria-required="true">* </span><input type="text" placeholder="Law Registration No." name="law_reg_no" id="law_reg_no" class="locationformstyle required">
</td>
</tr>';
foreach ($sublaw_details as $sublawdetails) {
if (in_array($sublawdetails->sublaw_id, $sublawdata)) {
$res_div .= '<tr>
<td width="220">Start Date: <input type="text" name="sub_law_start_date[]" placeholder="DD-MM-YYYY" onfocus="this.blur()" class="locationformstyle date-picker dynamiclocationparentsd' . $lawdata[$i] . '" att_law_id="' . $lawdata[$i] . '"> </td>
<td width="220">End Date: <input type="text" name="sub_law_end_date[]" placeholder="DD-MM-YYYY" onfocus="this.blur()" class="locationformstyle date-picker"></td>
<td align="left"><strong>' . $sublawdetails->lms_id . ' (' . $sublawdetails->sub_law_name . ')</strong>
<input type="hidden" class="locationformstyle" name="company_sub_laws[]" value="' . $sublawdetails->sublaw_id . '">
</td>
</tr>
';
}
}
$res_div .= '</table>';
}
}
} else {
$validate_laws = 'Please Select Atleast One Law';
}
$data = array(
'law_info' => $res_div,
'validate_laws' => $validate_laws,
'sub_law_count' => $sub_law_count
);
return json_encode($data);
}

Answer 1

create a new validator like so;
public function postlawsdata()
{

$validator = Validator::make($request->all(), [
'start_date' => 'required',
//add other fields here with custom validation rules
]);

if ($validator->passes()) {
$lawdata = Input::get('law_type_id');
$sublawdata = Input::get('law_sub_type_id');
$start_date = Input::get('start_date');
$res_div = '';
$sub_law_count = count($sublawdata);
$validate_laws = '';
if (count($sublawdata) > 0) {
for ($i = 0; $i < count($lawdata); $i++) {
$law_details = DB::table('tbl_law_master')->where('id', $lawdata[$i])->select('tbl_law_master.id as law_id', 'tbl_law_master.lm_id', 'tbl_law_master.law_name')->first();
$sublaw_details = DB::table('tbl_law_sub_master')
->where('tbl_law_sub_master.lm_id', $lawdata[$i])
->whereNull('tbl_law_sub_master.deleted_at')
->select('tbl_law_sub_master.id as sublaw_id', 'tbl_law_sub_master.sub_law_name', 'tbl_law_sub_master.lms_id')->get();
if (count($sublaw_details) > 0) {
$res_div .= '<table width="100%" border="0" class="table table-striped table-bordered table-hover">';
$res_div .= '<tr>
<td colspan="2" rowspan="2">
<strong>' . $law_details->lm_id . ' (' . $law_details->law_name . ')</strong>
</td>
<td >
<span class="required" aria-required="true">* </span><input type="text" value="' . $start_date . '" placeholder="DD-MM-YYYY (Start Date)" name="law_start_date[]" id="law_start_date" att_law_id="' . $lawdata[$i] . '" class="date-picker required locationformstyle locationparentsd dynamiclocationparentsd' . $lawdata[$i] . '">
</td></tr><tr><td>
<span class="required" aria-required="true">* </span><input type="text" placeholder="Law Registration No." name="law_reg_no" id="law_reg_no" class="locationformstyle required">
</td>
</tr>';
foreach ($sublaw_details as $sublawdetails) {
if (in_array($sublawdetails->sublaw_id, $sublawdata)) {
$res_div .= '<tr>
<td width="220">Start Date: <input type="text" name="sub_law_start_date[]" placeholder="DD-MM-YYYY" onfocus="this.blur()" class="locationformstyle date-picker dynamiclocationparentsd' . $lawdata[$i] . '" att_law_id="' . $lawdata[$i] . '"> </td>
<td width="220">End Date: <input type="text" name="sub_law_end_date[]" placeholder="DD-MM-YYYY" onfocus="this.blur()" class="locationformstyle date-picker"></td>
<td align="left"><strong>' . $sublawdetails->lms_id . ' (' . $sublawdetails->sub_law_name . ')</strong>
<input type="hidden" class="locationformstyle" name="company_sub_laws[]" value="' . $sublawdetails->sublaw_id . '">
</td>
</tr>
';
}
}
$res_div .= '</table>';
}
}
} else {
$validate_laws = 'Please Select Atleast One Law';
}
$data = array(
'law_info' => $res_div,
'validate_laws' => $validate_laws,
'sub_law_count' => $sub_law_count
);
return json_encode($data);

}

return response()->json(['error'=>$validator->errors()->all()]);
}
add use Validator; at the top.