the best codes

1. TransponderInitialization Code:
#include<LiquidCrystal.h>
#include<Keypad.h>
//initialize the library with the numbers of the interface pins
LiquidCrystal lcd(14,15,16,17,18,19);
//4x4 Matrix key pad
const byte ROWS = 4; // Four rows
const byte COLS = 3; // Four columns
// Define the Keymap
char keys[ROWS][COLS] =
{
{'1','2','3'},
{'4','5','6'},
{'7','8','9'},
{'*','0','#'}
};
// Connect keypad ROW0, ROW1, ROW2 and ROW3 to Arduino pins.
byte rowPins[ROWS] = { 5, 4, 3, 2 };
// Connect keypad COL0, COL1, COL2 and COL3 to Arduino pins.
byte colPins[COLS] = { 8, 7, 6 };
// Create the Keypad
Keypad kpd = Keypad( makeKeymap(keys), rowPins,colPins, ROWS, COLS );
void setup()
{
// set up the LCD's number of columns and rows:
Serial.begin(9600);
Serial.println("Begin");
lcd.begin(16, 2);
// Print a message to the LCD.
lcd.print("KEYPAD LCD TEST");
Serial.println("Begin 2");
}
void loop()
{
char key=kpd.getKey();
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 1);
// print the number of seconds since reset:
lcd.print(key);
// lcd.print(millis() / 1000);
// Check for a valid key
if(key)
{
// setthe cursor to column 9, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(9, 1);
//Print the detected key
lcd.print("KEY= ");

2. lcd.print(key);
Serial.println(key);
}
}
ESP Module (For Band) code:
#include "driver/spi_interface.h"
#include "eagle_soc.h"
#include "osapi.h"
// Show the spi registers.
#define SHOWSPIREG(i) __ShowRegValue(__func__, __LINE__);
/**
* @brief Print debug information.
*
*/
void __ShowRegValue(const char * func, uint32_t line)
{
int i;
uint32_t regAddr = 0x60000140; // SPI--0x60000240, HSPI--0x60000140;
os_printf("rn FUNC[%s],line[%d]rn", func, line);
os_printf(" SPI_ADDR [0x%08x]rn", READ_PERI_REG(SPI_ADDR(SpiNum_HSPI)));
os_printf(" SPI_CMD [0x%08x]rn", READ_PERI_REG(SPI_CMD(SpiNum_HSPI)));
os_printf(" SPI_CTRL [0x%08x]rn", READ_PERI_REG(SPI_CTRL(SpiNum_HSPI)));
os_printf(" SPI_CTRL2 [0x%08x]rn", READ_PERI_REG(SPI_CTRL2(SpiNum_HSPI)));
os_printf(" SPI_CLOCK [0x%08x]rn", READ_PERI_REG(SPI_CLOCK(SpiNum_HSPI)));
os_printf(" SPI_RD_STATUS [0x%08x]rn",
READ_PERI_REG(SPI_RD_STATUS(SpiNum_HSPI)));
os_printf(" SPI_WR_STATUS [0x%08x]rn",
READ_PERI_REG(SPI_WR_STATUS(SpiNum_HSPI)));
os_printf(" SPI_USER [0x%08x]rn", READ_PERI_REG(SPI_USER(SpiNum_HSPI)));
os_printf(" SPI_USER1 [0x%08x]rn", READ_PERI_REG(SPI_USER1(SpiNum_HSPI)));
os_printf(" SPI_USER2 [0x%08x]rn", READ_PERI_REG(SPI_USER2(SpiNum_HSPI)));
os_printf(" SPI_PIN [0x%08x]rn", READ_PERI_REG(SPI_PIN(SpiNum_HSPI)));
os_printf(" SPI_SLAVE [0x%08x]rn", READ_PERI_REG(SPI_SLAVE(SpiNum_HSPI)));
os_printf(" SPI_SLAVE1 [0x%08x]rn", READ_PERI_REG(SPI_SLAVE1(SpiNum_HSPI)));
os_printf(" SPI_SLAVE2 [0x%08x]rn", READ_PERI_REG(SPI_SLAVE2(SpiNum_HSPI)));
for (i = 0; i < 16; ++i) {
os_printf(" ADDR[0x%08x],Value[0x%08x]rn", regAddr, READ_PERI_REG(regAddr));
regAddr += 4;
}
}
// SPI interrupt callback function.
void spi_slave_isr_sta(void *para)

3. {
uint32 regvalue;
uint32 statusW, statusR, counter;
if (READ_PERI_REG(0x3ff00020)&BIT4) {
//following 3 lines is to clear isr signal
CLEAR_PERI_REG_MASK(SPI_SLAVE(SpiNum_SPI), 0x3ff);
} else if (READ_PERI_REG(0x3ff00020)&BIT7) { //bit7 is for hspi isr,
regvalue = READ_PERI_REG(SPI_SLAVE(SpiNum_HSPI));
os_printf("spi_slave_isr_sta SPI_SLAVE[0x%08x]nr", regvalue);
SPIIntClear(SpiNum_HSPI);
SET_PERI_REG_MASK(SPI_SLAVE(SpiNum_HSPI), SPI_SYNC_RESET);
SPIIntClear(SpiNum_HSPI);
SPIIntEnable(SpiNum_HSPI, SpiIntSrc_WrStaDone
| SpiIntSrc_RdStaDone
| SpiIntSrc_WrBufDone
| SpiIntSrc_RdBufDone);
if (regvalue & SPI_SLV_WR_BUF_DONE) {
// User can get data from the W0~W7
os_printf("spi_slave_isr_sta : SPI_SLV_WR_BUF_DONEnr");
} else if (regvalue & SPI_SLV_RD_BUF_DONE) {
// TO DO
os_printf("spi_slave_isr_sta : SPI_SLV_RD_BUF_DONEnr");
}
if (regvalue & SPI_SLV_RD_STA_DONE) {
statusR = READ_PERI_REG(SPI_RD_STATUS(SpiNum_HSPI));
statusW = READ_PERI_REG(SPI_WR_STATUS(SpiNum_HSPI));
os_printf("spi_slave_isr_sta : SPI_SLV_RD_STA_DONE[R=0x%08x,W=0x%08x]nr",
statusR, statusW);
}
if (regvalue & SPI_SLV_WR_STA_DONE) {
statusR = READ_PERI_REG(SPI_RD_STATUS(SpiNum_HSPI));
statusW = READ_PERI_REG(SPI_WR_STATUS(SpiNum_HSPI));
os_printf("spi_slave_isr_sta : SPI_SLV_WR_STA_DONE[R=0x%08x,W=0x%08x]nr",
statusR, statusW);
}
if ((regvalue & SPI_TRANS_DONE) && ((regvalue & 0xf) == 0)) {
os_printf("spi_slave_isr_sta : SPI_TRANS_DONEnr");
}
SHOWSPIREG(SpiNum_HSPI);
}
}
// Test spi master interfaces.
void ICACHE_FLASH_ATTR spi_master_test()
{
SpiAttr hSpiAttr;
hSpiAttr.bitOrder = SpiBitOrder_MSBFirst;
hSpiAttr.speed = SpiSpeed_10MHz;

4. hSpiAttr.mode = SpiMode_Master;
hSpiAttr.subMode = SpiSubMode_0;
// Init HSPI GPIO
WRITE_PERI_REG(PERIPHS_IO_MUX, 0x105);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, 2);//configure io to spi mode
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode
SPIInit(SpiNum_HSPI, &hSpiAttr);
uint32_t value = 0xD3D4D5D6;
uint32_t sendData[8] ={ 0 };
SpiData spiData;
os_printf("rn ============= spi init master ============= rn");
// Test 8266 slave.Communication format: 1byte command + 1bytes address + x bytes Data.
os_printf("rn Master send 32 bytes data to slave(8266)rn");
os_memset(sendData, 0, sizeof(sendData));
sendData[0] = 0x55565758;
sendData[1] = 0x595a5b5c;
sendData[2] = 0x5d5e5f60;
sendData[3] = 0x61626364;
sendData[4] = 0x65666768;
sendData[5] = 0x696a6b6c;
sendData[6] = 0x6d6e6f70;
sendData[7] = 0x71727374;
spiData.cmd = MASTER_WRITE_DATA_TO_SLAVE_CMD;
spiData.cmdLen = 1;
spiData.addr = &value;
spiData.addrLen = 4;
spiData.data = sendData;
spiData.dataLen = 32;
SPIMasterSendData(SpiNum_HSPI, &spiData);
os_printf("rn Master receive 24 bytes data from slave(8266)rn");
spiData.cmd = MASTER_READ_DATA_FROM_SLAVE_CMD;
spiData.cmdLen = 1;
spiData.addr = &value;
spiData.addrLen = 4;
spiData.data = sendData;
spiData.dataLen = 24;
os_memset(sendData, 0, sizeof(sendData));
SPIMasterRecvData(SpiNum_HSPI, &spiData);
os_printf(" Recv Slave data0[0x%08x]rn", sendData[0]);
os_printf(" Recv Slave data1[0x%08x]rn", sendData[1]);
os_printf(" Recv Slave data2[0x%08x]rn", sendData[2]);
os_printf(" Recv Slave data3[0x%08x]rn", sendData[3]);
os_printf(" Recv Slave data4[0x%08x]rn", sendData[4]);
os_printf(" Recv Slave data5[0x%08x]rn", sendData[5]);

5. value = SPIMasterRecvStatus(SpiNum_HSPI);
os_printf("rn Master read slave(8266) status[0x%02x]rn", value);
SPIMasterSendStatus(SpiNum_HSPI, 0x99);
os_printf("rn Master write status[0x99] to slavue(8266).rn");
SHOWSPIREG(SpiNum_HSPI);
// Test others slave.Communication format:0bytes command + 0 bytes address + x bytes Data
#if 0
os_printf("rn Master send 4 bytes data to slavern");
os_memset(sendData, 0, sizeof(sendData));
sendData[0] = 0x2D3E4F50;
spiData.cmd = MASTER_WRITE_DATA_TO_SLAVE_CMD;
spiData.cmdLen = 0;
spiData.addr = &addr;
spiData.addrLen = 0;
spiData.data = sendData;
spiData.dataLen = 4;
SPIMasterSendData(SpiNum_HSPI, &spiData);
os_printf("rn Master receive 4 bytes data from slavern");
spiData.cmd = MASTER_READ_DATA_FROM_SLAVE_CMD;
spiData.cmdLen = 0;
spiData.addr = &addr;
spiData.addrLen = 0;
spiData.data = sendData;
spiData.dataLen = 4;
os_memset(sendData, 0, sizeof(sendData));
SPIMasterRecvData(SpiNum_HSPI, &spiData);
os_printf(" Recv Slave data[0x%08x]rn", sendData[0]);
#endif
}
// Test spi slave interfaces.
void ICACHE_FLASH_ATTR spi_slave_test()
{
//
SpiAttr hSpiAttr;
hSpiAttr.bitOrder = SpiBitOrder_MSBFirst;
hSpiAttr.speed = 0;
hSpiAttr.mode = SpiMode_Slave;
hSpiAttr.subMode = SpiSubMode_0;
// Init HSPI GPIO
WRITE_PERI_REG(PERIPHS_IO_MUX, 0x105);
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDI_U, 2);//configure io to spi mode
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTCK_U, 2);//configure io to spi mode
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTMS_U, 2);//configure io to spi mode
PIN_FUNC_SELECT(PERIPHS_IO_MUX_MTDO_U, 2);//configure io to spi mode

6. os_printf("rn ============= spi init slave =============rn");
SPIInit(SpiNum_HSPI, &hSpiAttr);
// Set spi interrupt information.
SpiIntInfo spiInt;
spiInt.src = (SpiIntSrc_TransDone
| SpiIntSrc_WrStaDone
|SpiIntSrc_RdStaDone
|SpiIntSrc_WrBufDone
|SpiIntSrc_RdBufDone);
spiInt.isrFunc = spi_slave_isr_sta;
SPIIntCfg(SpiNum_HSPI, &spiInt);
// SHOWSPIREG(SpiNum_HSPI);
SPISlaveRecvData(SpiNum_HSPI);
uint32_t sndData[8] = { 0 };
sndData[0] = 0x35343332;
sndData[1] = 0x39383736;
sndData[2] = 0x3d3c3b3a;
sndData[3] = 0x11103f3e;
sndData[4] = 0x15141312;
sndData[5] = 0x19181716;
sndData[6] = 0x1d1c1b1a;
sndData[7] = 0x21201f1e;
SPISlaveSendData(SpiNum_HSPI, sndData, 8);
WRITE_PERI_REG(SPI_RD_STATUS(SpiNum_HSPI), 0x8A);
WRITE_PERI_REG(SPI_WR_STATUS(SpiNum_HSPI), 0x83);
}
void spi_interface_test(void)
{
// Test spi interfaces.
os_printf("rn
=======================================================rn");
os_printf("t ESP8266 %s application nr", __func__);
os_printf("tt SDK version:%s nr", system_get_sdk_version());
os_printf("tt Complie time:%s nr", __TIME__);
os_printf("rn
=======================================================rn");
#if 0
spi_master_test();
#else
spi_slave_test();
#endif
}
Attendance Report Generation:
<?php

7. /*
Returns Attendance Master Details
@param $response MIXED response variable contains error code or success data
@param $mst_id INT attendance master id
@param $faculty_id Bool true, if need to match for current logged in faculty for verification
@param $now Bool true, if need to get current active academice calendars only
*/
use ZendDbSqlExpression;
use ZendDbSqlSelect;
function getMstMetaData(&$response,$mst_id,$faculty_id=true,$now=true)
{
if(!ctype_digit($mst_id))
{ $response = array(
'code' => HTTP_Status::BAD_REQUEST,
'message' => 'Master ID must be digits only'
);
return false;
}
$meta_data=array(
"batchno" => null,
"division" => null,
"inst_name" => null,
"prog_name" => null,
"dept_name" => null,
"semester" => null,
"subject" => null
);
try
{ $dbh=new MyDbCon;
$dbh->select("Attendance_Master");
$dbh->select->where->equalTo("attd_mst_id",$mst_id);
$dbh->prepare();
if($dbh->execute())
{ $tmp=$dbh->fetchAssoc()[0];
$meta_data['batchno']=$tmp['batchno'];
$meta_data['division']=$tmp['division'];
}
else
{ $response = array(
'code' => HTTP_Status::FORBIDDEN
);
return false;
}
$where_funcs=array(
'=' => 'equalTo',
'<' => 'lessThan',
'>' => 'greaterThan',
'<=' => 'lessThanOrEqualTo',
'>=' => 'greaterThanOrEqualTo',
'like' => 'like'
);
$where=array(

8. "attd_mst_id" => $mst_id
);
if($now)
{ try
{ $now=(new DateTime())->format("Y-m-d");
//throw new Exception("asd");
}catch(Exception $e)
{ $response = array(
'code' => HTTP_Status::INTERNAL_SERVER_ERROR
);
return false;
}
$where['end_date'] = "{$now}:>=";
$where['start_date'] = "{$now}:<=";
}
if($faculty_id && !Privilege_Master::is_super($_SESSION['privilege_id']))
{ $where['faculty_id'] = $_SESSION['faculty_id'];
}
$join_tables=array(
"Academic_Calendar",
"Teaches",
"Syllabus"
);
$join_on=array(
"Academic_Calendar" =>
"Academic_Calendar.ac_id=Attendance_Master.ac_id",
"Teaches" => "Attendance_Master.teaches_id=Teaches.teaches_id",
"Syllabus" => "Teaches.syllabus_id=Syllabus.syllabus_id"
);
$join_columns=array(
"Academic_Calendar" => array("start_date","end_date"),
"Teaches" => array(/*"teaches_id","faculty_id"*/),
"Syllabus" => array(/*"syllabus_id",*/"sub_id","sub_offered_sem","o_id")
);
$dbh=new MyDbCon;
$dbh->select("Attendance_Master");
$dbh->select->columns(array());
// Join Tables
foreach($join_tables as $val)
{ $cols=Select::SQL_STAR;
if(isset($join_columns[$val]))
$cols=$join_columns[$val];
$dbh->join($val,$join_on[$val],$cols);
}
// Where Clause
foreach($where as $key=>$val)
{
$vals=explode(':',$val);
$wh=$where_funcs['='];
if(!empty($vals[1]) && isset($where_funcs[$vals[1]]))
$wh=$where_funcs[$vals[1]];
$dbh->select->where->$wh($key,$vals[0]);

9. }
$dbh->prepare();
if($dbh->execute())
{ $objs=$dbh->fetchAssoc();
$meta_data['semester']=$objs[0]['sub_offered_sem'];
$meta_data['start_date']=$objs[0]['start_date'];
$meta_data['end_date']=$objs[0]['end_date'];
$names=Offers_Master::getNames($objs[0]['o_id']);
$meta_data['subject']=Sub_Master::getSubjectName($objs[0]['sub_id']);
/*$meta_data['o_id']=$objs[0]['o_id'];
$meta_data['sub_id']=$objs[0]['sub_id'];
$meta_data['syllabus_id']=$objs[0]['syllabus_id'];
$meta_data['teaches_id']=$objs[0]['teaches_id'];
$meta_data['faculty_id']=$objs[0]['faculty_id'];*/
if($names)
{ $meta_data['inst_name']=$names['inst_name'];
$meta_data['prog_name']=$names['prog_name'];
$meta_data['dept_name']=$names['dept_name'];
}
//var_dump($meta_data);
//var_dump($objs);
$response=$meta_data;
return true;
}
$response = array(
'code' => HTTP_Status::FORBIDDEN
);
return false;
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code=$e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
/*
Returns Students Attendance Details given a Attendance Master Id
@param $response MIXED response variable contains error code or success data
@param $mst_id INT attendance master id
*/
function getStudentWiseAttendanceByMst(&$response,$mst_id)
{
try
{ $dbh = new MyDbCon;
$statement = $dbh->call('student_presence_from_master',array($mst_id));
// Get 1st ResultSet : Division & Batchno

10. $resultSet = $statement->fetchAll(PDO::FETCH_ASSOC);
$students['metadata']['division'] = intval($resultSet[0]['division']);
$students['metadata']['batchno'] = intval($resultSet[0]['batchno']);
// Get 2nd ResultSet : Students Presence
$statement->nextRowSet();
$resultSet = $statement->fetchAll(PDO::FETCH_ASSOC);
$students['data']=$resultSet;
$response = $students;
return true;
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code=$e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
/*
Returns Lecture Details given a Attendance Master Id
@param $response MIXED response variable contains error code or success data
@param $mst_id INT attendance master id
*/
function getLectureWiseAttendanceByMst(&$response,$mst_id)
{
try
{
$dbh = new MyDbCon;
$dbh->select("Lectures");
$dbh->select->columns(array('lec_id','lec_date'));
$dbh->select->where->equalTo('attd_mst_id',$mst_id);
$dbh->select->where->equalTo('Lectures.active', 1);
$dbh->join('Attendance','Lectures.lec_id = Attendance.lec_id',
array( 'presence' => new Expression("sum(presence)"),
'total' => new Expression("count(presence)"),
'percentage' => new
Expression("ROUND(sum(presence)/count(presence)*100,2)")
),'left');
$dbh->select->group('Lectures.lec_id');
$dbh->select->order('lec_date ASC');
$dbh->prepare();
/*
select Lectures.lec_id,lec_date,sum(presence) as presence,count(presence) as
total,ROUND(sum(presence)/count(presence)*100,2) as percentage from Lectures left join
Attendance
on Attendance.lec_id=Lectures.lec_id
where attd_mst_id = 9 and Lectures.active = 1
group by Lectures.lec_id

11. order by lec_date ASC
*/
if($dbh->execute())
{ $res=$dbh->fetchAssoc();
//var_dump($res);
$response['data'] = $res;
return true;
}
$response = array(
'code' => HTTP_Status::NOT_FOUND
);
return false;
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code = $e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err = "Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
/*
Returns Lecture Attendance Details given a Lecture Id
@param $response MIXED response variable contains error code or success data
@param $mst_id INT attendance master id
*/
function getStudentAttendanceByLec(&$response,$lec_id)
{ if(!ctype_digit($lec_id))
{ $response = array(
'code' => HTTP_Status::BAD_REQUEST,
'message' => 'Lec ID must be digits only'
);
return false;
}
/*
select Attendance.stud_id,stud_rollno,stud_enrolmentno,CONCAT(stud_name,'
',stud_father_name,' ',stud_surname) as stud_name,presence
from Attendance join Student_Master
on Student_Master.stud_id = Attendance.stud_id
where lec_id = 4
order by stud_rollno ASC
*/
try
{
$dbh = new MyDbCon;
$dbh->select("Attendance");
$dbh->select->columns(array('stud_id','presence'));
$dbh->select->where->equalTo('lec_id',$lec_id);

12. $dbh->join('Student_Master','Student_Master.stud_id = Attendance.stud_id',
array( 'stud_rollno','stud_enrolmentno',
'stud_name' => new
Expression("CONCAT(stud_name,' ',IFNULL(stud_father_name,''),' ',IFNULL(stud_surname,''))")
));
$dbh->select->order('stud_rollno ASC');
$dbh->prepare();
if($dbh->execute())
{ $response = $dbh->fetchAssoc();
return true;
}
else
{ $response = array(
'code' => HTTP_Status::NOT_FOUND,
'message' => 'No records Found'
);
return false;
}
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code = $e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err = "Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
/*
Returns Student Attendance Details given a Attendance_Master Id and Stud_id
@param $response MIXED response variable contains error code or success data
@param $mst_id INT attendance master id
@param $stud_id INT stud id
*/
function getLectureWiseAttendanceOfStudByMst(&$response,$mst_id,$stud_id)
{
/*
select Lectures.lec_id,lec_date,presence from Lectures
left join Attendance
on Attendance.lec_id=Lectures.lec_id and stud_id=65
where attd_mst_id=9 and Lectures.active = 1
group by Lectures.lec_id
order by lec_date ASC
*/
if(!ctype_digit($mst_id) || !ctype_digit($stud_id))
{ $response = array(
'code' => HTTP_Status::BAD_REQUEST,
'message' => 'ID must be digits only'
);

13. return false;
}
try
{
$dbh = new MyDbCon;
$dbh->select("Lectures");
$dbh->select->columns(array('lec_id','lec_date'));
$dbh->join('Attendance',new Expression("Lectures.lec_id = Attendance.lec_id and
stud_id = {$stud_id}"),array('presence'),'left');
$dbh->select->where->equalTo('attd_mst_id',$mst_id);
$dbh->select->where->equalTo('Lectures.active', 1);
$dbh->select->group('Lectures.lec_id');
$dbh->select->order('lec_date ASC');
$dbh->prepare();
//echo $dbh->select->getSqlString($dbh->getAdapter()->getPlatform());
$dbh->execute();
$response = $dbh->fetchAssoc();
return true;
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code = $e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err = "Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
?>
Student Attendance Info Fetcher Module:
<?php
/*
Returns Students Data from a particular master.
@param $response MIXED response variable contains error code or success data
@param $mst_id INT attendance master id
@param $faculty_id Bool true, if need to match for current logged in faculty for verification
@param $now Bool true, if need to get current active academic calendars only
*/
use ZendDbSqlSelect;
function getStudentsByMst(&$response,$mst_id,$faculty_id=true,$now=true)
{ if(!ctype_digit($mst_id))
{ $response = array(
'code' => HTTP_Status::BAD_REQUEST,
'message' => 'Master ID must be digits only'
);

14. return false;
}
$meta_data=array(
"batchno" => null,
"division" => null,
"inst_name" => null,
"prog_name" => null,
"dept_name" => null,
"semester" => null,
"subject" => null
);
try
{ $dbh=new MyDbCon;
$dbh->select("Attendance_Master");
$dbh->select->where->equalTo("attd_mst_id",$mst_id);
$dbh->prepare();
if($dbh->execute())
{ $tmp=$dbh->fetchAssoc()[0];
$meta_data['batchno']=$tmp['batchno'];
$meta_data['division']=$tmp['division'];
}
else
{ $response = array(
'code' => HTTP_Status::FORBIDDEN
);
return false;
}
$where_funcs=array(
'=' => 'equalTo',
'<' => 'lessThan',
'>' => 'greaterThan',
'<=' => 'lessThanOrEqualTo',
'>=' => 'greaterThanOrEqualTo',
'like' => 'like'
);
$where=array(
"attd_mst_id" => $mst_id,
"stud_status" => "C"
);
if($now)
{ try
{ $now=(new DateTime())->format("Y-m-d");
//throw new Exception("asd");
}catch(Exception $e)
{ $response = array(
'code' => HTTP_Status::INTERNAL_SERVER_ERROR
);
return false;
}
$where['end_date'] = "{$now}:>=";
$where['start_date'] = "{$now}:<=";
}

15. if($faculty_id && !Privilege_Master::is_super($_SESSION['privilege_id']))
{ $where['faculty_id'] = $_SESSION['faculty_id'];
}
$join_tables=array(
"Academic_Calendar",
"Teaches",
"Syllabus",
"Student_Master"
);
$join_on=array(
"Academic_Calendar" =>
"Academic_Calendar.ac_id=Attendance_Master.ac_id",
"Teaches" => "Attendance_Master.teaches_id=Teaches.teaches_id",
"Syllabus" => "Teaches.syllabus_id=Syllabus.syllabus_id",
"Student_Master" => "Student_Master.o_id=Syllabus.o_id AND
Student_Master.stud_sem=Academic_Calendar.semester AND
Student_Master.stud_div=Attendance_Master.division"
);
if(!empty($meta_data['batchno']))
$join_on["Student_Master"].=" AND
Student_Master.stud_batchno=Attendance_Master.batchno";
$join_columns=array(
"Academic_Calendar" => array("start_date","end_date"),
"Teaches" => array(),
"Syllabus" => array("sub_id"),
"Student_Master" =>
array("stud_id","stud_enrolmentno","stud_rollno","stud_name","stud_father_name","stud_surname
","stud_sem","stud_div","stud_batchno","o_id")
);
$meta_keys=array("stud_sem","stud_div","stud_batchno","o_id","sub_id","start_date","end
_date");
$dbh=new MyDbCon;
$dbh->select("Attendance_Master");
$dbh->select->columns(array());
// Join Tables
foreach($join_tables as $val)
{ $cols=Select::SQL_STAR;
if(isset($join_columns[$val]))
$cols=$join_columns[$val];
$dbh->join($val,$join_on[$val],$cols);
}
// Where Clause
foreach($where as $key=>$val)
{
$vals=explode(':',$val);
$wh=$where_funcs['='];
if(!empty($vals[1]) && isset($where_funcs[$vals[1]]))
$wh=$where_funcs[$vals[1]];
$dbh->select->where->$wh($key,$vals[0]);
}
$dbh->select->order("stud_rollno ASC");

16. $dbh->prepare();
if($dbh->execute())
{ $objs=$dbh->fetchAssoc();
$meta_data['semester']=$objs[0]['stud_sem'];
$meta_data['start_date']=$objs[0]['start_date'];
$meta_data['end_date']=$objs[0]['end_date'];
$names=Offers_Master::getNames($objs[0]['o_id']);
$meta_data['subject']=Sub_Master::getSubjectName($objs[0]['sub_id']);
if($names)
{ $meta_data['inst_name']=$names['inst_name'];
$meta_data['prog_name']=$names['prog_name'];
$meta_data['dept_name']=$names['dept_name'];
}
foreach($objs as $row)
{ foreach($meta_keys as $val)
unset($row[$val]);
if(!empty($row['stud_father_name']))
$row['stud_name'].=" ".$row['stud_father_name'];
if(!empty($row['stud_surname']))
$row['stud_name'].=" ".$row['stud_surname'];
unset($row['stud_father_name']);
unset($row['stud_surname']);
}
//var_dump($meta_data);
//var_dump($objs);
$response=array(
"metadata" => $meta_data,
"data" => $objs
);
return true;
}
else
{ $response = array(
'code' => HTTP_Status::FORBIDDEN
);
return false;
}
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code=$e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
?>

17. MasterAccess List:
<?php
/*
Returns Masters List from a given Faculty ID.
@param $response MIXED response variable contains error code or success data
@param $fac_id INT attendance master id
@param $now Bool true, if need to get current active academic calendars only
*/
use ZendDbSqlSelect;
function getMstByFaculty(&$response,$fac_id,$now=true)
{ if(!ctype_digit($fac_id) && !Privilege_Master::is_super($_SESSION['privilege_id']))
{ $response = array(
'code' => HTTP_Status::BAD_REQUEST,
'message' => 'Faculty ID must be digits only'
);
return false;
}
try
{
$where_funcs=array(
'=' => 'equalTo',
'<' => 'lessThan',
'>' => 'greaterThan',
'<=' => 'lessThanOrEqualTo',
'>=' => 'greaterThanOrEqualTo',
'like' => 'like'
);
if(!Privilege_Master::is_super($_SESSION['privilege_id']))
{ $where=array(
"Teaches.faculty_id" => $fac_id
);
}
try
{ $now=(new DateTime())->format("Y-m-d");
}catch(Exception $e)
{ $response = array(
'code' => HTTP_Status::INTERNAL_SERVER_ERROR
);
return false;
}
$where['end_date'] = "{$now}:>=";
$where['start_date'] = "{$now}:<=";
$join_tables=array(
"Academic_Calendar",
"Teaches",
"Syllabus",
"Offers_Master",
"Inst_Master",
"Prog_Master",
"Dept_Master",
"Sub_Master",

18. "Faculty_Master"
);
$join_on=array(
"Academic_Calendar" =>
"Academic_Calendar.ac_id=Attendance_Master.ac_id",
"Teaches" => "Attendance_Master.teaches_id=Teaches.teaches_id",
"Syllabus" => "Teaches.syllabus_id=Syllabus.syllabus_id",
"Offers_Master" => "Offers_Master.o_id=Syllabus.o_id",
"Inst_Master" => "Inst_Master.inst_id=Offers_Master.inst_id",
"Prog_Master" => "Prog_Master.prog_id=Offers_Master.prog_id",
"Dept_Master" => "Dept_Master.dept_id=Offers_Master.dept_id",
"Sub_Master" => "Sub_Master.sub_id=Syllabus.sub_id",
"Faculty_Master" => "Faculty_Master.faculty_id=Teaches.faculty_id"
);
$join_columns=array(
"Academic_Calendar" => array("start_date","end_date","semester"),
"Teaches" => array("type"),
"Syllabus" => array("sub_id"),
"Offers_Master" => array("o_id"),
"Inst_Master" => array("inst_name"),
"Prog_Master" => array("prog_name"),
"Dept_Master" => array("dept_name"),
"Sub_Master" => array("sub_name"),
"Faculty_Master" =>
array("faculty_name","faculty_father_name","faculty_surname")
);
$dbh=new MyDbCon;
$dbh->select("Attendance_Master");
$dbh->select->columns(array("attd_mst_id","batchno","division"));
// Join Tables
foreach($join_tables as $val)
{ $cols=Select::SQL_STAR;
if(isset($join_columns[$val]))
$cols=$join_columns[$val];
$dbh->join($val,$join_on[$val],$cols);
}
// Where Clause
foreach($where as $key=>$val)
{
$vals=explode(':',$val);
$wh=$where_funcs['='];
if(!empty($vals[1]) && isset($where_funcs[$vals[1]]))
$wh=$where_funcs[$vals[1]];
$dbh->select->where->$wh($key,$vals[0]);
}
$dbh->prepare();
if($dbh->execute())
{ $objs=$dbh->fetchAssoc();
foreach($objs as $row)
{ if(!empty($row['faculty_father_name']))
$row['faculty_name'].=" ".$row['faculty_father_name'];
if(!empty($row['faculty_surname']))

19. $row['faculty_name'].=" ".$row['faculty_surname'];
unset($row['faculty_father_name']);
unset($row['faculty_surname']);
}
$response = $objs;
return true;
}
else
{ $response = array(
'code' => HTTP_Status::NOT_FOUND
);
return false;
}
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code=$e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
?>
Update Attendance Info Module:
<?php
use ZendDbSqlSelect;
use ZendDbSqlExpression;
require_once "../getStudents/getStudents.lib.php";
function authMst(&$response,$mst_id,$faculty_id)
{ /*
select count(*) as cnt from Attendance_Master
join Teaches
on Attendance_Master.attd_mst_id = 9 and Attendance_Master.teaches_id =
Teaches.teaches_id and Teaches.faculty_id = 5
*/
if(Privilege_Master::is_super($_SESSION['privilege_id']))
{ return true;
}
else if(!ctype_digit($mst_id) || !ctype_digit($faculty_id))
{ $response = array(
'code' => HTTP_Status::BAD_REQUEST,
'message' => 'ID must be digits only'
);
return false;
}

20. try
{
$dbh = new MyDbCon;
$dbh->select("Attendance_Master");
$dbh->select->columns(array("cnt" => new Expression("count(*)")));
$dbh->join("Teaches",new Expression("Attendance_Master.attd_mst_id =
{$mst_id} and Attendance_Master.teaches_id = Teaches.teaches_id and Teaches.faculty_id =
{$faculty_id}"),array());
$dbh->prepare();
$dbh->execute();
$cnt = $dbh->fetchAssoc()[0]['cnt'];
if(intval($cnt)===1)
return true;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => HTTP_Status::FORBIDDEN_MSG
);
return false;
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code=$e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
function authStud(&$response,$mst_id,array $stud_id)
{
$faculty_id=true;
if(Privilege_Master::is_super($_SESSION['privilege_id']))
$faculty_id=false;
if(!getStudentsByMst($response,$mst_id,$faculty_id))
return false;
foreach($stud_id as $id)
{ $flag=false;
foreach($response['data'] as $stud)
{ if(strcmp($stud['stud_id'],$id)==0)
{ $flag=true;
break;
}
}
if(!$flag)
break;
}
if($flag)
{ $response = true;
return true;
}

21. $response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => HTTP_Status::FORBIDDEN_MSG
);
return false;
}
function authLec(&$response,$mst_id,array $lec_id)
{ if(!ctype_digit($mst_id))
{ $response = array(
'code' => HTTP_Status::BAD_REQUEST,
'message' => 'ID must be digits only'
);
return false;
}
try
{
$dbh = new MyDbCon;
$dbh->select("Lectures");
$dbh->select->columns(array("lec_id"));
$dbh->select->where->equalTo("attd_mst_id",$mst_id);
$dbh->prepare();
if($dbh->execute())
{ $res = $dbh->fetchAssoc();
$ids = array();
foreach($res as $lec)
$ids[]=$lec['lec_id'];
$dif = array_diff($lec_id,$ids);
if(empty($dif))
return true;
}
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => HTTP_Status::FORBIDDEN_MSG
);
return false;
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code=$e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
function updateByStudId(&$response,$stud_id,array $attd)
{
$objs = array();
foreach($attd as $k=>$v)
{ $attd[$k]['stud_id'] = $stud_id;

22. $attd[$k]['presence'] = $attd[$k]['p'] == 'P' ? 1 : 0;
unset($attd[$k]['p']);
$objs[] = new Attendance($attd[$k]);
}
if(updateAttd($response,$objs))
return true;
return false;
}
function updateByLecId(&$response,$lec_id,array $attd)
{ $objs = array();
foreach($attd as $k=>$v)
{ $attd[$k]['lec_id'] = $lec_id;
$attd[$k]['presence'] = $attd[$k]['p'] == 'P' ? 1 : 0;
unset($attd[$k]['p']);
$objs[] = new Attendance($attd[$k]);
}
if(updateAttd($response,$objs))
return true;
return false;
}
function updateAttd(&$response,array $objs)
{
/*
insert into Attendance(lec_id,stud_id,presence) VALUES(1,3,0),(1,6,1),(1,2,1)
on duplicate key update presence = VALUES(presence)
*/
try
{ $dbh = new MyDbCon;
$dbh->multiUpdate($objs,array("presence"));
$dbh->execute();
return true;
}catch(Exception $e)
{ $message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e-
>getMessage();
$code=$e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
function deleteLecture(&$response, $lec_id)
{
try
{
$arr = array(
'active' => 0
);
$obj = new Lectures($arr);
$dbh = new MyDbCon;

23. $dbh->updateThese($obj, array("lec_id" => $lec_id), array("active", "last_updated_by"));
$dbh->prepare();
$dbh->execute();
return true;
} catch(Exception $e)
{
$message = $e->getPrevious() ? $e->getPrevious()->getMessage() : $e->getMessage();
$code= $e->getPrevious() ? $e->getPrevious()->getCode() : $e->getCode();
$err="Error Code: ".$code." <br/>Detailed Info: ".$message;
$response = array(
'code' => HTTP_Status::FORBIDDEN,
'message' => $err
);
return false;
}
}
?>