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Read database in python directly now

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t510599 2018-12-22 00:37:45 +08:00
parent ca1dbee299
commit 94b1d8ba55
4 changed files with 94 additions and 53 deletions
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20
README.md
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@ -1,2 +1,22 @@
# 210-seat
## Usage
`seats.py [mode] [parameters]`
```
generate - generate a random seat
switch <no1> <no2> - switch seats of two students
run - apply requirements
export - export requirements to requirements.txt
print - print the current seat
debug - dry run
```
## Dependencies
- cli
- pymongo
- web
```bash
cd 210-seats/web
npm install
```

97
cli/seat.py
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# -*- coding: utf-8 -*-
from algo import generateSeats, printArr, shiftUp, shiftDown, shiftLeft, shiftRight, shiftLeftDown, shiftLeftUp, shiftRightDown, shiftRightUp
from pymongo import MongoClient
from random import choice
import sys
import json
def load():
f = open('seats.txt','r',encoding="utf-8")
with open('seats.txt','r',encoding="utf-8") as f:
seats = json.load(f)
f.close()
return seats
def parse(seats,requirements):
def save(seats):
with open('seats.txt','w',encoding="utf-8") as n:
n.write(str(seats))
def query():
client = MongoClient('127.0.0.1', 27017)
db = client['210-seats']
collection = db['users']
data = collection.find().sort("no", )
for user in data:
yield user
def apply_requirements(seats, requirements):
funcs = {"f": shiftUp,"b": shiftDown, "l": shiftLeft, "r": shiftRight, "fr": shiftRightUp, "br": shiftRightDown, "fl": shiftLeftUp, "bl": shiftLeftDown} # f: forward, b: backward, l:left, r: right
name = {"f": "向前","b": "向後", "l": "向左", "r": "向右", "fr": "向右前", "br": "向右後", "fl": "向左前", "bl": "向左後"}
name = {"f": "Forward","b": "Backward", "l": "Left", "r": "Right", "fr": "Right Forward", "br": "Right Backward", "fl": "Left Forward", "bl": "Left Backward"}
order = sorted([int(n) for n in requirements.keys()])
luckier = choice(order)
print("幸運兒: " + str(luckier) + "\n")
print("Luckier: " + str(luckier) + "\n")
order = order[order.index(luckier):] + order[:order.index(luckier)]
for req in order:
no,direction,steps = requirements[str(req)]
no = no
steps = steps
row,col = find(seats,no)
no, direction, steps = requirements[str(req)]
row,col = find(seats, no)
if col != None and row != None:
if direction in funcs.keys():
funcs[direction](row,col,steps,seats)
funcs[direction](row, col, steps, seats)
print(no, name[direction], steps)
printArr(seats)
print()
return seats
def find(seats,no):
def find(seats, no, raw=False):
if raw:
modifier = 0
else:
modifier = 1 # start from 0 -> start from 1
for y in range(len(seats)):
if no in seats[y]:
col = seats[y].index(no)
row = y
return (row+1,col+1) # start from 0 -> start from 1
return (row + modifier, col + modifier)
return (None,None)
help_msg = '''Please provide mode!
generate - generate a random seat
switch <no1> <no2> - switch seats of two students
run - apply requirements
export - export requirements to requirements.txt
print - print the current seat
debug - dry run'''
@ -53,30 +72,58 @@ if __name__ == "__main__":
if mode == "generate":
seats = generateSeats()
printArr(seats)
n = open('seats.txt','w',encoding="utf-8")
n.write(str(seats))
n.close()
save(seats)
print("Done!")
elif mode == "run" or mode == "debug":
seats = load()
print("Original:")
printArr(seats)
#load requirements
# load requirements
requirements = dict()
r = open('requirements.txt','r',encoding="utf-8")
for line in r.readlines():
no,direction,steps = line.strip().split(" ")
requirements[no] = (int(no),direction,int(steps))
parse(seats,requirements)
with open('requirements.txt', 'w', encoding="utf-8") as req_f:
for user in query():
if user['steps'].strip() != "":
requirements[str(user['no'])] = (user['no'], user['direction'], int(user['steps']))
req_f.write("{0} {1} {2}\n".format(user['no'], user['direction'], int(user['steps'])))
apply_requirements(seats, requirements)
print("Result:")
printArr(seats)
# save
if mode == "run":
#save
n = open('seats.txt','w',encoding="utf-8")
with open('seats.txt','w',encoding="utf-8") as n:
n.write(str(seats))
n.close()
print("Done!")
elif mode == "show":
elif mode == "switch":
seats = load()
one = int(sys.argv[2])
two = int(sys.argv[3])
pos_one = find(seats, one, True)
pos_two = find(seats, two, True)
seats[pos_one[0]][pos_one[1]], seats[pos_two[0]][pos_two[1]] = seats[pos_two[0]][pos_two[1]], seats[pos_one[0]][pos_one[1]]
printArr(seats)
save(seats)
# logging switch
log = open('switch.txt','a',encoding='utf-8')
log.write("{} {}\n".format(str(one), str(two)))
log.close()
elif mode == "export":
requirements = dict()
with open('requirements.txt', 'w', encoding="utf-8") as req_f:
for user in query():
if user['steps'].strip() != "":
requirements[str(user['no'])] = (user['no'], user['direction'], int(user['steps']))
req_f.write("{0} {1} {2}\n".format(user['no'], user['direction'], int(user['steps'])))
print(requirements)
elif mode == "print":
printArr(load())
else:
print(help_msg)

10
web/empty.js
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var users = require('./models/users');
users.find({}).sort({ no: 1 }).exec(function(err,data){
for (set of data) {
if (set.direction == "") {
console.log(set.no)
}
}
});

16
web/export.js
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var fs = require('fs');
var path = require('path');
var users = require('./models/users');
fs.writeFileSync(path.resolve(__dirname,"../cli/requirements.txt"),""); // empty the file
users.find({}).sort({ no: 1 }).exec(function(err,data){
for (set of data) {
console.log(set.no)
if (set.direction != "" && set.steps != "") {
console.log('yes')
fs.appendFileSync(path.resolve(__dirname,"../cli/requirements.txt"),`${set.no} ${set.direction} ${set.steps}\n`);
}
}
});