worldcup_database/insert_data.sh at main · thmgarnier/worldcup_database · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
#! /bin/bash

if [[ $1 == "test" ]]
then
  PSQL="psql --username=postgres --dbname=worldcuptest -t --no-align -c"
else
  PSQL="psql --username=freecodecamp --dbname=worldcup -t --no-align -c"
fi

# Do not change code above this line. Use the PSQL variable above to query your database.

echo "$($PSQL "TRUNCATE TABLE games, teams")"

cat games.csv | while IFS="," read YEAR ROUND WINNER OPPONENT WINNER_GOALS OPPONENT_GOALS
do
  # add each unique team to the teams table.

  if [[ $WINNER != "winner" ]]
  then
      TEAM_ID=$($PSQL "SELECT team_id FROM teams WHERE name='$WINNER'")
      if [[ -z $TEAM_ID ]]
      then
        # insert team name
        INSERT_TEAM_NAME=$($PSQL "INSERT INTO teams(name) VALUES('$WINNER')")

        if [[ $INSERT_TEAM_NAME == "INSERT 0 1" ]]
        then
          echo Inserted into teams, $WINNER
        fi
        # get new major_id
        TEAM_ID=$($PSQL "SELECT team_id FROM teams WHERE name='$WINNER'")
      fi
  fi

  if [[ $OPPONENT != "opponent" ]]
  then
      TEAM_ID=$($PSQL "SELECT team_id FROM teams WHERE name='$OPPONENT'")
      if [[ -z $TEAM_ID ]]
      then
        # insert team name
        INSERT_TEAM_NAME=$($PSQL "INSERT INTO teams(name) VALUES('$OPPONENT')")
        if [[ $INSERT_TEAM_NAME == "INSERT 0 1" ]]
        then
          echo Inserted into teams, $OPPONENT
        fi
        # get new team_id
        TEAM_ID=$($PSQL "SELECT team_id FROM teams WHERE name='$OPPONENT'")
      fi
  fi

  # insert data into games table
  WINNER_ID=$($PSQL "SELECT team_id FROM teams WHERE name='$WINNER'")
  OPPONENT_ID=$($PSQL "SELECT team_id FROM teams WHERE name='$OPPONENT'")

  if [[ $YEAR != "year" ]]
  then INSERT_GAMES=$($PSQL "INSERT INTO games(year, round, winner_id, opponent_id, winner_goals, opponent_goals) VALUES($YEAR, '$ROUND', $WINNER_ID, $OPPONENT_ID, $WINNER_GOALS, $OPPONENT_GOALS)")
  fi

done