clarification

apps/other/traccar.md

@@ -16,7 +16,7 @@ docker run --rm --entrypoint cat debian-traccar-nginx:latest /opt/traccar/conf/t
 ```
 
 ## Configuration parameters for MySQL
-Replace [DATABASE], [USER], [PASSWORD] with appropriate values from `docker-compose.yml` replace `[HOST]` with IPv4 address from `db_name` section in `docker network inspect`:
+In `traccar.xml` file update the following section:
 
 ```xml
 <entry key='database.driver'>com.mysql.cj.jdbc.Driver</entry>
@@ -24,6 +24,9 @@ Replace [DATABASE], [USER], [PASSWORD] with appropriate values from `docker-comp
 <entry key='database.user'>[USER]</entry>
 <entry key='database.password'>[PASSWORD]</entry>
 ```
+- replace [DATABASE], [USER], [PASSWORD] with appropriate values from `docker-compose.yml`
+- replace `[HOST]` with IPv4 address from `db_name` section in `docker network inspect`
+
 
 ## docker-compose.yml
 
@@ -132,27 +135,36 @@ pip install -r requirements.txt
 python location_history_json_converter.py Records.json  output.csv -f csv
 ```
 
-csv output will generate Comma-separated text file with a timestamp field and a location field
-we'll add a deviceid , protocol and valid fileds to it
+The csv file generated by the script above will contains 3 columns:
+- `time`
+- `latitute`
+- `longitude`
 
+We'll add more columns:
+- `deviceid`
+- `protocol`
+- `valid`
+
+using the following command:
 ```sh
 sed 's/^/osmand,1,/; s/$/,1/' export.csv > curated.csv
 ```
 
-delete the "1" from the first line an replace osmand with protocol in the first line, so now the file looks like
+The csv file should now contain 6 columns:
+- `@osmand`
+- `@deviceid`
+- `@time`
+- `@latitude`
+- `@longitude`
+- `@valid`
+
+These represent `tc_positions` table fields in traccar postgres db, so now the file should look like this:
 
 ```csv
-protocol,Time,Latitude,Longitude
-osmand,1,2012-08-25 21:26:20,37.95954620,23.72793730,1
+protocol, 1, Time, Latitude, Longitude, 1
+osmand, 1, 2012-08-25 21:26:20, 37.95954620, 23.72793730, 1
 ```
 
-5 columns
-osmand
-1
-time
-lat
-lon
-
 We are going to parse those values to as sql `LOAD DATA LOCAL INFILE` statement to the appropriate tc_position table fields
 
 - copy the csv to the container