#90: add connection params to psql init

[liortamari]

This change is 

[coveralls]

Coverage increased (+0.2%) to 51.696% when pulling d70cb88 on feature/liort_db_params into cb0edca on dev.

[shay-berman]

Review status: 0 of 3 files reviewed at latest revision, 4 unresolved discussions.

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database/init.go, line 28 at r1 (raw file):

    KeySqlitePath = "UBIQUITY_DB_SQLITE_PATH"
    KeyPsqlUser = "UBIQUITY_DB_USER"
    KeyPsqlPassword = "UBIQUITY_DB_PASSWORD"

next time, please try to commit it on different ticket, because its different subject related to PG security.

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database/init.go, line 45 at r1 (raw file):

    psqlDbName := os.Getenv(KeyPsqlDbName)
    if psqlDbName == "" {
        psqlDbName = "postgres"

Add them as const like PSGLDbNameDefault="postgres" also for the user

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database/init.go, line 56 at r1 (raw file):

    psqlPort := os.Getenv(KeyPsqlPort)
    if psqlPort != "" {
        str += " port=" + psqlPort

is there any validation check on the port to validate its a number? or we just fail with panic?

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database/init.go, line 67 at r1 (raw file):

func InitPostgres(hostname string) func() {
    defer logs.GetLogger().Trace(logs.DEBUG)()
    return initConnectionFactory(&postgresFactory{psql: GetPsqlConnectionParams(hostname) + " " + GetPsqlSslParams()})

is there any special reason why you do it as long strings with key=val rather then a map?

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