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Improvements to ERS SQL filters

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This commit is contained in:
arberkatellari
2024-11-27 18:25:34 +02:00
committed by Dan Christian Bogos
parent 041b14fa03
commit 6c752ac10f
5 changed files with 251 additions and 206 deletions
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156
utils/dbutils.go Normal file
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@@ -0,0 +1,156 @@
/*
Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
Copyright (C) ITsysCOM GmbH
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>
*/
package utils
import "fmt"
// Creates mysql conditions used in WHERE statement out of filters
func FilterToSQLQuery(ruleType, beforeSep, afterSep string, values []string, not bool) (conditions []string) {
// here are for the filters that their values are empty: *exists, *notexists, *empty, *notempty..
if len(values) == 0 {
switch ruleType {
case MetaExists, MetaNotExists:
if not {
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s IS NOT NULL", afterSep))
return
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') IS NOT NULL", beforeSep, afterSep))
return
}
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s IS NULL", afterSep))
return
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') IS NULL", beforeSep, afterSep))
case MetaEmpty, MetaNotEmpty:
if not {
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s != ''", afterSep))
return
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') != ''", beforeSep, afterSep))
return
}
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s == ''", afterSep))
return
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') == ''", beforeSep, afterSep))
}
return
}
// here are for the filters that can have more than one value: *string, *prefix, *suffix ..
for _, value := range values {
switch value { // in case we have boolean values, it should be queried over 1 or 0
case "true":
value = "1"
case "false":
value = "0"
}
var singleCond string
switch ruleType {
case MetaString, MetaNotString, MetaEqual, MetaNotEqual:
if not {
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s != '%s'", afterSep, value))
continue
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') != '%s'",
beforeSep, afterSep, value))
continue
}
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s = '%s'", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') = '%s'", beforeSep, afterSep, value)
}
case MetaLessThan, MetaLessOrEqual, MetaGreaterThan, MetaGreaterOrEqual:
if ruleType == MetaGreaterOrEqual {
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s >= %s", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') >= %s", beforeSep, afterSep, value)
}
} else if ruleType == MetaGreaterThan {
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s > %s", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') > %s", beforeSep, afterSep, value)
}
} else if ruleType == MetaLessOrEqual {
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s <= %s", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') <= %s", beforeSep, afterSep, value)
}
} else if ruleType == MetaLessThan {
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s < %s", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') < %s", beforeSep, afterSep, value)
}
}
case MetaPrefix, MetaNotPrefix:
if not {
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s NOT LIKE '%s%%'", afterSep, value))
continue
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') NOT LIKE '%s%%'", beforeSep, afterSep, value))
continue
}
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s LIKE '%s%%'", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') LIKE '%s%%'", beforeSep, afterSep, value)
}
case MetaSuffix, MetaNotSuffix:
if not {
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s NOT LIKE '%%%s'", afterSep, value))
continue
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') NOT LIKE '%%%s'", beforeSep, afterSep, value))
continue
}
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s LIKE '%%%s'", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') LIKE '%%%s'", beforeSep, afterSep, value)
}
case MetaRegex, MetaNotRegex:
if not {
if beforeSep == EmptyString {
conditions = append(conditions, fmt.Sprintf("%s NOT REGEXP '%s'", afterSep, value))
continue
}
conditions = append(conditions, fmt.Sprintf("JSON_VALUE(%s, '$.%s') NOT REGEXP '%s'", beforeSep, afterSep, value))
continue
}
if beforeSep == EmptyString {
singleCond = fmt.Sprintf("%s REGEXP '%s'", afterSep, value)
} else {
singleCond = fmt.Sprintf("JSON_VALUE(%s, '$.%s') REGEXP '%s'", beforeSep, afterSep, value)
}
}
conditions = append(conditions, singleCond)
}
return
}