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*: Optimize the logic of creating sqlrunner. *: add user management r…
…elated operations.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| /* | ||
| Copyright 2021 RadonDB. | ||
| Licensed under the Apache License, Version 2.0 (the "License"); | ||
| you may not use this file except in compliance with the License. | ||
| You may obtain a copy of the License at | ||
| http://www.apache.org/licenses/LICENSE-2.0 | ||
| Unless required by applicable law or agreed to in writing, software | ||
| distributed under the License is distributed on an "AS IS" BASIS, | ||
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| See the License for the specific language governing permissions and | ||
| limitations under the License. | ||
| */ | ||
|
|
||
| package internal | ||
|
|
||
| import "strings" | ||
|
|
||
| // Query contains a escaped query string with variables marked with a question mark (?) and a slice | ||
| // of positional arguments. | ||
| type Query struct { | ||
| escapedQuery string | ||
| args []interface{} | ||
| } | ||
|
|
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| // String representation of the query. | ||
| func (q *Query) String() string { | ||
| return q.escapedQuery | ||
| } | ||
|
|
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| // Args representation of the query. | ||
| func (q *Query) Args() []interface{} { | ||
| return q.args | ||
| } | ||
|
|
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| // NewQuery returns a new Query object. | ||
| func NewQuery(q string, args ...interface{}) Query { | ||
| if q == "" { | ||
| panic("unexpected empty query") | ||
| } | ||
|
|
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| if !strings.HasSuffix(q, ";") { | ||
| q += ";" | ||
| } | ||
|
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| return Query{ | ||
| escapedQuery: q, | ||
| args: args, | ||
| } | ||
| } | ||
|
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| // ConcatenateQueries concatenates the provided queries into a single query. | ||
| func ConcatenateQueries(queries ...Query) Query { | ||
| args := []interface{}{} | ||
| query := "" | ||
|
|
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| for _, pq := range queries { | ||
| if query != "" { | ||
| if !strings.HasSuffix(query, "\n") { | ||
| query += "\n" | ||
| } | ||
| } | ||
|
|
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| query += pq.escapedQuery | ||
| args = append(args, pq.args...) | ||
| } | ||
|
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| return NewQuery(query, args...) | ||
| } | ||
|
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| // BuildAtomicQuery concatenates the provided queries into a single query wrapped in a BEGIN COMMIT block. | ||
| func BuildAtomicQuery(queries ...Query) Query { | ||
| queries = append([]Query{NewQuery("BEGIN")}, queries...) | ||
| queries = append(queries, NewQuery("COMMIT")) | ||
|
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| return ConcatenateQueries(queries...) | ||
| } |
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