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@@ -42,7 +42,7 @@ | |
| "postgres" | ||
| ], | ||
| "dependencies": { | ||
| "cordis": "^3.9.1", | ||
| "cordis": "^3.9.2", | ||
| "cosmokit": "^1.5.2" | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,170 @@ | ||
| import { Builder, escapeId, isBracketed } from '@minatojs/sql-utils' | ||
| import { Dict, Time } from 'cosmokit' | ||
| import { Field, isEvalExpr, Model, randomId, Selection } from 'minato' | ||
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| export const DEFAULT_DATE = new Date('1970-01-01') | ||
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| export interface Compat { | ||
| maria?: boolean | ||
| maria105?: boolean | ||
| mysql57?: boolean | ||
| } | ||
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| export class MySQLBuilder extends Builder { | ||
| // eslint-disable-next-line no-control-regex | ||
| protected escapeRegExp = /[\0\b\t\n\r\x1a'"\\]/g | ||
| protected escapeMap = { | ||
| '\0': '\\0', | ||
| '\b': '\\b', | ||
| '\t': '\\t', | ||
| '\n': '\\n', | ||
| '\r': '\\r', | ||
| '\x1a': '\\Z', | ||
| '\"': '\\\"', | ||
| '\'': '\\\'', | ||
| '\\': '\\\\', | ||
| } | ||
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| prequeries: string[] = [] | ||
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| constructor(tables?: Dict<Model>, private compat: Compat = {}) { | ||
| super(tables) | ||
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| this.evalOperators.$sum = (expr) => this.createAggr(expr, value => `ifnull(sum(${value}), 0)`, undefined, value => `ifnull(minato_cfunc_sum(${value}), 0)`) | ||
| this.evalOperators.$avg = (expr) => this.createAggr(expr, value => `avg(${value})`, undefined, value => `minato_cfunc_avg(${value})`) | ||
| this.evalOperators.$min = (expr) => this.createAggr(expr, value => `min(${value})`, undefined, value => `minato_cfunc_min(${value})`) | ||
| this.evalOperators.$max = (expr) => this.createAggr(expr, value => `max(${value})`, undefined, value => `minato_cfunc_max(${value})`) | ||
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| this.define<string[], string>({ | ||
| types: ['list'], | ||
| dump: value => value.join(','), | ||
| load: value => value ? value.split(',') : [], | ||
| }) | ||
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| this.define<object, string>({ | ||
| types: ['json'], | ||
| dump: value => JSON.stringify(value), | ||
| load: value => typeof value === 'string' ? JSON.parse(value) : value, | ||
| }) | ||
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| this.define<Date, any>({ | ||
| types: ['time'], | ||
| dump: value => value, | ||
| load: (value) => { | ||
| if (!value || typeof value === 'object') return value | ||
| const time = new Date(DEFAULT_DATE) | ||
| const [h, m, s] = value.split(':') | ||
| time.setHours(parseInt(h)) | ||
| time.setMinutes(parseInt(m)) | ||
| time.setSeconds(parseInt(s)) | ||
| return time | ||
| }, | ||
| }) | ||
| } | ||
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| escape(value: any, field?: Field) { | ||
| if (value instanceof Date) { | ||
| value = Time.template('yyyy-MM-dd hh:mm:ss', value) | ||
| } else if (value instanceof RegExp) { | ||
| value = value.source | ||
| } else if (!field && !!value && typeof value === 'object') { | ||
| return `json_extract(${this.quote(JSON.stringify(value))}, '$')` | ||
| } | ||
| return super.escape(value, field) | ||
| } | ||
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| protected jsonQuote(value: string, pure: boolean = false) { | ||
| if (pure) return this.compat.maria ? `json_extract(json_object('v', ${value}), '$.v')` : `cast(${value} as json)` | ||
| const res = this.state.sqlType === 'raw' ? (this.compat.maria ? `json_extract(json_object('v', ${value}), '$.v')` : `cast(${value} as json)`) : value | ||
| this.state.sqlType = 'json' | ||
| return res | ||
| } | ||
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| protected createAggr(expr: any, aggr: (value: string) => string, nonaggr?: (value: string) => string, compat?: (value: string) => string) { | ||
| if (!this.state.group && compat && (this.compat.mysql57 || this.compat.maria)) { | ||
| return compat(this.parseEval(expr, false)) | ||
| } else { | ||
| return super.createAggr(expr, aggr, nonaggr) | ||
| } | ||
| } | ||
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| protected groupArray(value: string) { | ||
| if (!this.compat.maria) return super.groupArray(value) | ||
| const res = this.state.sqlType === 'json' ? `concat('[', group_concat(${value}), ']')` | ||
| : `concat('[', group_concat(json_extract(json_object('v', ${value}), '$.v')), ']')` | ||
| this.state.sqlType = 'json' | ||
| return `ifnull(${res}, json_array())` | ||
| } | ||
|
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| protected parseSelection(sel: Selection) { | ||
| if (!this.compat.maria && !this.compat.mysql57) return super.parseSelection(sel) | ||
| const { args: [expr], ref, table, tables } = sel | ||
| const restore = this.saveState({ wrappedSubquery: true, tables }) | ||
| const inner = this.get(table as Selection, true, true) as string | ||
| const output = this.parseEval(expr, false) | ||
| const refFields = this.state.refFields | ||
| restore() | ||
| let query: string | ||
| if (!(sel.args[0] as any).$) { | ||
| query = `(SELECT ${output} AS value FROM ${inner} ${isBracketed(inner) ? ref : ''})` | ||
| } else { | ||
| query = `(ifnull((SELECT ${this.groupArray(output)} AS value FROM ${inner} ${isBracketed(inner) ? ref : ''}), json_array()))` | ||
| } | ||
| if (Object.keys(refFields ?? {}).length) { | ||
| const funcname = `minato_tfunc_${randomId()}` | ||
| const decls = Object.values(refFields ?? {}).map(x => `${x} JSON`).join(',') | ||
| const args = Object.keys(refFields ?? {}).map(x => this.state.refFields?.[x] ?? x).map(x => this.jsonQuote(x, true)).join(',') | ||
| query = this.state.sqlType === 'json' ? `ifnull(${query}, json_array())` : this.jsonQuote(query) | ||
| this.prequeries.push(`DROP FUNCTION IF EXISTS ${funcname}`) | ||
| this.prequeries.push(`CREATE FUNCTION ${funcname} (${decls}) RETURNS JSON DETERMINISTIC RETURN ${query}`) | ||
| this.state.sqlType = 'json' | ||
| return `${funcname}(${args})` | ||
| } else return query | ||
| } | ||
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| toUpdateExpr(item: any, key: string, field?: Field, upsert?: boolean) { | ||
| const escaped = escapeId(key) | ||
|
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| // update directly | ||
| if (key in item) { | ||
| if (!isEvalExpr(item[key]) && upsert) { | ||
| return `VALUES(${escaped})` | ||
| } else if (isEvalExpr(item[key])) { | ||
| return this.parseEval(item[key]) | ||
| } else { | ||
| return this.escape(item[key], field) | ||
| } | ||
| } | ||
|
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| // prepare nested layout | ||
| const jsonInit = {} | ||
| for (const prop in item) { | ||
| if (!prop.startsWith(key + '.')) continue | ||
| const rest = prop.slice(key.length + 1).split('.') | ||
| if (rest.length === 1) continue | ||
| rest.reduce((obj, k) => obj[k] ??= {}, jsonInit) | ||
| } | ||
|
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| // update with json_set | ||
| const valueInit = `ifnull(${escaped}, '{}')` | ||
| let value = valueInit | ||
|
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| // json_set cannot create deeply nested property when non-exist | ||
| // therefore we merge a layout to it | ||
| if (Object.keys(jsonInit).length !== 0) { | ||
| value = `json_merge(${value}, ${this.quote(JSON.stringify(jsonInit))})` | ||
| } | ||
|
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| for (const prop in item) { | ||
| if (!prop.startsWith(key + '.')) continue | ||
| const rest = prop.slice(key.length + 1).split('.') | ||
| value = `json_set(${value}, '$${rest.map(key => `."${key}"`).join('')}', ${this.parseEval(item[prop])})` | ||
| } | ||
|
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| if (value === valueInit) { | ||
| return escaped | ||
| } else { | ||
| return value | ||
| } | ||
| } | ||
| } |
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