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Moving some stuff around inside ExternalRequests to make it easier to access parts of the full context.

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This commit is contained in:
mike12345567 2024-06-21 16:58:27 +01:00
parent a850ce6996
commit e5c40c7ecd
1 changed files with 138 additions and 100 deletions
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238
packages/server/src/api/controllers/row/ExternalRequest.ts
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@ -72,92 +72,6 @@ export type ExternalRequestReturnType<T extends Operation> =
? number
: { row: Row; table: Table }
function buildFilters(
id: string | undefined | string[],
filters: SearchFilters,
table: Table
) {
const primary = table.primary
// if passed in array need to copy for shifting etc
let idCopy: undefined | string | any[] = cloneDeep(id)
if (filters) {
// need to map over the filters and make sure the _id field isn't present
let prefix = 1
for (let operator of Object.values(filters)) {
for (let field of Object.keys(operator || {})) {
if (dbCore.removeKeyNumbering(field) === "_id") {
if (primary) {
const parts = breakRowIdField(operator[field])
for (let field of primary) {
operator[`${prefix}:${field}`] = parts.shift()
}
prefix++
}
// make sure this field doesn't exist on any filter
delete operator[field]
}
}
}
}
// there is no id, just use the user provided filters
if (!idCopy || !table) {
return filters
}
// if used as URL parameter it will have been joined
if (!Array.isArray(idCopy)) {
idCopy = breakRowIdField(idCopy)
}
const equal: any = {}
if (primary && idCopy) {
for (let field of primary) {
// work through the ID and get the parts
equal[field] = idCopy.shift()
}
}
return {
equal,
}
}
async function removeManyToManyRelationships(
rowId: string,
table: Table,
colName: string
) {
const tableId = table._id!
const filters = buildFilters(rowId, {}, table)
// safety check, if there are no filters on deletion bad things happen
if (Object.keys(filters).length !== 0) {
return getDatasourceAndQuery({
endpoint: getEndpoint(tableId, Operation.DELETE),
body: { [colName]: null },
filters,
meta: {
table,
},
})
} else {
return []
}
}
async function removeOneToManyRelationships(rowId: string, table: Table) {
const tableId = table._id!
const filters = buildFilters(rowId, {}, table)
// safety check, if there are no filters on deletion bad things happen
if (Object.keys(filters).length !== 0) {
return getDatasourceAndQuery({
endpoint: getEndpoint(tableId, Operation.UPDATE),
filters,
meta: {
table,
},
})
} else {
return []
}
}
/**
* This function checks the incoming parameters to make sure all the inputs are
* valid based on on the table schema. The main thing this is looking for is when a
@ -240,6 +154,7 @@ export class ExternalRequest<T extends Operation> {
private readonly tableId: string
private datasource?: Datasource
private tables: { [key: string]: Table } = {}
private tableList: Table[]
constructor(operation: T, tableId: string, datasource?: Datasource) {
this.operation = operation
@ -248,6 +163,117 @@ export class ExternalRequest<T extends Operation> {
if (datasource && datasource.entities) {
this.tables = datasource.entities
}
this.tableList = Object.values(this.tables)
}
private prepareFilters(
id: string | undefined | string[],
filters: SearchFilters,
table: Table
) {
const tables = this.tableList
// replace any relationship columns initially, table names and relationship column names are acceptable
const relationshipColumns = sdk.rows.filters.getRelationshipColumns(table)
filters = sdk.rows.filters.updateFilterKeys(
filters,
relationshipColumns
.map(({ name, definition }) => {
const { tableName } = breakExternalTableId(definition.tableId)
return {
original: name,
updated: tableName!,
}
})
// don't update table names - include this for context incase a column would be replaced
.concat(
tables.map(table => {
const tableName = table.originalName || table.name
return {
original: tableName,
updated: tableName,
}
})
)
)
const primary = table.primary
// if passed in array need to copy for shifting etc
let idCopy: undefined | string | any[] = cloneDeep(id)
if (filters) {
// need to map over the filters and make sure the _id field isn't present
let prefix = 1
for (let operator of Object.values(filters)) {
for (let field of Object.keys(operator || {})) {
if (dbCore.removeKeyNumbering(field) === "_id") {
if (primary) {
const parts = breakRowIdField(operator[field])
for (let field of primary) {
operator[`${prefix}:${field}`] = parts.shift()
}
prefix++
}
// make sure this field doesn't exist on any filter
delete operator[field]
}
}
}
}
// there is no id, just use the user provided filters
if (!idCopy || !table) {
return filters
}
// if used as URL parameter it will have been joined
if (!Array.isArray(idCopy)) {
idCopy = breakRowIdField(idCopy)
}
const equal: any = {}
if (primary && idCopy) {
for (let field of primary) {
// work through the ID and get the parts
equal[field] = idCopy.shift()
}
}
return {
equal,
}
}
private async removeManyToManyRelationships(
rowId: string,
table: Table,
colName: string
) {
const tableId = table._id!
const filters = this.prepareFilters(rowId, {}, table)
// safety check, if there are no filters on deletion bad things happen
if (Object.keys(filters).length !== 0) {
return getDatasourceAndQuery({
endpoint: getEndpoint(tableId, Operation.DELETE),
body: { [colName]: null },
filters,
meta: {
table,
},
})
} else {
return []
}
}
private async removeOneToManyRelationships(rowId: string, table: Table) {
const tableId = table._id!
const filters = this.prepareFilters(rowId, {}, table)
// safety check, if there are no filters on deletion bad things happen
if (Object.keys(filters).length !== 0) {
return getDatasourceAndQuery({
endpoint: getEndpoint(tableId, Operation.UPDATE),
filters,
meta: {
table,
},
})
} else {
return []
}
}
getTable(tableId: string | undefined): Table | undefined {
@ -260,10 +286,22 @@ export class ExternalRequest<T extends Operation> {
}
}
// seeds the object with table and datasource information
async retrieveMetadata(datasourceId: string) {
if (!this.datasource) {
this.datasource = await sdk.datasources.get(datasourceId)
if (!this.datasource || !this.datasource.entities) {
throw "No tables found, fetch tables before query."
}
this.tables = this.datasource.entities
this.tableList = Object.values(this.tables)
}
}
async getRow(table: Table, rowId: string): Promise<Row> {
const response = await getDatasourceAndQuery({
endpoint: getEndpoint(table._id!, Operation.READ),
filters: buildFilters(rowId, {}, table),
filters: this.prepareFilters(rowId, {}, table),
meta: {
table,
},
@ -514,7 +552,7 @@ export class ExternalRequest<T extends Operation> {
endpoint: getEndpoint(tableId, operation),
// if we're doing many relationships then we're writing, only one response
body,
filters: buildFilters(id, {}, linkTable),
filters: this.prepareFilters(id, {}, linkTable),
meta: {
table: linkTable,
},
@ -538,8 +576,8 @@ export class ExternalRequest<T extends Operation> {
for (let row of rows) {
const rowId = generateIdForRow(row, table)
const promise: Promise<any> = isMany
? removeManyToManyRelationships(rowId, table, colName)
: removeOneToManyRelationships(rowId, table)
? this.removeManyToManyRelationships(rowId, table, colName)
: this.removeOneToManyRelationships(rowId, table)
if (promise) {
promises.push(promise)
}
@ -562,12 +600,12 @@ export class ExternalRequest<T extends Operation> {
rows.map(row => {
const rowId = generateIdForRow(row, table)
return isMany
? removeManyToManyRelationships(
? this.removeManyToManyRelationships(
rowId,
table,
relationshipColumn.fieldName
)
: removeOneToManyRelationships(rowId, table)
: this.removeOneToManyRelationships(rowId, table)
})
)
}
@ -580,14 +618,10 @@ export class ExternalRequest<T extends Operation> {
throw "Unable to run without a table name"
}
if (!this.datasource) {
this.datasource = await sdk.datasources.get(datasourceId!)
if (!this.datasource || !this.datasource.entities) {
throw "No tables found, fetch tables before query."
}
this.tables = this.datasource.entities
await this.retrieveMetadata(datasourceId!)
}
const table = this.tables[tableName]
let isSql = isSQL(this.datasource)
let isSql = isSQL(this.datasource!)
if (!table) {
throw `Unable to process query, table "${tableName}" not defined.`
}
@ -612,7 +646,7 @@ export class ExternalRequest<T extends Operation> {
break
}
}
filters = buildFilters(id, filters || {}, table)
filters = this.prepareFilters(id, filters || {}, table)
const relationships = buildExternalRelationships(table, this.tables)
const incRelationships =
@ -660,7 +694,11 @@ export class ExternalRequest<T extends Operation> {
body: row || rows,
// pass an id filter into extra, purely for mysql/returning
extra: {
idFilter: buildFilters(id || generateIdForRow(row, table), {}, table),
idFilter: this.prepareFilters(
id || generateIdForRow(row, table),
{},
table
),
},
meta: {
table,