Sql 在nodejs中进行postgres条件查询
我有Sql 在nodejs中进行postgres条件查询,sql,node.js,postgresql,Sql,Node.js,Postgresql,我有selectquery,我想添加filter和search值来选择query。用户可以单独或同时执行搜索和筛选。以下是场景: 当我仅应用搜索时(成功) 当我仅应用第一个过滤器时(成功) 当我应用两个过滤器时(成功) 当我仅应用第二个过滤器时(失败) 当我应用搜索和两个过滤器时(失败) 当我应用搜索和第一个过滤器时(失败) nodejs const query = { text: ` select master.contact.id, master.contac
select
query,我想添加filter
和search
值来选择query。用户可以单独或同时执行搜索和筛选。以下是场景:
当我仅应用搜索时(成功)
当我仅应用第一个过滤器时(成功)
当我应用两个过滤器时(成功)
当我仅应用第二个过滤器时(失败)
当我应用搜索和两个过滤器时(失败)
当我应用搜索和第一个过滤器时(失败)
nodejs
const query = {
text: `
select master.contact.id,
master.contact.name
from
master.contact
`
};
if (input.search) {
query.text += ` where
(master.contact.pan ILIKE '${input.search}%' or master.contact.ira ILIKE '${input.search}%')`;
}
if (input.filters) {
const {
isActive,
pan
} = input.filters;
if (isActive !== undefined) {
query.text += ` where master.contact.isActive = ${isActive}`;
}
if (pan) {
query.text += `and master.contact.pan = ${pan}`;
}
如何收集数组中的条件,然后加入并附加它,如下所示:
const query = {
text: `
select master.contact.id,
master.contact.name
from
master.contact
`
};
// Create an array to store any criteria
var where = [];
if (input.search) {
where.push(`(master.contact.pan ILIKE '${input.search}%' or master.contact.ira ILIKE '${input.search}%')`);
}
if (input.filters) {
const {
isActive,
pan
} = input.filters;
if (isActive !== undefined) {
where.push(`master.contact.isActive = ${isActive}`);
}
if (pan) {
where.push(`master.contact.pan = ${pan}`);
}
// If criteria were added, append to query text
if (where.length > 0) {
query.text += ' where ' + where.join(' and ');
}
我最终使用了
,其中1=1
。但这很好
select name, id from master.contact where isActive=true and pan='abcd';
select name, id from master.contact and pan='abcd';
select * from master.contact where name ilike 'sal%' or name ilike 'man%' where master.contact.is_active = true and pan='abcd';
select * from master.contact where name ilike 'sal%' or name ilike 'man%' where master.contact.is_active = true;
const query = {
text: `
select master.contact.id,
master.contact.name
from
master.contact
`
};
if (input.search) {
query.text += ` where
(master.contact.pan ILIKE '${input.search}%' or master.contact.ira ILIKE '${input.search}%')`;
}
if (input.filters) {
const {
isActive,
pan
} = input.filters;
if (isActive !== undefined) {
query.text += ` where master.contact.isActive = ${isActive}`;
}
if (pan) {
query.text += `and master.contact.pan = ${pan}`;
}
const query = {
text: `
select master.contact.id,
master.contact.name
from
master.contact
`
};
// Create an array to store any criteria
var where = [];
if (input.search) {
where.push(`(master.contact.pan ILIKE '${input.search}%' or master.contact.ira ILIKE '${input.search}%')`);
}
if (input.filters) {
const {
isActive,
pan
} = input.filters;
if (isActive !== undefined) {
where.push(`master.contact.isActive = ${isActive}`);
}
if (pan) {
where.push(`master.contact.pan = ${pan}`);
}
// If criteria were added, append to query text
if (where.length > 0) {
query.text += ' where ' + where.join(' and ');
}